ПОВЕРХНОСТЬ ТЕЛА ДЛЯ УМЕНЬШЕНИЯ ТРЕНИЯ И ПОВЕРХНОСТЬ ТЕЛА ДЛЯ ИНТЕНСИФИКАЦИИ ТЕПЛООБМЕНА

Изобретение относится к аэрогидромеханике, энергетике, задачам повышения эффективности транспорта, к медицине и другим областям. Поверхность характеризуется тем, что на гладкой поверхности с защитным слоем или без него выполнены углубления, образованные сопряженными по общим касательным выпуклыми и вогнутыми поверхностями второго порядка, при этом сопряжение углубления с исходно гладкой поверхностью осуществляется с помощью выпуклых поверхностей образующих скаты, для которых в местах сопряжения исходно гладкая поверхность является касательной, причем вогнутая поверхность, образующая донную часть углубления, выполнена гладкой или с обтекателем, а отношение глубины hc углубления к размеру L1 углубления вдоль направления потока находится в интервале 0,001≤hc/L1≤0,1, отношение поперечного размера L2 углубления к продольному размеру L1 углубления находится в интервале 0,25≤L2/L1≤1, при плотности f расположения углублений на поверхности, находящейся в интервале 0,05≤f≤0,5. На предлагаемой поверхности ...

ТЕРМИТНЫЙ УСКОРИТЕЛЬ ОБЫЧНОЙ ТОРПЕДЫ ГОЛОДЯЕВА

Изобретение относится к гидродинамике. В головной части торпеды располагается корпус из жаропрочной стали. Корпус содержит внутренние сквозные трубки, расположенные вдоль направления движения. В корпусе располагается железоалюминиевый термит с запальным устройством. Торпеда соединена с корпусом кронштейном. Достигается снижение сопротивления трения торпеды в жидкости. 1 ил.

УСТРОЙСТВО ДЛЯ СНИЖЕНИЯ ПОТЕРЬ НАПОРА ПРИ ПЕРЕМЕЩЕНИИ ЖИДКОСТИ ИЛИ ГАЗА ПО ТРУБОПРОВОДУ

... 1. Устройство для снижения потерь напора при перемещении жидкости или газа по трубопроводу, содержащее генератор ультразвуковой частоты, кабелем связанный с преобразователем ультразвуковой частоты, отличающееся тем, что оно снабжено монолитным наконечником, для съемной установки на трубопроводе, цилиндрическая часть которого предназначена для размещения внутри трубопровода, а коническая связана с преобразователем ультразвуковой частоты при помощи герметичного разъемного соединения.2. Устройство по п. 1, отличающееся тем, что на указанном наконечнике выполнен фланец для закрепления на фланце трубопровода.3. Устройство по п.1, отличающееся тем, что оно снабжено набором сменных наконечников.

СПОСОБ И СИСТЕМА ДЛЯ СОЗДАНИЯ ПОТЕНЦИАЛА ПО ПОВЕРХНОСТИ ТЕЛА

... 1. Способ создания потенциала по поверхности тела с использованием потоков жидкости под давлением из сопел, отверстий или прорезей по одной или более поверхностей тела, причем жидкость под давлением нагнетают в виде потоков из сопел, отверстий или прорезей по одной или более поверхностям тела от передней кромки, создавая потенциал давления по поверхности тела между передней кромкой и задней кромкой, отличающийся тем, что углы между соплами, отверстиями или прорезями и искривленной поверхностью или поверхностями на передней кромке отрегулированы так, что потоки из сопел, отверстий или прорезей проходят в направлении этой поверхности или этих поверхностей под разными углами для приведения в движение, управления или маневрирования указанного тела. 2. Система для создания потенциала по поверхности тела с использованием потоков из сопел, отверстий или прорезей по одной или более поверхностям указанного тела для приведения этого тела в движение, управления им или маневрирования, причем по меньшей ...

Akustischer Druckimpulsgenerator

Verfahren und Vorrichtung zur Steuerung einer laminaren Strömung.

Verfahren zur Unterdrückung periodischer Druckänderungen in einem von einer Außenströmung umströmten und mit einer Öffnung versehenem Hohlraum

Finite vortex model for use in fluid flow numerical simulation, especially for modeling unsteady flows, whereby a general roll-off model is used to model the finite edge vortex

Finite vortex model for modeling oscillating structures in fluid flows, without use of complex Navier-Stokes methods. The method is based largely on replacement of the KUTTA condition of current airfoil theory, i.e. smooth flow on the trailing edge, with a general roll-off model for the finite edge vortex.

Improvements relating to pile wrappers

Tail fairing designed with features for fast installation, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and

Tail fairings designed with features for fast installation and/or for suppression of vortices addition between fairings, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings.

Improved strakes

METHOD AND CONSTRUCTION FOR REDUCING THE DRAG OF BODIES ARRANGED IN A FLOW

Improvements in diffuser for sub-critical flow

... 772,406. Compressing gases. SVENSKA FLYGMOTOR AKTIEBOLAGET. Sept. 12, 1955 [Septf. 11, 1954], No. 26054/55. Class 8(1) In a shortened diffuser for sub-critical flow, a wholly or partially perforated shield 1 is provided inside the diffuser channel at a distance from the wall 3 of the diffuser, the peripheral portion 2 of the shield being so curved with relation to the surrounding diffuser wall 3 so as to form between itself and the wall an annular passage 4 the cross-sectional area of which increases in the direction of flow through the diffuser. The shield is shaped as a spherical cup and is placed at the locus 5 of the inflection points of the paths of flow of the particles of the medium.

REGULATION OF RESPONSE OF BODIES TO FLUID FLOW

FAIRING

FAIRING

Vortex-induced vibration (VIV) supression of riserarrays

Vortex-induced vibration (VIV) supression of riserarrays.

Spar structure

Vortex-induced vibration (VIV) supression of riserarrays.

FAIRING

Vortex-induced vibration (VIV) supression of riserarrays.

OBJECT, WHOSE SURFACE IS TO TREATING, SURFACE TREATMENT PROCEDURES AND SURFACE TREATMENT DEVICE

PROTECTION OF SURFACES AGAINST CAVITATION EROSION

DEVICE FOR THE SCHUTZEN OF PIPINGS U.DGL. AGAINST WEAR AND STONE BEGINNING

DEVICE WITH A SURFACE WITH CELLS, WHICH ARE WITH BLISTERS TO AN IMPROVED RIVER RESISTANCE REDUCTION OF A LIQUID GROUP, AND ASSOCIATED PROCEDURE

Method and apparatus for mixing fluids for particle agglomeration

Methods and apparatus for installation of a device about a marine structure

Vortex-induced vibration (VIV) suppression of riser arrays

A system comprising an array of structures in a flowing fluid environment, the array comprising at least 3 structures; and vortex induced vibration suppression devices on at least 2 of the structures.

METHOD AND APPARATUS FOR MIXING FLUIDS FOR PARTICLE AGGLOMERATION

An aerodynamic agglomerator (10) promotes mixing and agglomeration of pollutant particles in a gas stream, to facilitate the subsequent removal of the particles from the gas stream. The agglomerator (10) is mounted in a duct (11) through which the gas stream flows. The agglomerator (10) comprises a plurality of parallel plates (12) which extend in the overall direction of flow of the gas stream, and are spaced transversely across the width of the duct (11) to divide the duct into multiple parallel passages. The duct (11) is configured and/or has formations therein for creating large scale turbulence in the gas stream upstream of the passages. A vane assembly (13) is provided in each passage for generating a zone of small scale turbulence of such size and/or intensity that the pollutant particles are entrained in the turbulence. Each vane assembly (13) is located centrally relative to its respective passage and comprises a plurality of sharp-edged vanes (15) spaced successively in the overall ...

SYSTEM FOR REDUCING VORTEX INDUCED VIBRATION OF A MARINE ELEMENT

A strake system (12) is provided for protecting a cylindrical marine element (6) from vortex induced vibration. The strake system (12) comprises at least two shell members (16A, 16B) forming a hollow cylinder defining a cylindrical hollow passage for receiving the marine element (6), the hollow cylinder being provided with a strake extending along the outer surface of the hollow cylinder so as to reduce vortex induced vibrations of the marine element.

IMPROVED INSERTION MAGNETIC METERS AND METHODS

A magnetic insertion meter is disclosed herein. Disclosed insertion meters include in some examples, a sensor head tube cylinder having a textured front surface and at least two electrodes. Disclosed insertion meters include a textured front surface adapted to move the separation point of a fluid flowing over the sensor head tube towards the upstream surface as compared to the same sensor head tube without the textured front surface. Methods of measuring flow are also disclosed herein using example magnetic insertion meters.

TAIL FAIRING DESIGNED WITH FEATURES FOR FAST INSTALLATION, APPARATUS INCORPORATING SUCH FAIRINGS, METHODS OF MAKING AND USING SUCH FAIRINGS AND APPARATUS, AND METHODS OF INSTALLING SUCH FAIRINGS

Tail fairings designed with features for fast installation and/or for suppression of vortices addition between fairings, apparatus incorporating such fairings, methods of making and using such fairings and apparatus, and methods of installing such fairings.

CYLINDRICAL WING TIP WITH HELICAL SLOT

La présente invention concerne un dispositif ayant la forme d'une cavité cylindrique en spirale et/ou à fente hélicoïdale (15) permettant de réduire la traînée induite, le tourbillon marginal dit vortex et d'augmenter la finesse. Fixé solidaire à l'extrémité de l'aile (10) ou articulé toujours solidaire de cette extrémité d'aile, il peut s'adapter à tous profils, en particulier aux ailes des avions, des planeurs, aux pales d'hélicoptères et aux extrémités d'hélices tractantes, propulsantes ou propulsées comme les pales d'éoliennes ou encore pour appareils tels que bateaux ou sous-marins utilisant la portance ou la direction dans leur déplacement trois axes, vertical, horizontal et en lacets. Aux performances initiales, cette invention permet d'utiliser de plus faibles motorisations, de faire des trajets plus longs et plus vite tout en consommant moins d'énergie ou en produisant plus pour les éoliennes par exemple, d'utiliser des charges plus importantes, d'augmenter et d'aborder le trafic ...

AIR INLET COVER

Film laminates for packaging applications having at least two polymer layers which are formed together as a coextruded blown film such that the first polymer layer is a surface layer relative to the film and comprises a heat-sealable material having a melt index of at least 20 g/10 min. The present invention further provides food packages form ed from these film laminates.

METHOD FOR MOUNTING A VORTEX GENERATOR AND MOUNTING APPARATUS FOR CARRYING OUT THE METHOD

The invention relates to a method for securing an attachment (3, 33) to a component, in particular a rotor blade (1), in which the component is provided with an adhesion surface (36), the attachment (3, 33) is provided with a corresponding adhesion surface (9), the attachment (3, 33) is provided with an adhesive-conveying connection to the corresponding adhesion surface (9), the adhesion surface (36) is placed on the corresponding adhesion surface (9), a gap (53) is formed between the adhesion surface (36) and the corresponding adhesion surface (9), the attachment (3, 33) is pressed against the corresponding adhesion surface (9) and at the same time the adhesive (80) is injected into the gap (53) through the adhesive-conveying connection.

DISTRIBUTION ARRAY FOR USE IN A SETTLER AREA OF A MIXER-SETTLER

A distribution array (10) for use in a settler area (12) of a mixer-settler, the distribution array (10) characterised by: at least one panel (26, 28) of linearly-spaced barrier elements (30), wherein the depth of the barrier elements (30), relative to a length of the settler area (12) in which it is to be positioned, is greater than the spacing between the barrier elements (30), thereby defining a fluid flow channel between adjacent barrier elements (30) that is longer than it is wide.

FLUIDIC TRAVERSE ACTUATOR

A system and methods for a self-rotating fluidic traverse actuator are presented. A turbine rotates in response to a fluid flow, and an outer cylinder with a longitudinal slot that ejects the fluid flow. An inner cylinder rotates inside the outer cylinder in response to a rotation of the turbine and at least one helical slot of the inner cylinder ejects the fluid flow into the longitudinal slot.

METHOD OF DYNAMIC ENERGY-SAVING SUPERCONDUCTIVE PROPELLER INTERACTION WITH A FLUID MEDIUM

In a propeller system a process of dynamic energy-saving superconductive propeller interaction with a fluid medium comprises providing a perforation on the working blade surfaces having the different pressures, with an element possibility of the dynamic fluid medium flow connection between said blade perforations; and modulating a value of said connection of the blade so-called "breathing surfaces" in dependence on a change of a value of at least one controlled characteristic influencing a dynamic energy efficiency of a propeller process such that a dynamic structure-energetically optimization of said modulated surface-energy interaction is provided.

SYNTHETIC JET MUFFLER

A synthetic jet muffler includes an exit end, a propagation path for conducting a first sound wave emitted by a synthetic jet generator to the exit end, and a shroud for conducting a second sound wave emitted from the synthetic jet generator in a direction opposite to the first sound wave to the exit end, wherein the shroud is disposed so that the first and second sound waves travel different distances to effect noise cancellation at the exit end.

ORTHOTROPIC BIMORPH FOR IMPROVED PERFORMANCE SYNTHETIC JET

Piezoelectric actuators for synthetic jets and other devices are disclosed having orthotropic piezoelectric bimorphs with increased out-of-plane displacements for greater responsiveness to applied electric fields. In some embodiments, the piezoelectric actuators may include interdigitated electrodes applied to a surface of a piezoelectric plate to produce greater in-plane strains in the plate and greater out-of-plane displacements of a flexible diaphragm of the synthetic jet. In other embodiments, the actuator includes an orthotropic piezoceramic plate having a greater d coupling coefficient in one in-plane direction and in the other in- plane direction to cause desired diaphragm out-of-plane displacements when an electric field is applied by electrodes.

Vorrichtung zum Verhindern eines durch Windkräfte erzeugten Schwingens von zylindrischen Bauwerken

Through-flow channel with eddy generator

The roof surface (10) locates with an edge (15) crossways to the throughflow channel on the same channel wall (21) as the side walls. The longitudinally directed edges (12,14) of the roof surface closely connected with the longitudinally directed edges of two side surfaces (11,13) extending into the flow channel run at an adjustment angle (theta) to the channel wall. The connecting edge (16) of the two side surfaces run vertically to the channel wall, with which the side surfaces are closely connected. The ratio between the height of the connecting edge of the two side surfaces to the channel height is so selected that the eddy produced directly downstream of the eddy generator fills out the full channel height or the full height of the channel part applicable to the eddy generator.

Multistage body having a plurality of flow channels.

Es wird ein neuer mehrstufiger Körper mit einer Vielzahl von Strömungskanälen beschrieben, welcher in Strömungsrichtung im einzelnen Strömungskanal mindestens eine turbulenzerzeugende, einen nicht geschlossenen Unterkanal bildende, an die Kanalwandung angebundene Fläche aufweist, die bei Strömungseintritt eine Prallfläche (1) und bei Strömungsaustritt eine Abrisskante (2) für die Strömung bildet. Der Körper weist mehrere Kanalstrukturen auf, die nacheinander in Verbindung stehend angeordnet sind und in Strömungsrichtung zueinander einen stufenförmigen Übergang bilden.

Wing structure and fairing device

Disclosed is a wing structure (1) which comprises a main wing (2) that extends in a second direction intersecting with a first direction serving as a direction along which fluid flows and an auxiliary wing (3) that is separated from the main wing (2) and that faces the main wing (2) at a position adjacent to the front portion of the main wing (2). The chord length of the auxiliary wing (3) is shorter than that of the main wing (2). The fluid hits the auxiliary wing (3) formed at the position adjacent to the front portion of the main wing (2), is guided to a space between the auxiliary wing (3) and the main wing (2), and is compressed while passing between the auxiliary wing (3) and the main wing (2). With this, a region of fluid compression process can be preferably formed on a surface of the main wing (2), resulting in an increase in acting force.

Fairing

METHOD AND DEVICE FOR CONTROLLING VORTEX STRUCTURES OF WAKE OCCURRING TO THE WALLS OF THE MOTOR VEHICLES

Dispositif d'égalisation des paramètres d'une circulation et, le cas échéant, de mélange d'au moins deux courants partiels débouchant dans un courant principal.

DISPOSITIF D'EGALISATION D'UNE CIRCULATION. AU MOINS UNE SURFACE RAPPORTEE, GENERATRICE DE TURBULENCE 15, DONT L'ORIENTATION DU BORD COMPREND UNE COMPOSANTE DANS LA DIRECTION DU COURANT PRINCIPAL AINSI QU'UNE COMPOSANTE PERPENDICULAIRE A CETTE DIRECTION, EST MONTEE DE MANIERE QU'ELLE SOIT INCLINEE SOUS UN ANGLE AIGU SUR LA DIRECTION DU COURANT PRINCIPAL. CETTE SURFACE RAPPORTEE A UN BORD SYMETRIQUE, LE PLAN DE SYMETRIE ETANT ORIENTE DANS LA DIRECTION DE L'ECOULEMENT PRINCIPAL, ET IL A AVANTAGEUSEMENT UNE FORME EN DELTA DONT LA POINTE EST TOURNEE DANS LE SENS INVERSE A CELUI DU COURANT PRINCIPAL APPLICATION AUX TOURS DE REFROIDISSEMENT A TIRAGE NATUREL ETOU A VENTILATION FORCEE AINSI QU'AUX CHEMINEES OU CANALISATIONS.

LIMITEUR DE DEBIT D'UN CIRCUIT HYDRAULIQUE

L'invention concerne un limiteur de débit d'un circuit hydraulique. Le limiteur est caractérisé en ce qu'il est constitué par un conduit dont la paroi interne est un cylindre de révolution dans l'axe duquel est disposé coaxialement un corps profilé comportant un nez sur son extrémité amont et un culot sur son extrémité aval, par des obstacles disposés dans l'espace annulaire compris entre la paroi et le corps, lesdits obstacles engendrant une cavitation développée dans ledit espace annulaire sous l'influence d'un débit prédéterminé dans le conduit, et par des moyens fixation du corps et des obstacles sur le conduit. L'invention s'applique aux conduites d'installations hydrauliques.

SYSTEM FOR CUTTING SOLID BODY TYPE "CABLE".

FLOW CONTROL VALVE Of a HYDRAULIC SYSTEM

Longitudinal trailing vortex structure controlling device for e.g. streamlined car, has adjusting unit adjusting length of longitudinal element to cause deconstruction and collapsing of vortex structure

L'invention concerne un dispositif de contrôle d'une structure tourbillonnaire de sillage apparaissant aux parois de véhicules automobiles en mouvement, ladite structure tourbillonnaire s'étendant longitudinalement autour d'un axe longitudinal (5), caractérisé en ce qu'il comprend un élément longitudinal (6) présentant une symétrie de révolution autour de son axe longitudinal, et en ce qu'il comprend des moyens de réglage (8) de la longueur et de la position de l'élément longitudinal afin d'aligner sensiblement l'axe de l'élément avec l'axe de ladite structure tourbillonnaire et de régler la longueur de l'élément afin que sa longueur soit suffisante pour provoquer la déstructuration et/ou l'éclatement de la structure tourbillonnaire. L'invention concerne également un procédé de mise en oeuvre d'un tel dispositif.

DEVICE FOR PASSIVE SUPPRESSION OF VORTEX-INDUCED VIBRATIONS (VIV) IN STRUCTURES

A device for the total suppression of Vortex-induced vibrations (VIV) that structures suffer when exposed to currents. Typical marine structures that are prone to VIV are riser pipes, spar buoys and platforms, tendons, catenaries, mooring systems, etc. The invention not only completely suppresses VIV in the structures but also generate drag reductions in the structures. The device comprises a rigid mesh (1) formed by a rigid grid pattern of intersecting elements with certain mesh densities and sizes. The suppression system is to be installed around a structure (2) at a specific fixed distance, thereby resulting in a rigid cylindrical mesh of radius (r) with a size (s) of the clearance of the mesh and a diameter of the wires (di) that are expressed as a function of the structure diameter (D). The parameters "r" and "s" determine the degree of suppression of VIV.

CONTROLLING BOUNDARY LAYER FLUID FLOW

A method of controlling fluid flow (14) in a boundary layer at a fluid-surface interface comprising, providing a plurality of blades (11) which project from the fluid contracting surface into a boundary layer such that in use the blades (11) are orientated to control fluid flow (14) in the boundary layer.

Flow deflecting devices

A translating cowl thrust reverser for a ducted fan gas turbine engine has a fan cowl, the downstream portion of which is translatable axially to open an aperture in the cowl. The aperture has upstream and downstream side-walls and which are curved to deflect fan air flow through the aperture in a forward direction. An annular plate is positioned at the outlet from the aperture and projects into the turbulent flow region on the upstream side-wall to define with the side-wall a recess open to the flow which delays the separation of the flow from the side-wall. This increases the effective area of the outlet and the angle through which the flow is turned thus improving the thrust reverser efficiency to the point at which no cascades are needed in the aperture.

Airflow control devices based on active materials

An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as the need for increased airflow through the radiator due to increases in engine coolant temperature. As such, the device improves vehicle fuel economy while maintaining proper engine cooling. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively ...

CONTAINERS, BOTTLES, DRUMS, VATS, AND TANKS HAVING A SLIPPERY SURFACE

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.

FAIRING

A fairing device for the reduction of vortex-induced vibrations or motions and the minimization of drag about a substantially cylindrical element immersed in a fluid medium, comprising; a cylindrical element, a fairing rotatably mounted about the cylindrical element, the fairing comprising a shell with a cylindrical cross-sectional shape with an outer diameter (D) following the outer diameter of the cylindrical element from an upward stagnation point of 0 degrees to at least +/−90 degrees, and which at +/−90 degrees continues as two fin-like portions in an aft direction and defining a chord length (C), further comprising that the fin-like portions are convexly curved aft of +/−90 degrees thus tapering towards each other and defining a tail end opening or gap less than the fairing standoff height. 1. A fairing device for the reduction of vortex-induced vibrations or motions and reduction of drag about a substantially cylindrical element immersed in a fluid medium , comprising;a mainly cylindrical element,a fairing rotatably mounted about the mainly cylindrical element, the fairing comprising a shell with a mainly cylindrical cross-sectional shape with an outer diameter (D) following the outer diameter of said cylindrical element from an upward stagnation point of 0 degrees to at least +/−90 degrees, and which at +/−90 degrees continues as two fin-like portions in an aft direction and defining a chord length (C),characterized in thatthe fin-like portions are convexly curved aft of +/−90 degrees thus tapering towards each other and defining a tail end opening less than the fairing standoff height.2. The fairing device of claim 1 , wherein the fin-like portions are convexly curved fore of +/−90 degrees thus tapering towards each other and defining a tail end opening less than the fairing standoff height.3. The fairing device of claim 1 , wherein the tail end opening constitutes more than 80% of the fairing standoff height.4. The fairing device of claim 1 , wherein said ...

VORTEX-SHEDDING-ARRANGEMENT

СИСТЕМА ОБТЕКАЕМОГО ТЕЛА С ИЗМЕНЯЕМОЙ КРИВИЗНОЙ ПРОФИЛЯ И СПОСОБ УПРАВЛЕНИЯ ЕЕ КОНФИГУРАЦИЕЙ (ВАРИАНТЫ)

Группа изобретений относится к аэро- и гидродинамике обтекаемых тел. Способ управления конфигурацией обтекаемого тела включает придание обтекаемому телу кривизны профиля путем активизации соединенного с обтекаемым телом привода на основе сплава с эффектом памяти формы. Обтекаемое тело содержит первый слой слоистого композиционного материала и второй слой слоистого композиционного материала, между которыми вклеен привод на основе сплава с эффектом памяти формы. Система обтекаемого тела с изменяемой кривизной профиля содержит обтекаемое тело, способное принимать первую и вторую кривизну профиля, и привод на основе сплава с эффектом памяти формы, выполненный с возможностью придания обтекаемому телу первой кривизны профиля в ответ на достижение первой температуры срабатывания и придания обтекаемому телу второй кривизны профиля в ответ на достижение второй температуры срабатывания. Обтекаемое тело содержит первый слой слоистого композиционного материала и второй слой слоистого композиционного ...

СПОСОБ УМЕНЬШЕНИЯ АЭРОДИНАМИЧЕСКОГО СОПРОТИВЛЕНИЯТЕЛА В СВЕРХЗВУКОВОМ ПОТОКЕ

Изобретение относится к аэродинамике. Способ уменьшения аэродинамического сопротивления тела заключается в импульсно-периодическом энергетическом воздействии на встречный поток газа. Указанное воздействие осуществляют путем подачи высоковольтного напряжения вдоль поверхности сегнетоэлектрического элемента, размещенного в лобовой части тела. Изобретение позволяет снизить энергозатраты на образование приповерхностной плазмы и упростить способ. 1 ил.

СПОСОБ ВОЗДЕЙСТВИЯ НА ТОПЛИВНО-ВОЗДУШНЫЙ ПОТОК

Использование: в транспортной технике, в частности в смесителях топливных аэрозолей в авиационных и автомобильных двигателях. Сущность изобретения: при воздействии на топливо-воздушный поток, обтекающий твердое тело, генерирующее продольные вихри, производят подачу струи газа с частицами твердого материала навстречу потоку, а головной части твердого тела придают колебательное движение относительно центра ее тяжести и воздействуют на топливно-воздушный поток в режиме наложения поперечных и продольных колебаний пульсирующего потока. 5 ил.

СПОСОБ СНИЖЕНИЯ УРОВНЯ КОЛЕБАНИЙ ДАВЛЕНИЯ ЖИДКОСТИ В ПОТОКЕ, ОБТЕКАЮЩЕМ ОБЪЕКТ, И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Изобретение относится к судостроению и гидромашиностроению, касаясь снижения уровня колебаний давления в потоке вокруг объекта. Способ состоит в том, что при помощи упругой оболочки создают динамический гаситель колебаний давления жидкости в потоке, обтекающем в объект, в виде упругоинерционной системы с изменяемыми параметрами колебаний объема упругой оболочки. Для этого в оболочку помещают эластичное вещество, в котором создают газовую полость. При появлении колебаний давления жидкости в вышеупомянутом потоке возникают вынужденные колебания объема оболочки в противофазе колебаниям давления жидкости в потоке. Затем изменяют частоту и амплитуду колебаний объема оболочки до совпадения инициируемых ею колебаний давления окружающей оболочку жидкости с частотой и амплитудой колебаний давления жидкости в самом вышеупомянутом потоке, чем снижают уровень этих колебаний. Устройство для осуществления этого способа имеет упругую оболочку, закрепленную на поверхности объекта в зоне колебаний давления ...

СПОСОБ И СИСТЕМА ДЛЯ СОЗДАНИЯ ПОТЕНЦИАЛА ПО ПОВЕРХНОСТИ ТЕЛА

Изобретение относится к авиации и водному транспорту и касается управления воздушными, надводными и подводными судами посредством гидродинамического эффекта для создания потенциала по поверхности судов. При реализации способа создания потенциала по поверхности тела используют потоки жидкости под давлением из сопел, отверстий или прорезей, по меньшей мере, одной трубы по одной или более поверхностям тела. При этом жидкость под давлением нагнетают в виде потоков из сопел, отверстий или прорезей по одной или более поверхностям тела от передней кромки, создавая потенциал давления по поверхности тела между передней кромкой и задней кромкой. При этом вращают, по меньшей мере, одну трубу вокруг ее оси. Система для создания потенциала по поверхности тела с использованием потоков из сопел, отверстий или прорезей по одной или более поверхностям указанного тела для приведения этого тела в движение, управления им или маневрирования имеет, по меньшей мере, одну трубу с соплами, отверстиями или прорезями ...

Аппарат для гидродинамической обработки изделий погружением

... 1. Аппарат для гидродинамической обработки изделий погружением, состоящий из корпуса-ванны для рабочей жидкости, поворотного стола с приводом и активатора, выполненного в виде гребного винта, отличающийся тем, что, с целью интенсификации процесса гидродинамической обработки изделий и повышения ее качества, привод вала гребного винта снабжен двумя пространственными кривошипами, связанными между собой шарнирно посредством шатуна и позволяющими получить неустановившееся вращение гребного винта с переменной угловой скоростью, причем параметры взаиморасположения шарниров привода определяются по формулеl/sin α=l/ sin α,где l- кратчайшие расстояния между скрещивающимися осями вращения шарниров пространственных кривошипов;α- углы скрещивания осей вращения шарниров пространственных кривошипов;l- кратчайшие расстояния между скрещивающимися осями вращения шарниров шатуна и корпуса-ванны;α- углы скрещивания осей вращения шарниров шатуна и корпуса-ванны.2. Аппарат по п.1, отличающийся тем, что одна ...

ТЕПЛООБМЕННАЯ ПОВЕРХНОСТЬ (ВАРИАНТЫ)

Изобретение относится к области теплоэнергетики, а конкретно к теплоэнергетическим установкам, используемым для помещений, зданий, сооружений, а также в различных промышленных газотурбинных установках. Теплообменная поверхность, имеющая на поверхности выемки с переменной глубиной и шириной, в каждой из которых выполнены ребра, причем ребра расположены вдоль основного потока в верхней по потоку части и образуют две диффузорные полости. Технический результат - увеличение теплоотдачи за счет увеличения мощности теплового потока в диффузорных полостях и, как следствие, уменьшение габаритов теплообменной поверхности. 3 ил.

СПОСОБ ВОЗДЕЙСТВИЯ НА СВЕРХЗВУКОВОЙ ПОТОК

Anordnung eines Aerodynamischen Bauteils mit einer geschlitzten Hinter- oder Seitenkante in einer Strömung

Anordnung eines aerodynamischen Bauteils in einer Strömung, wobei das Bauteil eine in einer Überströmungsrichtung turbulent überströmte Kante aufweist, an der zwei Hauptflächen des Bauteils aneinander stoßen und die Strömung teilen oder zwei getrennte Teilströme zu der Strömung zusammenführen, wobei das Bauteil im Bereich der Kante mit Schlitzen versehen ist, die in der Überströmungsrichtung der Kante parallel zueinander ausgerichtet sind, und wobei eine Schlitzlänge der Schlitze zwischen 1 und 10 cm beträgt, dadurch gekennzeichnet, dass die Schlitze (3) von der einen Hauptfläche (4) bis auf die andere Hauptfläche (5) mit in der Überströmungsrichtung (U) und über der jeweiligen Schlitzhöhe des Schlitzes (3) zwischen den beiden Hauptflächen (4, 5) konstanter Schlitzweite (s) zwischen 0,05 mm und 0,5 mm durchlaufen und dass ein Schlitzabstand (a) der Schlitze (3) untereinander nicht größer als das 10-fache der Schlitzweite (s) der Schlitze (3) ist.

Schleppkabel zum Schleppen im Wasser, Schleppantenne und Wasserfahrzeug

Die Erfindung betrifft ein Schleppkabel zum Schleppen im Wasser, wobei das Schleppkabel einen Kabelkern zum Übertragen einer Zugkraft, einer Energie und/oder einer Information und einen Kabelmantel zur Isolation aufweist, und das Schleppkabel ein an dem Kabelmantel stoffschlüssig verbundenes Oberflächenstrukturelement aufweist und das Oberflächenstrukturelement eine Erhebung und/oder eine Vertiefung gegenüber einem Außendurchmesser des Kabelmantels frei von dem Oberflächenstrukturelement aufweist, sodass ein Verdrillen, eine Vibration und/oder ein Zug des Schleppkabels vermindert wird. Des Weiteren betrifft die Erfindung eine Schleppantenne zum Schleppen im Wasser und ein Wasserfahrzeug zum Schleppen einer Schleppantenne.

Körperform zur Verringerung des Formwiderstandes bei der Bewegung durch ein Medium.

Es wird eine Lösung dargestellt, die den Staudruck eines Körpers, der sich durch ein Medium bewegt, über die gesamte Länge des Körpers abbaut, indem die Grenzlinie zwischen Überdruck und Unterdruck verlängert wird, um dadurch den Formwiderstand zu verringern.Die Form dieses Körpers ist für alle Fahrzeuge oder Körper nutzbar, die sich durch ein Medium bewegen.

Fluiddynamisch wirksames punktsymmetrisches Strömungsprofil aus geometrischen Grundfiguren

Fluiddynamisch wirksames Strömungsprofil aus geometrischen Grundfiguren dadurch gekennzeichnet, dass die Kontur des Profils durch vier Teilellipsen beschrieben wird.

Tail fairing designed with features for suppression of vortices addition between fairings appratus incorporating such fairings,methods of making and using suc

Protection of underwater elongate members

Fluid flow modification apparatus with multi-scale trailing edge

A fluid flow modification apparatus (10) has a surface (15), the surface having an edge (65) of length Y over or past which a fluid can flow in use. The edge (65) has a virtual boundary (30) of length X where Y is greater than X. At least a first portion of the apparatus (10) within the virtual boundary (30) comprises an opening (55) and at least a second portion of the apparatus (10) comprises a projection (60) which extends beyond the virtual boundary (30) to provide the edge (65). The edge (65) is multi-scale.

REGULATION OF RESPONSE OF BODIES TO A FLUID FLOW

Drag reduction fairing

In one aspect, a vehicle, such as an aircraft includes a body having an exterior surface 14 and a protrusion, such as an anti-collision light 16 extending outward from the surface. The vehicle further includes a fairing 18 mounted on the surface 14 directly adjacent and behind the protrusion. The fairing has a forward end 22, an aft end 24 opposite the forward end, and opposing sides 26 extending between the forward end and the aft end. The opposing sides become progressively closer together from the forward end to the aft end so that the fairing has a tapered shape. The fairing may include a transparent cover 20, a trim 68, and a mount 48 having a base 56 and flanges 58 to which the trim and cover sides may be secured via screws 66. The flanges may differ in height and the base may be inclined or tapered in thickness for mounting on a canted surface of the vehicle. Also claimed individually are a fairing having a mount and a cover with a tapered shape, and a method of assembling a fairing ...

Improvements relating to pile wrappers

A pile wrapper comprises a flexible sheet (2) of parallelogram form with stiff but not completely rigid members (3) along a pair of opposite edges proud of the side of the sheet to be exposed. This side also has flexible ribs or vanes (4) parallel to those members. When wrapped around a pile (1) the members (3) are squeezed and fastened together, forcing those members into a helical configuration, similar to that adopted by the ribs or vanes (4). Water flowing past the pile is diverted towards the longitudinal direction of the pile, reducing the tendency to vortex induced vibration.

Improvements in flow deflecting devices

A translating cowl thrust reverser for a ducted fan gas turbine engine has a fan cowl, the downstream portion of which is translatable axially to open an aperture in the cowl. The aperture has upstream and downstream side-walls and which are curved to deflect fan air flow through the aperture in a forward direction. An annular plate is positioned at the outlet from the aperture and projects into the turbulent flow region on the upstream side-wall to define with the side-wall a recess open to the flow which delays the separation of the flow from the side-wall. This increases the effective area of the outlet and the angle through which the flow is turned thus improving the thrust reverser efficiency to the point at which no cascades are needed in the aperture.

THROTTLE EQUIPMENT FOR A MEDICAL APPARATUS

DEVICE FOR THE SCHUTZEN OF PIPINGS U.DGL. AGAINST WEAR AND STONE BEGINNING

PROCEDURE AND SYSTEM FOR THE PRODUCTION OF A POTENTIAL OVER A BODY

Vortex ring generator

Aeration device for filtration system

An aeration device configured to be fitted to a membrane filtration module having membranes mounted therein. The aeration device comprises a sleeve configured to at least partially surround the membrane filtration module. The sleeve has one end adapted to engage with the membrane filtration module and another end adapted to engage with a filtrate collection conduit or manifold.

Distribution array for use in a settler area of a mixer-settler

A distribution array (10) for use in a settler area (12) of a mixer-settler, the distribution array (10) characterised by: at least one panel (26, 28) of linearly-spaced barrier elements (30), wherein the depth of the barrier elements (30), relative to a length of the settler area (12) in which it is to be positioned, is greater than the spacing between the barrier elements (30), thereby defining a fluid flow channel between adjacent barrier elements (30) that is longer than it is wide.

VORTEX RING GENERATOR

A vortex ring generator (11) adapted to be associated with a body (12) subjected to fluid flow, the vortex ring generator (11) being adapted to produce a fluid flow in the form of a vortex ring with the fluid flow moving over the body from the vortex ring generator (11).

SOLID BODY WITH MICROSTRUCTURED SURFACE

The invention relates to a solid body of plastic, glass, ceramic or metal which has at least partially a microstructured surface with rows oriented in a preferential direction of cross-sectionally trapezoidal or wedge-shaped denticles, characterized in that the denticles have minima and maxima in height (H) which lie in the range from 0 mm to 2 mm, and the minima and maxima follow one another periodically with amplitudes in the range from 0.005 to 20 mm, and the spacing of the rows of neighboring denticles in relation to one another is 0.002 mm to 5 mm, it being possible for the valleys between the rows to be planar, curved or tapered, and the cross-sectionally trapezoidal or wedge-shaped denticles have a wedge angle (.alpha.) in the range from 15 to 75.degree..

AIRFLOW DIVERTER

In a vehicle (10) of the type having an engine (12) and a radiator (14), an airflow diverter (20) is attachable in fluid receiving communication with the radiator. The airflow diverter generally includes a formed foil (22) having an arcuate portion (24), the formed foil, when placed in an airstream (16), is capable of redirecting the airstream from a first direction (32) to at least a second direction (34).

WIND ENERGY TURBINE ROTOR BLADE

The invention relates to a wind turbine rotor blade (1), comprising a top side (13), a bottom side (14), a leading edge (16), a trailing edge (15), a hub fastening means (17), and a blade tip (12), wherein the wind turbine rotor blade (1) is divided into a hub region (111), a center region (112), and a blade tip region (113) and wherein a root region (11) from the hub fastening means (17) to the maximum blade depth (Smax) is defined, wherein an air-conducting channel (23) extending radially outward for conducting suctioned air from a suction region (21) to a blow-out region (22) arranged in the blade tip region (113) is provided inside the wind turbine rotor blade (1) and boundary layer suctioning occurs, wherein the suctioning of the air occurs on the top side (13) of the wind turbine rotor blade (1), and a boundary layer fence (28) is provided in the hub region (111) near the hub fastening means (17) in order to prevent a flow in the direction of the hub fastening means (17).

WIND TURBINE ROTOR BLADE WITH TIP HAVING PLURALITY OF SERRATIONS AT TRAILING EDGE OF ROTOR BLADE TIP

The invention relates to a trailing edge (201) for a rotor blade tip (252) of an aerodynamic rotor (106) of a wind turbine (100). The trailing edge (201) comprises a trailing edge delimiting line (250), which replicates the contour of the trailing edge (201), and multiple serrations (255) to improve flow behaviour at the trailing edge (201). The serrations (255) are provided at the trailing edge (201) in dependence on the trailing edge delimiting line (250), and consequently on geometrical and operating parameters.

TURBOFAN GAS TURBINE ENGINE AND NACELLE ARRANGEMENT

The arrangement comprises a fan by-pass duct (32) located within the nacelle (34) and having an inlet (32a) and an outlet (32b). The outlet (32b) is generally oriented substantially radially and at an intermediary location along the nacelle (34). The nacelle (34) has an aft section with an initially convex and substantially outwardly extending surface (34a) adjacent to the outlet (32b) of the fan by-pass duct (32). The surface (34b) of the aft section decreases in curvature and becomes concave towards a rear end of the engine.

SYSTEM AND METHOD FOR AERODYNAMIC FLOW CONTROL

A vortex generator system comprises one or more plasma streamwise vortex generators (PSVGs) or plasma wedge vortex generators (PWVGs). The PSVGs and PWVGs each comprises a first electrode and a second electrode separated by a dielectric layer. The first electrode extends in a longitudinal direction. The PSVGs and PWVGs can be installed on a surface arranged to receive airflow in a certain flow direction. The PSVGs have a rectangular first electrode is exposed and extends at least somewhat parallel to the expected flow direction, whereas the first electrode of the PWVGs is more triangular in shape. When an AC voltage is applied to the first and second electrodes, a plasma forms along edges of the first electrode. The plasma imposes a body force in a cross-flow direction, which induces a cross-flow velocity that, in combination with the mean flow, produces streamwise-oriented counter-rotating vortices.

VEHICLE EXTERNAL COMPONENT HAVING REDUCED VORTEX SHEDDING

A windshield wiper arm is provided on an outside of an aircraft and positioned to directly engage an air flow while the aircraft is traveling. The wiper arm includes an arm portion coupled to the aircraft and having an arm exterior surface, the arm portion extending along an arm axis and defining an arm length. A bead extends outwardly from the arm exterior surface and defines a bead exterior surface, the bead being sized sufficiently to engage a boundary layer of the air flow. A wiper blade is coupled to the arm portion. The bead prevents separation of the boundary layer from the arm exterior surface, thereby to attenuate shedding of vortices and associated vibrations and noise.

METHOD FOR MOUNTING A VORTEX GENERATOR AND MOUNTING APPARATUS FOR CARRYING OUT THE METHOD

The invention relates to a method for securing an attachment (3, 33) to a component, in particular a rotor blade (1), in which the component is provided with an adhesion surface (36), the attachment (3, 33) is provided with a corresponding adhesion surface (9), the attachment (3, 33) is provided with an adhesive-conveying connection to the corresponding adhesion surface (9), the adhesion surface (36) is placed on the corresponding adhesion surface (9), a gap (53) is formed between the adhesion surface (36) and the corresponding adhesion surface (9), the attachment (3, 33) is pressed against the corresponding adhesion surface (9) and at the same time the adhesive (80) is injected into the gap (53) through the adhesive-conveying connection.

ANTI-VORTEX SHEDDING GENERATOR FOR APU SUPPORT

An assembly for use with a power-producing unit includes an annular case, a hub positioned radially inward of the case, a fluidic flow path defined between the case and the hub, a plurality of support tubes each extending between the case and the hub, and a flow modifying structure positioned on an exterior surface of at least a first one of the support tubes and configured to reduce vortex shedding of a passing fluid.

ORTHOTROPIC BIMORPH FOR IMPROVED PERFORMANCE SYNTHETIC JET

Piezoelectric actuators for synthetic jets and other devices are disclosed having orthotropic piezoelectric bimorphs with increased out-of-plane displacements for greater responsiveness to applied electric fields. In some embodiments, the piezoelectric actuators may include interdigitated electrodes applied to a surface of a piezoelectric plate to produce greater in-plane strains in the plate and greater out-of-plane displacements of a flexible diaphragm of the synthetic jet. In other embodiments, the actuator includes an orthotropic piezoceramic plate having a greater d coupling coefficient in one in-plane direction and in the other in-plane direction to cause desired diaphragm out-of-plane displacements when an electric field is applied by electrodes.

REPAIR METHOD FOR VORTEX GENERATOR AND KIT FOR IT

A method for repairing a vortex generator which projects from an outer skin of a rotor blade is disclosed, the vortex generator tip of which is broken off and leaves behind a vortex generator stub on the rotor blade outer skin, by the vortex generator stub being ground down and a vortex generator crown being fitted onto the ground-down vortex generator stub. A repair kit with a vortex generator crown and a template is also disclosed. The vortex generator crown has an external contour which is matched to a vortex generator tip, and with a socket which is matched to a ground-down vortex generator stub, and wherein the template has a sleeve-like interior space which is complementarily matched to a ground-down vortex generator stub, with a large rotor blade-side opening and a small rotor blade rear-side opening, and the template is designed for fitting onto the broken-off vortex generator stub.

LIFT ENHANCING TIP VORTEX GENERATION TECHNOLOGY

Methods for using tip generated vortices to improve performance of foils. These methods include generating a substantially streamwise beneficial vortex (74) near the outboard end (60) of a foil (82). This beneficial vortex (74) spins in the opposite direction of an induced drag vortex (62), and is used to create an upwash field (76) which neutralizes induced drag by deflecting the flow behind the trailing edge (56) at an upward angle. Upwash field (76) causes the lift vector (118) on the foil (82) to tilt forward, thereby creating a forward directed force of induced thrust upon the foil (82). Beneficial vortex (74) is also used to contain and compress the high pressure field existing along the attacking surface of the foil (82), and displace the induced drag vortex (62) inboard from the tip of the foil (82). Numerous performance parameters are improved dramatically by using beneficial vortex (74), as well as by using a double vortex pattern (124). Methods for creating, using, and controlling ...

Способ снижения сопротивления летательного аппарата

Способ снижения сопротивления летательного аппарата путем подачи газа в окружающее пространство из носовой части вперед в виде струи с давлением, выше давления окружающей среды,отличающийся тем, что используют струю высокотемпературного газа высокого давления для разрезания набегающего уплотненного воздушного потока и создания вакуумного тоннеля, диаметр которой составляет не более 0,01 диаметра передней оконечности летательного аппарата.

RING VORTEX GENERATOR

DEVICE Of TIP Of WING, BLADE Of WIND MILL OR HYDROLIENNE ALLOWING TO EVEN DECREASE TO CANCEL the MARGINAL SWIRLS SAID VORTEX

Fluid resistance reducing method and resistance reducing propulsion device

A fluid resistance reducing method and a resistance reducing propulsion device are disclosed, wherein vane-shaped devices are inserted in the fluid at a certain interval along a vertical direction to a moving velocity direction of the fluid, and thus the fluid is divided into several limited zones to limit the fluid and solidify moving state; resultantly the fluid is prevented from directly crashing with fixed wall of a surface of an object to be resistance-reduced and thus a moving velocity direction of the vane-shaped device accords with a predetermined direction of a tangent line of the fixed wall and reaction force on the fluid provides a centripetal force for the fluid to turn, so as to force the fluid to gradually change the velocity direction along the fixed wall and manually intervene with parts of the object to force the fluid near a boundary face to moves stratifiedly and orderly.

Marine riser adjustable buoyancy modules

A marine riser includes one or more buoyancy modules running along a length of the marine riser, wherein the one or more buoyancy modules are molded such that an umbilical may be secured along a length of the one or more buoyancy modules.

Vortex-induced vibration suppression device and mating collar system

A system including a votex-induced vibration (VIV) suppression device dimensioned to suppress a vortex induced vibration of a support structure, the VIV suppression device having a base portion that encircles at least a portion of the support structure and a support member formed along the base portion. The system further including a collar having a body portion defining an annular channel and a flange portion extending outwardly from the annular channel, the flange portion dimensioned to form a receiving channel around the support structure for receiving the support member. The support member is received within the receiving channel to secure the VIV suppression device to the support structure and the VIV suppression device is capable of rotating around the support structure along the receiving channel.

RISER SUPPORT

Apparatus and method for supporting a riser are disclosed. The apparatus includes an anchoring element () for anchoring a riser to a fixed structure, and a supporting portion () configured to support a section of flexible pipe (), the supporting portion having a bearing surface for the section of flexible pipe to bear against to thereby restrain the flexible pipe from upward movement. 1. An apparatus for supporting a riser comprising at least one segment of flexible pipe , the apparatus comprising:an anchoring element for anchoring a riser to a fixed structure; anda supporting portion configured to support a section of flexible pipe, the supporting portion having a bearing surface for the section of flexible pipe to bear against to thereby restrain the flexible pipe from upward movement.2. The apparatus as claimed in claim 1 , wherein the supporting portion is configured to support the one or more sections of flexible pipe in a substantially U-shaped or substantially V-shaped configuration.3. The apparatus as claimed in claim 1 , wherein the supporting portion is configured to support the one or more sections of flexible pipe at an under side of the supporting portion claim 1 , in use.4. The apparatus as claimed in claim 1 , wherein the supporting portion has a substantially U-shaped or substantially V-shaped configuration.5. The apparatus as claimed in claim 1 , wherein the supporting portion has a curved surface.6. The apparatus as claimed in claim 1 , wherein the supporting portion is a V-shaped connector.7. The apparatus as claimed in claim 1 , wherein the tethering element is at least partly flexible.8. A riser assembly for transporting fluids from a sub-sea location claim 1 , comprising:a riser comprising at least one segment of flexible pipe;a support apparatus for supporting at least a portion of the flexible pipe, the support apparatus comprising a supporting portion having a bearing surface for the portion of flexible pipe to bear against to thereby ...

WATER INTAKE RISER ASSEMBLY FOR AN OFF-SHORE STRUCTURE, AND METHOD OF PRODUCING A LIQUEFIED HYDROCARBON STREAM AND METHOD OF PRODUCING A VAPOROUS HYDROCARBON STREAM

A water intake assembly () is suspendable from an off-shore structure () is proposed. It has a bundle () of at least a first tubular conduit (A) and a second tubular conduit (B) generally stretching side by side along a length direction. At least a part of the distal portion () of the first tubular conduit extends further in the length direction than the second tubular conduit when in fully suspended condition. Described used of such a water intake riser assembly include: a method of producing a liquefied hydrocarbon stream and a method of producing a vaporous hydrocarbon steam. 1. A water intake riser assembly that is suspendable from an off-shore structure , comprising a bundle of at least a first tubular conduit and a second tubular conduit generally stretching side by side along a length direction , each comprising , seen in the length direction , a proximal portion comprising suspension means , followed by a connecting portion , followed by a distal portion comprising a water-intake section , said distal portion extending between a first distal end and the connecting portion of the respective tubular conduit , said connecting portion fluidly connecting the proximal portion and the distal portion , the first and second tubular conduits being laterally connected to each other by means of at least one spacer cooperating with the respective connecting portions , wherein at least a part of the distal portion of the first tubular conduit extends further in the length direction than the second tubular conduit when in fully suspended condition.2. The water intake riser assembly of claim 1 , wherein the distal portion in the first tubular conduit extends between a first distal end and the connecting portion of the first tubular conduit over a length L claim 1 , and wherein the distal portion in the second tubular conduit extends between a second distal end and the connecting portion of the second tubular conduit over a length L claim 1 , wherein the first distal end ...

INSTRUMENTED STRAKES AND FAIRINGS FOR SUBSEA RISER AND PIPELINE MONITORING

A VIV suppression device for a subsea riser system includes either a strake or fairing element having at least one fiber optic sensor mounted on the element. The fiber optic sensor on each VIV suppression device associated with the riser includes a plurality of sensor components forming an array, and wherein each fiber optic sensor component in the array produces a sensor component signal. The multiple array signals are combined at a multiplexer associated with that specific array for generating a single VIV suppression device sensor signal. Each fiber optic sensor array produces a unique sensor signal, the subsea riser system further including a multiplexer for combining the unique sensor signals from the fiber optic sensor array for each of the VIV suppression devices, for producing a single cables combined sensor signal to be introduced into the processor. The processed output signal produced by the processor is introduced to a monitor for real time, or near real time monitoring of the processed signal. A database is also associated with the processor for storing the processed signal produced by the processor, for records and for review. Typically, the system will be in communication with a transmission system associated with the processor for transmitting the processed signal to a remote location. 1. A VIV suppression device for a subsea riser system , the VIV suppression device comprising:a. An element mounted external of and secured to the riser;b. At least one sensor mounted in the vicinity of the element, the sensor including an output cable for transmission of a sensor signal produced by the sensor; andc. A processor for receiving the sensor signal, for producing a processed signal.2. The VIV suppression device of claim 1 , wherein said sensor is a fiber optic sensor.3. The VIV suppression device of claim 1 , wherein the sensor is a data logger.4. The VIV suppression device of claim 1 , wherein the element is a strake.5. The VIV suppression device of claim ...

Curvature Limiter For A Flexible Undersea Line, And Seabed-To-Surface Linking Equipment Including Same

The present invention relates to a curvature limiter device constituted by fastening tubular sleeves () end-to-end, the tubular sleeves being fitted at their longitudinal ends with fastener-and-hinge devices () on their top faces and with bottom abutments () diametrically opposite on their bottom faces. The present invention also provides a bottom-to-surface connection installation between undersea equipment such as an undersea well head or the end of an undersea pipe resting on the sea bottom () and a floating support () on the surface, the installation comprising an undersea flexible line () having its curvature controlled by a said curvature limiter device () of the invention, said curvature limiter device being arranged at an intermediate depth between the sea bottom () and the surface (). 10112211122112211222112216. A curvature limiter device forming a tubular member suitable for adopting a rectilinear position or variable curvature while preventing a radius of curvature that is less than a given minimum radius of curvature (R) and thus authorizing a flexible line threaded inside said tubular member to take up a controlled variable degree of curvature or no curvature , said tubular member comprising a plurality of tubular sleeves arranged end-to-end at their longitudinal ends , preferably at least three sleeves , more preferably three to nine sleeves , the device being characterized in that said sleeves are fastened to one another by fastener-and-hinge pivot devices arranged on the top face of each of said sleeves , at their longitudinal ends , said fastener-and-hinge pivot devices allowing the longitudinal axis XX′ , XX′ of a first sleeve (N) to pivot relative to the longitudinal axis XX′ , XX′ of a second sleeve (N+) fastened to said first sleeve by means of said fastener-and-hinge device said pivoting taking place about a hinge axis YY′ , YY′ , YY′ perpendicular to said two longitudinal axes XX′ , XX′ , XX′ of said first and second sleeves , the two hinge ...

Drilling Riser Retrieval in High Current

The disclosure is directed to a method for retrieving a drilling riser connected to a blow-out-preventer (BOP) located on a sea bed. The method includes the steps of: a) attaching the first end of the retrieval line to a vessel; b) attaching the second end of the retrieval line to a drilling riser; c) disconnecting the riser from the BOP; d) initiating the assent of the disconnected riser from the sea bed; e) maintaining tension on the riser as it ascends to the sea surface by creating a horizontal load that is opposite to a current load on a bottom end of the riser; f) releasing tension on the retrieval line as the riser approaches the bottom of the drilling vessel; and/or g) disconnecting the retrieval line from the riser, whereby the riser is pulled through the bottom opening in the drilling vessel. 1. A method for retrieving a drilling riser connected to a blow-out-preventer (BOP) located on a sea bed using a retrieval line having first and second ends , wherein the drilling riser is connected to a moored and/or dynamically-positioned drilling vessel having a bottom opening , the method comprising the steps of:a) attaching the first end of the retrieval line to a vessel;b) attaching the second end of the retrieval line to a drilling riser;c) disconnecting the riser from the BOP;d) initiating the assent of the disconnected riser from the sea bed;e) maintaining tension on the riser as it ascends to the sea surface by creating a horizontal load that is opposite to a current load on a bottom end of the riser;f) releasing tension on the retrieval line as the riser approaches the bottom of the drilling vessel; andg) disconnecting the retrieval line from the riser, whereby the riser is pulled through the bottom opening in the drilling vessel.2. The method of claim 1 , wherein the riser is disconnected from the BOP prior to attaching the second end of the retrieval line to the drilling riser.3. The method of claim 1 , wherein the riser is disconnected from the BOP after ...

STRAKES FOR UTILITY STRUCTURES

A modular strake for reducing the effects of wind on utility structures is disclosed. The strake is comprised of individual fin sections that may easily be attached to a utility structure, preferably in a triple helix pattern. The modular strakes may be installed on a utility structure after is has been placed into service. 1. An apparatus for reducing vortex-induced vibrations on a utility structure comprising:a. a first fin section configured to partially surround the perimeter of the utility structure, said first fin section comprising a strip of sheet metal that extends outward from said utility structure; and 'wherein said first fin section and said second fin section are attached at a point where said first fin section and said second fin section overlap.', 'b. a second fin section configured to partially surround the perimeter of the utility structure, said second fin section comprising a strip of sheet metal that extends outward from said utility structure;'}2. The apparatus of wherein said first fin section and said second fin section are attached by welding.3. The apparatus of wherein said first fin section includes a protruding tab configured to overlap with said second fin section.4. The apparatus of wherein said second fin section includes a protruding tab configured to overlap with said first fin section.5. The apparatus of further comprising a first clip for attaching said first fin section to said utility structure and said second clip for attaching said second fin structure.6. The apparatus of wherein said first clip and said second clip are each made of metal.7. The apparatus of wherein said first fin section and said second fin section are made of self-weathering steel.8. The apparatus of wherein said first fin section and said second fin section are made of galvanized steel.9. A method for attaching a strake on a utility structure comprising:a. positioning a first clip and a second clip to the perimeter of said utility structure;b. securing said ...

RISER

A riser and a method for reducing the risk of failure of a riser system comprising a riser () arranged between an installation and a subsea well the riser () having a bore () for conveying fluids therebetween, the method comprising the step of providing at least one vortex shedding member () in said bore () of said riser () and flowing the fluid between the subsea well and the installation. 1. A method for reducing the risk of failure of a riser system comprising a riser arranged between an installation and a subsea well , the riser having a bore for conveying fluids therebetween , the method comprising:providing at least one vortex shedding member in said bore of said riser; andflowing the fluids between the subsea well and the installation.2. The method in accordance with claim 1 , further comprising deploying said at least one vortex shedding member into the bore while the riser remains installed on said subsea well.3. The method in accordance with claim 2 , wherein said at least one vortex shedding member comprises a coil biased against an inner surface of said riser.4. The method in accordance with claim 3 , wherein the deploying the at least one vortex shedding member is carried out by unfurling the coil in the bore.5. The method in accordance with claim 3 , wherein the deploying the at least one vortex shedding member is carried out by unfurling the coil in the bore with a constant pitch.6. The method in accordance with claim 3 , further comprising dragging said coil through said bore to install the at least one vortex member in said bore.7. The method in accordance with claim 6 , wherein the dragging said coil through said bore is carried out using a coiled tubing injector.8. The method in accordance with claim 1 , wherein the at least one vortex shedding member comprises a tube filled with fluid claim 1 , the method further comprising monitoring the fluid in the tube to assess integrity of the at least one vortex shedding member.9. A riser claim 1 , ...

METHOD FOR PROTECTING SUBMARINE CABLE AND SUBMARINE LONG TUBE

At a location where a submarine cable is to be installed, the condition of a seabed and the condition of tidal currents near the seabed are investigated in advance to examine the number of filter units and the position where the filter units are to be installed. First, the submarine cable is installed on the seabed . Then, the filter units are installed so as to cover the submarine cable installed on the seabed 1. A method for protecting submarine cables , long tubes or pipelines , comprising the steps of:installing bag-shaped filter units, each containing predetermined block objects, so as to cover the submarine cables, long tubes or pipelines on a seabed,wherein the filter unit comprises a bag body knitted with synthetic fiber yarn, anda predetermined amount of the block objects is determined so that the porosity of knitted fabric is between 45% and 90% in order to reduce the dragging force of water flowing through the bag body.2. The method according to claim 1 , whereinsaid step of installing said filter units includes the step of locating a position where said filter units are to be installed, by using a GPS. 1. Field of the InventionThe present invention relates to methods for protecting a submarine long object including a submarine cable and a submarine long tube.2. Description of the Background ArtFor example, electrical power generated by an offshore wind power generation system is transmitted via a cable connected between the offshore wind power generation system and a land-based ground system. More specifically, a cable is provided so as to extend along the seabed between the wind power generation system and the ground system. Protection of such a cable extending along the seabed (hereinafter referred to as the “submarine cable”) is disclosed in, e.g., Japanese Patent Publication No. 2007-288991 of unexamined applications. In Japanese Patent Publication No. 2007-288991 of unexamined applications, mattress blocks are used to protect the submarine cable. In ...

Subsea Conduit System

A subsea conduit system comprises a conduit extending between a surface vessel and a subsea support, and a load arrangement connected between a subsea anchor and the conduit at a region of connection which is intermediate the vessel and the subsea support to apply a force on the conduit. The conduit is configured such that the applied force generates axial tension in the conduit between the region of connection and the vessel, and between the region of connection and the subsea support. 1. A subsea riser system comprising:a conduit extending between a surface vessel and a subsea support, wherein the surface vessel and subsea support are subject to relative motion therebetween; anda load arrangement connected between a subsea anchor and the conduit at a region of connection which is intermediate the vessel and the subsea support to tether the conduit to the subsea anchor and to generate axial tension in the conduit between the region of connection and the vessel, and between the region of connection and the subsea support.2. The system according to claim 1 , wherein the force applied by the load arrangement is aligned axially relative to the conduit.3. The system according to claim 1 , wherein the force applied by the load arrangement is aligned laterally relative to the conduit.4. The system according to claim 1 , wherein the load arrangement modifies the dynamic response of the conduit to dynamic service loading relative to an unloaded conduit.5. The system according to claim 1 , wherein the conduit extends continuously upwards between the region of connection with the load arrangement and the vessel.6. The system according to claim 1 , wherein the conduit extends continuously downwards between the region of connection with the load arrangement and the subsea support.7. The system according to claim 1 , wherein the conduit extends between the vessel and subsea support in a catenary form to define a catenary riser system.8. The system according to claim 1 , wherein ...

Riser Tensioner Frame Assembly

A riser tensioner for maintaining a tensile force on a riser extending through an opening in a deck of a floating platform includes a frame assembly that may be quickly bolted together in the field. The frame assembly includes a plurality of tensioner legs that may be installed on an un-level deck yet still provide a level support of the riser. Lower leg mounting assemblies include a slip ring for mounting directly to the deck and a deck mounting member received in the slip ring at a variable angle and having an upwardly extending shaft passing into a bore in a lower end of a tensioner leg. 1. A tensioner frame assembly for transferring loads from a riser extending from a subsea wellhead assembly through an opening in a deck of a floating platform to the deck of the floating platform , the tensioner frame assembly comprising:a support ring;a plurality of cylinder mounting assemblies coupled to the support ring and operable to couple a riser tensioner to the support ring;a plurality of tensioner legs, each tensioner leg of the plurality of tensioner legs having an upper end coupled to the support ring and a lower end for mounting to the deck, the lower end of each tensioner leg of the plurality of tensioner legs having a bore disposed therein; anda plurality of lower leg mounting assemblies, each lower leg mounting assembly of the plurality of lower leg mounting assemblies adapted to be mounted directly to the deck and including an upwardly extending shaft passing through the bore disposed in the lower end of a respective tensioner leg.2. The tensioner frame assembly of claim 1 , wherein each lower leg mounting assembly of the plurality of lower leg mounting assemblies comprises:a slip ring defining an inner diameter surface and including a lower surface for mounting directly to the deck; anda deck mounting member including a lower surface and an upper surface from which the upwardly extending shaft extends, the lower surface received in the slip ring such that the ...

SELF ADJUSTING DETURBULATOR ENHANCED FLAP AND WIND DEFLECTOR

A self adjusting flap is disclosed. The self adjusting flap comprises a solid body including a hinge. The flap includes a flexible skin stretched across an array of equi-spaced ridges on a convex surface of the hinged solid body, such that lift and drag forces due to fluid flow across it causes the flap to rotate about the hinge and automatically orient itself to minimize flow losses through turbulence while shielding objects downstream from flow induced drag. 1. A self adjusting flap comprising:a solid body including a hinge; anda flexible skin stretched across an array of equi-spaced ridges on the convex surface of a hinged solid body, such that lift and drag forces due to fluid flow across it causes the self adjusting flap to rotate about the hinge and automatically orient itself to minimize flow losses through turbulence while shielding objects downstream from flow induced drag.2. The self adjusting flap of claim 1 , wherein the hinge is a deflectable solid member which provides a restoring moment so as to hold the self adjusting flap at a desired orientation while allowing adjustments with changes in the fluid flow over it.3. The self adjusting flap of claim 1 , wherein the self adjusting flap is part of a wind deflector attached to a vehicle so as to minimize aerodynamic drag of the vehicle by diverting flow away from un-streamlined components while attenuating turbulent losses.4. The self adjusting flap of claim 2 , wherein the self adjusting flap is part of a wind deflector attached to a vehicle so as to minimize aerodynamic drag of the vehicle by diverting flow away from un-streamlined components while attenuating turbulent losses.5. The self adjusting flap of claim 1 , wherein the vehicle comprises any of a car claim 1 , truck or train.6. The self adjusting flap of claim 2 , wherein the vehicle comprises any of a car claim 2 , truck or train.7. The self adjusting flap of claim 1 , wherein the self adjusting flap is attached to an airfoil claim 1 , wing or ...

IMPROVED INNER DRILLING RISER TIE-BACK INTERNAL CONNECTOR

Systems and methods for coupling a platform to a subsea wellhead are provided. The systems may include a riser extending between the platform and the subsea wellhead. The systems may further include an inner drilling riser tie-back connector (“ITBC”) coupled to an inner riser and having an outer body and an inner body. The inner body is at least partially disposed within the outer body, and the inner body is translatable along a longitudinal axis of the ITBC between a first unlocked position and a second locked position. The systems may additionally include a locking mechanism for the ITBC. 1. A system for coupling a platform to a subsea wellhead comprising:a riser extending between the platform and the subsea wellhead, wherein the riser comprises an inner riser and an outer riser; and an outer body;', 'an inner body at least partially disposed within the outer body, wherein the inner body is translatable through the outer body along a longitudinal axis of the ITBC between a first unlocked position and a second locked position; and', 'a locking mechanism comprising a first threaded ring disposed about an outer circumference of the inner body and a second threaded ring disposed along an inner circumference of the outer body, wherein the second threaded ring comprises a series of teeth extending along an outer circumference of the second threaded ring and the outer body comprises a series of corresponding and complementary alterating teeth extending along an inner circumference of the outer body., 'an inner drilling riser tie-back connector (ITBC) coupled to the inner riser, wherein the ITBC comprises2. The system of claim 1 , wherein in the first unlocked position the first threaded ring and second threaded ring are not engaged.3. The system of claim 1 , wherein in the second locked position the first threaded ring and the second threaded ring are engaged and the series of teeth extending along the outer circumference of the second threaded ring and the corresponding ...

Protecting Subsea Structures

A protective cover for a subsea elongate element, such as a pipeline, has an open end and a barrier attached to a cover to extend across and close an open end. The barrier is flexible to conform to and surround an elongate element extending from under the cover and protruding through the barrier. This prevents rocks of a rock berm from getting under the cover through the open end. 2. The cover of claim 1 , wherein the barrier comprises at least one drapable sheet claim 1 , net or mesh attached to the cover around the open end.3. The cover of claim 1 , wherein the barrier comprises at least one curtain of fingers extending across the open end.4. The cover of claim 1 , wherein the barrier extends beyond a boundary of the open end to define an anchor portion of the barrier claim 1 , which anchor portion is arranged to lie on an area of seabed adjacent to the open end.5. A subsea installation comprising the cover of any of in combination with an elongate element that extends along and is protected under the cover and that protrudes through the barrier.6. The installation of claim 5 , further comprising a rock berm atop or beside the cover claim 5 , which berm extends onto an anchor portion of the barrier that lies on an area of seabed adjacent to the open end.7. A method of protecting a subsea elongate element claim 5 , comprising:installing a protective cover on the seabed over the element pre-installed on the seabed, with the element protruding from an open end of the cover; andconforming a flexible barrier with the element protruding through the barrier, the barrier surrounding the element and closing the open end of the cover.8. The method of claim 7 , comprising placing a rock berm atop or beside the cover claim 7 , the rock berm extending onto an anchor portion of the barrier that lies on an area of seabed adjacent to the open end.9. The method of claim 7 , comprising allowing the element to move laterally under the cover while the flexible barrier continues to ...

FIRE-FIGHTING DEVICE

A fire-fighting device can cool a vertical wall where a horizontally-extending profiled element is disposed on the vertical wall. The fire-fighting device may comprise a guide plate that includes a first region arranged above the horizontally-extending profiled element, a second region arranged below the horizontally-extending profiled element, a third region arranged in a plane of the horizontally-extending profiled element and on a side of the horizontally-extending profiled element facing away from the vertical wall, and a fourth region in the second region. The guide plate may have a distance to the wall of mm to mm in the fourth region. 18-. (canceled)9. A fire-fighting device for cooling a vertical wall wherein a horizontally-extending profiled element is disposed on the vertical wall , the fire-fighting device comprising a guide plate that includes a first region disposed above the horizontally-extending profiled element , a second region disposed below the horizontally-extending profiled element , a third region disposed in a plane of the horizontally-extending profiled element and on a side of the horizontally-extending profiled element facing away from the vertical wall , and a fourth region disposed in the second region , wherein in the fourth region the guide plate has a distance to the vertical wall of 1 mm to 20 mm.10. The fire-fighting device of wherein in the fourth region the guide plate has a distance to the vertical wall of 2 mm to 10 mm.11. The fire-fighting device of wherein in the fourth region the guide plate has a distance to the vertical wall of 2.5 mm to 5 mm.12. The fire-fighting device of wherein the guide plate forms a closed area between the first region and the second region.13. The fire-fighting device of wherein the guide plate comprises steel.14. The fire-fighting device of wherein the vertical wall is a bulkhead.15. The fire-fighting device of wherein the horizontally-extending profiled element is at least one of a bead profile or ...

PROTECTION APPARATUS

Protection apparatus for a flexible elongate member. The apparatus comprises a plurality of protection members Each protection member defines an opening through which a flexible elongate member can extend. Each protection member is interconnectable end to end with other such protection members to provide protection along the length of an elongate member. Each protection member comprises two parts which are mountable together to define the opening through which an elongate member can extend. The two parts together form a female formation at one end, and a male formation at the other end, such that the female formation can receive a male formation on an adjacent protection member to interconnect the adjacent projection members The female and male formations are configured to permit a predetermined amount of relative pivotal movement between adjacent protection members 1. Protection apparatus for a flexible elongate member , the apparatus comprising a plurality of protection members , each protection member defining an opening through which a flexible elongate member can extend , with each protection member being interconnectable end to end with other such protection members to provide protection along the length of an elongate member , each protection member comprising two parts which are mountable together to define the opening through which an elongate member can extend , with the two parts together forming a female formation at one end , and a male formation at the other end , such that the female formation can receive a male formation on an adjacent protection member to interconnect the adjacent projection members , with the male and female formations being configured to permit a predetermined amount of relative pivotal movement between adjacent protection members.2. Protection apparatus according to claim 1 , wherein the two parts of the protection member are at least generally identical.3. (canceled)4. Protection apparatus according to claim 1 , wherein the male ...

METAL-TO-COMPOSITE INTERFACES

The invention relates to improved metal/composite interfaces, particularly for risers used in offshore oil and gas production to connect a subsea oil well to a surface drilling/production facility. The invention provides a composite hoop structure configured to a bearing surface of a metal groove of metal liner over which axial fibers are laid. The composite hoop structure provides for improved transition of axial, torsional and compressive forces between composite fibers and metal surfaces of the metal liner. 1. A composite riser having a metal/composite interface comprising:a tubular metal liner comprising at least one tubular metal end connected to the tubular metal liner, the tubular metal end having at least one external groove having at least one bearing surface, and a base surface;a composite hoop structure within the at least one external groove and configured against the at least one bearing surface;a plurality of axial fibers laid over the composite hoop structure and the base surface, the axial fibers being secured by at least one layer of hoop fibers wound over the axial fibers within the external groove.2. A composite riser as in claim 1 , further comprising multiple layers of alternating axial and helical fiber layers claim 1 , axial and hoop fiber layers or combinations of axial and helical and hoop fiber layers set over the composite hoop structure.3. A composite riser as in claim 1 , wherein the at least one external groove has a volume defined by the bearing surface claim 1 , the base surface claim 1 , an outer surface and a wall surface and wherein the composite hoop structure fills 10-25% of the volume.4. A composite riser as in claim 2 , wherein the at least one external groove has a volume defined by the bearing surface claim 2 , the base surface claim 2 , an outer surface and a wall surface and wherein the composite hoop structure fills 10-25% of the volume.5. A composite riser as in claim 3 , wherein the composite hoop structure fills 10-15% ...

Hexagonet

An innovative hexagonet provides a unique surface structure to achieve optimal tribological performance of any solid objects. The hexagonet comprises fractal hexagons and each fractal hexagon include regular hexagons in fractal form that can reduce friction and improve interactions of an object with any other objects and environment, thereby increasing the performance and reliability of the object by increasing balance and consistency in motion and at rest. Once integrated to the object, the hexagonet can form a protective surface which is repellent to other matter, thus, providing slippery, anti-fouling and anti-bacterial properties. Additionally, the protective surface creates a tribological effect which significantly reduces heat and disturbance, contamination and wear and tear resulting in reduction of energy consumption of the object. Further, the versatile and effective hexagonet can provide various applications to the object in solid-to-solid, solid-to-liquid, solid-to-air interactions, etc. 1. A hexagonet for providing optimal surface tribology comprising:at least one fractal hexagon;a solid object;each fractal hexagon being exteriorly positioned on the solid object; andeach fractal hexagon comprising a plurality of hexagons.2. The hexagonet for providing optimal surface tribology comprising as claimed in comprising:the plurality of hexagons comprising concentric hexagons.3. The hexagonet for providing optimal surface tribology comprising as claimed in comprising:the plurality of hexagons comprising nonconcentric hexagons.4. The hexagonet for providing optimal surface tribology comprising as claimed in comprising:the each of the plurality of hexagons comprising an outermost hexagon and an innermost hexagon;the outermost hexagon of the plurality of hexagons being positioned flush with exterior surface of the solid object; andthe innermost hexagon of the plurality of hexagons being interiorly positioned in the solid object.5. The hexagonet for providing ...

Microelectronic module, module array, and method for influencing a flow

A microelectronic module for influencing a flow of a fluid is provided. The module comprises at least one voltage converter for converting a provided first voltage into a higher, lower, or identical second voltage. The module also comprises at least one active flow-influencing element for influencing the direction and/or the speed of a fluid which is flowing around and/or over the flow-influencing element. At least the voltage converter and the active flow-influencing element are disposed on a thin-film, planar substrate. The influencing of the direction and/or the speed of the fluid is dependent on a hydrodynamic acceleration as a function of the second voltage provided by the voltage converter at the flow-influencing element.

VISCOUS DRAG REDUCTION APPARATUS FOR VEHICLES

Described herein are a viscous drag reduction apparatus and a method. The apparatus includes a pair of rollers connected to a supporting surface on a roof of the vehicle, a belt having a frictional surface and partially wrapped around the pair of rollers, such that the pair of rollers allow the belt to rotate in response to an air flow generated around the vehicle when the vehicle is in motion, the pair of rollers having a length in an axial direction that is at least as long as a width of the belt, an assembly of the pair of rollers and the belt being at least partially recessed with respect to a top line of the roof, and a reverse flow cover connected to the front end of the roof of the vehicle to block an air back flow generated by the belt when rotating. 1. A viscous drag reduction apparatus for a vehicle comprising:a pair of rollers connected to a supporting surface on a roof of the vehicle;a belt having a frictional surface and partially wrapped around the pair of rollers, such that the pair of rollers allow the belt to rotate in response to an air flow generated around the vehicle when the vehicle is in motion, the pair of rollers having a length in an axial direction that is at least as long as a width of the belt, an assembly of the pair of rollers and the belt being at least partially recessed with respect to a top line of the roof; anda reverse flow cover connected to the supporting surface of the roof of the vehicle and extending to a top of the belt so as to block an air back flow generated by the belt when rotating, the shape of the reverse flow cover being angled at less than 90 degrees with respect to supporting surface and tilting in a backward direction with respect to a moving direction of the vehicle.2. The apparatus according to claim 1 , wherein the supporting surface is an inset portion of the roof of the vehicle claim 1 , the supporting surface being lower than an apex of a leading edge of the roof claim 1 , where the leading edge is at a ...

Flow Guider and Devices with the Same

A flow guider has a guiding body, a blade edge and two tips. The guiding body has two guiding surfaces configured symmetrically with each other. Each guiding surface is convex. The blade edge is curved, is formed between and connects the guiding surfaces and has two opposite ends. The tips are formed respectively at the ends of the blade edge and each tip merges the guiding surfaces and one end of the blade edge. The flow guider divides and guides oncoming airflow or waterflow to smoothly pass across the flow guider with reduced turbulence so that vehicles or bridge piers mounted with the flow guiders suffer less vibration, shaking and damage when encountering airflow or waterflow. 1. A flow guider comprising: two opposite guiding surfaces configured symmetrically with each other, and each guiding surface being convex;', 'a blade edge being curved, formed between and connecting the guiding surfaces and having two opposite ends; and', 'two tips formed respectively at the ends of the blade edge and each tip merging the guiding surfaces and one end of the blade edge., 'a guiding body having'}2. The flow guider as claimed in claim 1 , whereinthe guiding body is fin-shaped when observed from a left or right side view and is leaf-shaped when observed from a top view; andwhen the guiding body is observed from the left or right side view, the blade edge is hill-like with an intermediate raised section and two outer sloping sections extending from the intermediating raised section.3. The flow guider as claimed in further comprising a mounting plate attached to the guiding body and having multiple assembling holes defined through the mounting plate.4. A land vehicle comprising:a sheet metal; and two opposite guiding surfaces configured symmetrically with each other, and each guiding surface being convex;', 'a blade edge being curved, formed between and connecting the guiding surfaces and having two opposite ends; and, 'multiple flow guiders mounted on the sheet metal and each ...

METHODS AND APPARATUS FOR ARRESTING FAILURES IN SUBMERGED PIPELINES

A packer apparatus includes a spindle including a pressure plate disposed adjacent a first end of the packer apparatus, a first end cap defining the second end of the packer apparatus; a seal plate disposed between the pressure plate and the first end cap; a mandrel and a brake disposed between the pressure and seal plates, and an elastomeric expansion boot disposed between the seal plate and the first end cap. The mandrel includes a tapered outer surface and the brake includes a tapered inner surface abutting the tapered inner surface of the mandrel. The pressure plate is configured to be actuated by fluid pressure within the pipeline to move the spindle axially toward the first end cap from a first position to a second position to cause the expansion boot and the brake to engage an inner surface of the pipeline. 1. A packer apparatus configured to be arranged within and arrest a failure of a submerged pipeline , the packer apparatus comprising:a spindle comprising a pressure plate disposed adjacent a first end of the packer apparatus;a first end cap defining the second end of the packer apparatus;a seal plate disposed between the pressure plate and the first end cap;a mandrel and a brake disposed between the pressure and seal plates, wherein the mandrel comprises a tapered outer surface and the brake comprises a tapered inner surface abutting the tapered inner surface of the mandrel; andan elastomeric expansion boot disposed between the seal plate and the first end cap,wherein the pressure plate is configured to be actuated by fluid pressure within the pipeline to move the spindle axially toward the first end cap from a first position to a second position, and the expansion boot to compress axially between the seal plate and the first end cap and expand radially into engagement with an inner surface of the pipeline; and', 'the tapered inner surface of the brake to move axially along the tapered outer surface of the mandrel to cause the brake to move radially ...

METHODS AND APPARATUS FOR ARRESTING FAILURES IN SUBMERGED PIPELINES

A packer apparatus is configured to be arranged within and arrest a failure of a submerged pipeline. In one example, the packer apparatus includes first and second mandrels in axially moveable relation to one another, a brake connected to the second mandrel, and an elastomeric expansion boot circumferentially disposed around a portion of the first and second mandrels. The first mandrel is configured to move axially toward the second mandrel from a first position to a second position. In the second position, the first mandrel is configured to cause the expansion boot to be compressed axially between the first and second mandrels and expanded radially into engagement with an inner surface of the pipeline, and to cause the brake to move radially outward to engage the inner surface of the pipeline. 1. A packer apparatus configured to be arranged within and arrest a failure of a submerged pipeline , the packer apparatus comprising:first and second mandrels in axially moveable relation to one another;a brake connected to the second mandrel; andan elastomeric expansion boot circumferentially disposed around a portion of the first and second mandrels, the expansion boot to be compressed axially between the first and second mandrels and expanded radially into engagement with an inner surface of the pipeline; and', 'the brake to move radially outward to engage the inner surface of the pipeline., 'wherein the first mandrel is configured to move axially toward the second mandrel from a first position to a second position, and wherein, in the second position, the first mandrel is configured to cause2. The apparatus of claim 1 , further comprising an actuator configured to cause the first mandrel to move axially toward the second mandrel from the first position to the second position.3. The apparatus of claim 2 , wherein the actuator comprises at least one of a pneumatic claim 2 , hydraulic claim 2 , electrical claim 2 , electromechanical claim 2 , and electromagnetic actuator.4. ...

Monitoring System for Marine Risers

A monitoring system for use in a marine riser system coupled to a rig vessel includes one or more subsea inertial measurement units adapted for mounting to a lower end of a riser, an LMRP, or both. The one or more subsea inertial measurement units may acquire time series data of inclination and acceleration. The one or more subsea inertial measurement units may transmit, to a vessel transceiver, frequency data computed from the time series data, low-pass filtered values of the time series data, or both. The monitoring system includes a surface processing unit that is in communication with the vessel transceiver. The surface processing unit may be programmed to compute, for example, fatigue along the marine riser system, the difference between the inclination of the lower end of the riser and the inclination of the LMRP, or both, by applying predetermined functions to the transmitted data. 1. A monitoring system for a marine riser system , the marine riser system including a wellhead , an LMRP and a riser , the LMRP being coupled to the wellhead , a lower end of the riser being coupled to the LMRP , the monitoring system comprising:a first subsea inertial measurement unit adapted for mounting to the lower end of the riser and including means for acquiring time series data of inclination and acceleration, means for computing frequency spectra of the time series data, and means for transmitting data from the computed frequency spectra to a vessel transceiver; anda surface processing unit in communication with the vessel transceiver and programmed to apply predetermined functions to the transmitted data to compute stress levels at a plurality of locations along the riser, the LMRP, or the wellhead.2. The monitoring system of claim 1 , wherein the surface processing unit is further programmed to compute and display fatigue of the riser claim 1 , the LMRP claim 1 , or the wellhead based on the computed stress levels.3. The monitoring system of or claim 1 , further ...

Quadruple RAM BOP

A blowout preventer having a body, a main bore in the body, and rams that project into the main bore. The rams can be shear rams for shearing a tubular in the main bore, pipe rains for sealing around a tubular in the main bore, or sealing rams that seal across the main bore. The rams are in cavities formed in the body, the cavities are formed such that more than two rams can be disposed at the same elevation in the body thereby reducing the overall height of the blowout preventer stack. 1. A blowout preventer for use with a wellhead assembly comprising:a body having axis;a main bore in the body that is substantially parallel with the axis;at least three cavities in the body at substantially the same axial location in the body and that intersect the main bore; anda ram in each of the cavities.2. The blowout preventer of claim 1 , wherein one of the rams comprises a pipe ram and one of the rams comprises a shear ram.3. The blowout preventer of claim 1 , wherein each ram comprises a block having a forward side facing the main bore claim 1 , a rearward side distal from the forward side claim 1 , lateral sides extending between the forward and rearward sides and that are in a plane that is generally parallel with the axis.4. The blowout preventer of claim 3 , wherein the ram block further comprises an upper side that extends between upper terminal ends of the forward and rearward sides.5. The blowout preventer of claim 4 , wherein a seal is provided on the ram that extends along the upper side and the forward side.6. The blowout preventer of claim 1 , wherein the axial location comprises a first axial location claim 1 , wherein the cavities comprise a first set of cavities claim 1 , and wherein a second set of cavities are formed in the body at a second axial location that is spaced axially away from the first axial location.7. The blowout preventer of claim 6 , further comprising rams in the second set of cavities.8. The blowout preventer of claim 1 , wherein four ...

CLADDING

A cladding section () for mounting upon an elongate member to be deployed underwater is shaped to suppress vortex induced vibration of the elongate member when it is subject to a fluid flow, the cladding section comprising at least one cylindrical or part-cylindrical portion () to seat upon the elongate member and at least one strake ( ) upstanding from the part-cylindrical portion, the cladding section being characterised in that the strake is resilient, enabling it to be deformed when subject to load and to reform following removal of the load. The cladding section may be prepared by methods involving thermoforming or moulding. 1. A cladding section for mounting upon an elongate member to be deployed underwater , the cladding section being shaped to suppress vortex induced vibration of the elongate member when it is subject to a fluid flow , the cladding section comprising at least one cylindrical or part-cylindrical portion to seat upon the elongate member and at least one stake upstanding from the part-cylindrical portion , the cladding section being characterised in that the stake is resilient , enabling it to be deformed when subject to load and to reform following removal of the load.2. A cladding section as claimed in which is a unitary thermoformed component.3. A cladding section as claimed in or in which the strake is hollow.4. A cladding section as claimed in any preceding claim in which the strake is filled with a resilient material.5. A cladding section claim 4 , as claimed in in which the stake is filled with a moulded material.6. A cladding section as claimed in or in which the strake is filled with a polyurethane material.7. A cladding section as claimed in any preceding claim which comprises a plurality of part-cylindrical portions joined by hinges claim 4 , enabling it to be reconfigured from a quasi-flat state in which the part-cylindrical portions lie side-by-side and a state in which it forms a tube for receiving the elongate member.8. A ...

TENSIONER LATCH WITH SLIDING SEGMENTED BASE

A tensioner assembly for applying tension to a tubular member, such as a riser, can include an upper latch connected to the tubular member, a platform with a bore, and a lower latch ring. After applying tension to the tubular member, the lower latch ring can be closed around the tubular member so that when the tension is released, the upper latch lands on and engages the lower latch. The assembly can include a locking mechanism that prevents axial movement of the upper latch, relative to the lower latch, after engagement. The upper latch can self-center on the lower latch as it is moved into the latching position. 1. An apparatus for providing tension to a riser , the apparatus comprising:a platform having a bore therethrough;a tubular member extending through the bore;an annular upper latch member connected to an outer diameter of the tubular member, the upper latch member having a downward facing latch recess on a bottom surface; anda retractable lower latch ring connected to the platform, the lower latch ring being movable from an open position to a latch position, the open position allowing the upper latch member to pass through and the latch position stopping downward axial movement of the upper latch member, the lower latch ring having a cylindrical guide extending upward in an axial direction and having an outer diameter that is less than an inner diameter of the latch recess when the lower latch ring is in the latch position so that the cylindrical guide can fit inside the latch recess.2. The apparatus according to claim 1 , further comprising a downward and inward facing tapered surface extending downward from the latch recess.3. The apparatus according to claim 2 , wherein the tapered surface centers the upper latch member on the lower latch ring when the cylindrical guide enters the latch recess.4. The apparatus according to claim 1 , further comprising an annular lock ring recess on each of an outer diameter surface of the cylindrical guide and an inner ...

Weathervaning riser joint

Techniques and systems to reduce deflection of a riser extending from an offshore platform. A device may include a main tube disposed along a length of the device. The device may also include a support member that may be coupled to the main tube, wherein the support member may surround the main tube. The device may include a buoyancy assembly that may at least partially surround the main tube, wherein the buoyancy assembly may have an elongated non-circular and non-cylindrical shape. The buoyancy assembly may also include buoyancy foam.

TENSIONER LATCH WITH PIVOTING SEGMENTED BASE

A tensioner assembly for applying tension to a tubular member, such as a riser, can include an upper latch connected to the tubular member, a platform with a bore, and a plurality of lower latch segments, each having a base that is pivotally connected to the platform. After applying tension to the tubular member, the segments pivot inward to form an annular lower latch ring having an inner diameter less than an outer diameter of the upper latch. The assembly can include a locking mechanism that prevents axial movement of the upper latch, relative to the lower latch ring, after engagement. The upper latch can self-center on the lower latch as it is moved into the latching position. 1. An apparatus for providing tension to a riser , the apparatus comprising:a platform having a bore therethrough;a tubular member extending through the bore;an annular upper latch member connected to an outer diameter of the tubular member, the upper latch member having an end surface;an annular centralizer ring connected to an outer diameter of the tubular member, axially below the upper latch member.a plurality of latch segments positioned circumferentially around the bore, each of the plurality of latch segments being moveable between an open position and an engaged position,the plurality of latch segments, in the open position, defining an inner diameter greater than an outer diameter of the centralizer ring, andin the engaged position, an engagement end of each of the latch segments being nearer an axis of the bore than in the open position to define an annular latch ring having an inner diameter smaller than the outer diameter of the upper latch member.2. The apparatus according to claim 1 , wherein each latch segment comprises two sides claim 1 , each of the two sides contacting one of the two sides of an adjacent one of the plurality of latch segments in the engaged position.3. The apparatus according to claim 1 , wherein each of the latch segments support two adjacent latch ...

AIRFLOW ADJUSTING APPARATUS

An airflow adjusting apparatus to be installed in a vehicle includes an airflow generator and a controller. The airflow generator is provided on an inner surface of a wheel house or on a wheel. The wheel house provides a wheel containing section of a vehicle body. The wheel is contained in the wheel containing section. The airflow generator is configured to generate an airflow that flows from the wheel containing section toward outer side in a vehicle widthwise direction. The controller is configured to control the airflow generator. 1. An airflow adjusting apparatus to be installed in a vehicle , the apparatus comprising:an airflow generator that is provided on an inner surface of a wheel house or on a wheel, the wheel house providing a wheel containing section of a vehicle body, the wheel being contained in the wheel containing section, the airflow generator being configured to generate an airflow that flows from the wheel containing section toward outer side in a vehicle widthwise direction; anda controller configured to control the airflow generator.2. The airflow adjusting apparatus according to claim 1 , wherein the airflow generator comprises a first airflow generator claim 1 , the first airflow generator being provided at least on: a surface portion claim 1 , of the inner surface of the wheel house claim 1 , on front side of the wheel; or a surface portion claim 1 , of the inner surface of the wheel house claim 1 , on rear side of the wheel; the first airflow generator being configured to generate an airflow along the surface portion on which the first airflow generator is provided.3. The airflow adjusting apparatus according to claim 1 , further comprisinga turning state detector configured to detect a turning state of a vehicle, whereinthe airflow generator comprises two or more airflow generators, andthe controller is configured to cause, when the vehicle is turning, a flow velocity of an airflow generated by the airflow generator provided on turning ...

DOWNFORCE FEEDBACK SYSTEMS AND CONTROL LOGIC FOR ACTIVE AERODYNAMIC DEVICES OF MOTOR VEHICLES

Disclosed are downforce feedback systems for active aerodynamic devices, methods for making/using such systems, and vehicles equipped with a closed-loop downforce feedback system to govern operation of the vehicle's active aero device(s). A feedback control system for operating an active aerodynamic device of a motor vehicle includes one or more pressure sensors for detecting fluid pressures in one or more pneumatic or hydraulic actuators for moving the active aero device. A vehicle controller receives fluid pressure signals from these sensor(s), and calculates an actual downforce value from these signal(s). The controller retrieves a calibrated downforce value from mapped vehicle downforce data stored in memory, and determines if the actual downforce value differs from the calibrated value. If so, the controller determines a target position for a target downforce value for a current vehicle operating condition, and commands the actuator(s) to move the active aero device to the target position. 1. A feedback control system for operating an active aerodynamic device of a motor vehicle , the motor vehicle including a vehicle body with the active aerodynamic device movably mounted on the vehicle body , and a pneumatic or hydraulic actuator selectively operable to move the active aerodynamic device , the feedback control system comprising:a pressure sensor configured to mount to the vehicle body and fluidly connect to the pneumatic or hydraulic actuator, the pressure sensor being operable to detect fluid pressures in the pneumatic or hydraulic actuator and generate fluid pressure signals indicative thereof;a memory device storing mapped vehicle downforce data calibrated to the motor vehicle; and receive a fluid pressure signal from the pressure sensor;', 'calculate an actual downforce value from the received fluid pressure signal;', 'determine if the calculated actual downforce value differs from a calibrated downforce value retrieved from the mapped vehicle downforce ...

Fairing and method

A fairing device for the reduction of vortex-induced vibrations or motions, and for minimizing the drag about a substantially cylindrical element immersed in a fluid medium, comprising; a fairing rotatably mounted about the cylindrical element, the fairing comprising a shell with a mainly cylindrical cross-sectional shape with an outer diameter (D) following the outer diameter of the cylindrical element from an upward stagnation point of 0 degrees to at least +/−90 degrees, and which at +/−90 degrees continues as two fin-like portions in an aft direction, whereby the fin-like portions are convexly curved aft of +/−90 degrees thus tapering towards each other and are defining a tail end opening or gap less than the fairing standoff height. A method for mounting, storage, and deployment of the fairing device is also disclosed.

TURBULENCE GENERATION SYSTEM

A turbulence generation system includes a vane assembly to direct airflow from a nozzle. The vane assembly includes at least two vertically oriented nozzle contraction vanes, a pair of vertically oriented nozzle exit vanes, and at least one horizontally oriented vane. The nozzle contraction vanes are located within the nozzle upstream of a nozzle air outlet. Each nozzle contraction vane rotationally moves independent of the other nozzle contraction vane to generate airflow pressure loss, turbulence and/or flow vectoring. The nozzle exit vanes are downstream of the air outlet and rotationally move to generate higher angles of dynamic yaw or a quick yaw input. The nozzle exit vanes are positioned laterally inward from first and second sidewalls of the nozzle. The horizontally oriented vane is positioned downstream of nozzle contraction vanes and upstream of the nozzle exit vanes and rotationally moves to generate up-wash or downwash. 1. A turbulence generation system for use in aerodynamic and acoustic testing of a vehicle comprising:a contraction section including a nozzle having an air inlet and an air outlet; and at least two vertically oriented nozzle contraction vanes located within the nozzle upstream of the air outlet, each nozzle contraction vane is configured to rotationally move independent of the other nozzle contraction vane to generate airflow pressure loss, turbulence and/or flow vectoring,', 'a pair of vertically oriented nozzle exit vanes downstream of the air outlet and configured to rotationally move to generate dynamic yaw, one of the nozzle exit vanes positioned laterally inward from a first sidewall of the nozzle and the other nozzle exit vane positioned laterally inward from a second sidewall of the nozzle which is laterally spaced from the first sidewall, and', 'at least one horizontally oriented vane positioned downstream of nozzle contraction vanes and upstream of the nozzle exit vanes and configured to rotationally move to generate up-wash or ...

INTERFACE

A bend restrictor segment comprises a female end and a mate end, wherein the female end is suitable for locating around the male end of a further bend restrictor segment and the male end is suitable for locating inside the female end of a further bend restrictor segment. The bend restrictor segment is adapted to be suitable for coupling, in either orientation, to an interface unit. 138.-. (canceled)39. A bend restrictor segment shaped to be coupled to another similarly formed bend restrictor segment to form a bend restrictor element havinga through-going bore for receiving a member to be protected from over-bending;a female end;a male end for locating inside the female end of an adjacent, similarly formed bend restrictor element; anda coupling feature comprising at least one of a projection, a groove and a recess within the through-going bore for coupling the bend restrictor element to an interface unit received in the through-going bore, the bend restrictor segment being suitable for coupling in either orientation to the interface unit.40. An assembly comprising a bend restrictor element as claimed in mounted upon an interface unit claim 39 , wherein the interface unit comprises at least one of a projection claim 39 , a groove and a recess for coupling to the coupling feature of the bend restrictor element.41. An assembly as claimed in claim 40 , wherein said at least one of a projection claim 40 , a groove and a recess of the interface unit complements and mates with said coupling feature of the bend restrictor element.42. An assembly as claimed in claim 40 , wherein said at least one of a projection claim 40 , a groove and a recess of the interface unit couples with said coupling feature of the bend restrictor element through a further structure between the bend restrictor segment and the interface unit.43. An assembly as claimed in claim 42 , wherein said further structure projects into recesses on both the bend restrictor segment and the interface unit to lock ...

Skin grooves used for directing fluid on aircraft, landcraft, spacecraft, and watercraft related vehicles or propelled/projectile objects

The skin grooves provide a methodology in directing the flow of fluid on multiple types of vehicles and objects. The grooves within the skin allow the fluid to be directed. The grooves work similarly to a water slide. The groove within the water slide directs the water accordingly. By utilizing the same method of directing the flow of fluid on an aircraft, landcraft, spacecraft, and watercraft related vehicles or propelled/projectile objects, it provides limitations to drag.

RISER AND SUBSEA EQUIPMENT GUIDANCE

Techniques and systems to reduce deflection of a riser suspended from offshore platform. A guidance thrust delivery system (GTDS) includes a plurality of thrusters configured to be coupled to a riser of an offshore vessel. Each thruster of the plurality of thrusters is configured to generate a force on the riser of the offshore vessel to control a position of the riser in a subsea environment while the riser is suspended from the offshore vessel and decoupled from a seafloor. 1. A system , comprising:a guidance thrust delivery system (GTDS) comprising a plurality of thrusters, wherein each thruster of the plurality of thrusters is configured to generate a force on a riser of an offshore vessel to control a position of the riser in a subsea environment while the riser is suspended from the offshore vessel and decoupled from a seafloor, wherein the GTDS comprises a first detachable thrust unit configured to be detached from a first location of the riser and to be removably attached to a second location of the riser while the riser is in the subsea environment, wherein the first detachable thrust unit comprises one or more thrusters of the plurality of thrusters.2. The system of claim 1 , wherein the plurality of thrusters comprises an azimuthing thruster configured to generate a force in a lateral direction claim 1 , wherein the azimuthing thruster is configured to rotate about a respective axis to adjust the lateral direction of the force.3. The system of claim 1 , wherein the GTDS comprises a second thrust unit permanently affixed to the riser.4. The system of claim 1 , wherein the plurality of thrusters is disposed about the thrust unit to generate forces in a first lateral direction claim 1 , a second lateral direction perpendicular to the first lateral direction claim 1 , and a vertical direction.5. The system of claim 1 , wherein the plurality of thrusters comprises:a first thruster configured to generate a first force in a first lateral direction; anda second ...

EROSION CONTROL MAT SYSTEM

A concrete mat apparatus, includes a plurality of elongated concrete members, each member being aligned with and next to another concrete member. Each of the concrete members has an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper or lower surface. Reinforcement extends from a first end portion of each concrete member to a second end portion thereof, the reinforcement including a plurality of longitudinally extending reinforcement bars and a plurality of encircling tie bars at spaced apart intervals. Cabling connects each of the elongated concrete members to another of the elongated concrete members. The combination of elongated concrete members has a width and a length that is at least twice as long as the width. The upper inclined surfaces of one of the elongated concrete members forms a plane with the lower inclined surface of an adjacent elongated concrete member. A plurality of loops are provided along opposed edges of the mat, each loop formed by a portion of the cabling. The loops can be spaced between about one and three feet (30.5 and 91.4 cm) apart. 1. A concrete mat apparatus , comprising:(a) a plurality of elongated concrete members, each member being aligned with and next to another concrete member;(b) each of the concrete members having an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper or lower surface;(c) reinforcement that extends from a first end portion of each concrete member to a second end portion thereof, said reinforcement including a plurality of longitudinally extending reinforcement bars and a plurality of encircling stirrups at spaced apart intervals;(d) cabling that connects each of the elongated concrete members to another of said elongated concrete members, said cabling including generally parallel cable sections, each cable section extending transversely through ...

BENDING RESTRICTOR

Bend restrictor comprising at least one pipe section and at least one clamp section 1. Bend restrictor comprising: at least one pipe section and at least one clamp sectionwherein the pipe section comprises an outward facing flange at each end, the pipe section is split in the longitudinal direction into at least two parts,wherein the clamp section comprises an inward facing flange at each end and a pipe shaped middle section therebetween, wherein the clamp section is split in the longitudinal direction into at least two parts, wherein said parts are connectable through bolt connections, or through locking pin connections or through straps andwherein each inward facing flange is adapted to receive the outward facing flange of a pipe section.2. Bend restrictor according to claim 1 , wherein the outer diameter of the pipe shaped middle section of the clamp section is equivalent to the outer diameter of the pipe section between the outward facing flanges.3. Bend restrictor according to claim 1 , wherein the clamp section comprises a radial extension at each end claim 1 , wherein each radial extension comprises the inward facing flange.4. Bend restrictor according to claim 1 , wherein the bend restrictor is made of metal and each section claim 1 , preferably each part claim 1 , comprises a sacrificial anode.5. Bend restrictor according to claim 4 , wherein the sacrificial anode(s) of the clamp section is arranged on the pipe shaped middle section of the clamp section.6. Bend restrictor according to claim 1 , wherein the bend restrictor is made of PUR or composite material.7. Bend restrictor according to claim 1 , wherein the at least two parts of the clamp section comprises through holes adapted to receive a bolt.8. Bend restrictor according to claim 7 , wherein the at least two parts of the clamp section comprises axial extending tongues comprising the through holes adapted to receive a bolt.9. Bend restrictor according to claim 8 , wherein the maximum outer diameter of ...

APPARATUS AND METHOD FOR PREDICTING A DERFORMED SHAPE OF A STRUCTURE

An apparatus for predicting a deformed shape of a structure, and method of operating and forming the same. In an embodiment, the apparatus is formed with a riser with ends coupled respectively to an upper location and a lower location. The apparatus includes sensorsconfigured to sense an inclination of the riser at riser nodes positioned on the riser between the upper location and the lower location. The apparatus further includes a data processing system configured to produce an estimate of a deformed shape of the riser employing deformed shaped functions to represent, respectively, the estimate of the deformed shape of the riser above and below the riser nodes. 1. An apparatus operable with a riser with ends coupled respectively to an upper location and a lower location , comprising:sensors configured to sense an inclination of said riser at riser nodes positioned on said riser between said upper location (and said lower location; anda data processing system configured to produce an estimate of a deformed shape of said riser employing deformed shaped functions to represent, respectively, said estimate of said deformed shape of said riser above and below said riser nodes, wherein:positions, first derivatives, and second derivatives of said deformed shape functions are respectively matched at said riser nodes, andsaid first derivatives are matched to said inclination of said riserat said riser nodes.2. (canceled)3. The apparatus as recited in wherein said deformed shape functions are third-order polynomial functions claim 1 , and second derivatives of ones of said deformed shape functions are set equal to zero at said upper location and said lower location.4. The apparatus as recited in further comprising a position sensor configured to retrieve a position of said upper location.5. (canceled)6. The apparatus as recited in wherein a global navigation satellite system is employed to retrieve said position of said riser where it is coupled to said upper location.7. The ...

HELICAL STRAKE ATTACHMENT FOR TUBULAR STRUCTURAL MEMBERS

A helical strake pole system that includes a tubular pole having a longitudinal axis and threaded attachment points. The system further includes a helical strake fin disposed circumferentially around a portion of the tubular pole along the longitudinal axis. The system further includes couplers disposed on the tubular pole. The couplers are configured such that each coupler has a first portion with a slot configured to receive an upper portion of the helical strake fin and a second portion configured to removably coupled to a threaded attachment point of the tubular pole. In addition, each coupler is configured to position a portion of the helical strake fin substantially perpendicular to a surface of the tubular pole. 1. A helical strake system , comprising:a tubular pole having a longitudinal axis and comprising a plurality of threaded attachment points;a helical strake fin disposed circumferentially around a portion of the tubular pole along the longitudinal axis; [ a first portion comprising a slot configured to receive an upper portion of the helical strake fin; and', 'a second portion configured to be removably coupled to a threaded attachment point of the tubular pole; and, 'each coupler comprises, 'each coupler configured to position a portion of the helical strake fin substantially perpendicular to a surface of the tubular pole., 'a plurality of couplers disposed on the tubular pole, wherein2. The system of claim 1 , wherein: a respective first attachment point on one side of the helical strake fin; and', 'a respective second attachment point on an opposing side of the helical strake fin., 'the second portion of the coupler is coupled to3. The system of claim 1 , wherein: substantially cover one side of the helical strake fin disposed within the coupler; and', 'partially cover an opposing side of the helical strake fin disposed within the coupler., 'the slot in the first portion of each coupler is configured to4. The system of claim 1 , wherein: ...

TWIN-FIN FAIRING

A fairing () for improving fluid flow around a circular-cylindrical object comprises a first fairing-element () and a second fairing-element (), which are releasable relative to one another. The fairing-elements are easy to manufacture, compactly stackable, and easy to install around the object. In installed condition, the first fairing-element and the second fairing-element are mutually connected in circumferential direction of the fairing, while forming a twin-fin fairing, which reduces vortex-induced vibrations around the object, while providing favourable flow resistance, and without performing galloping motions. 1. Twin-fin fairing for improving fluid flow around a circular-cylindrical object , wherein the fairing has an operation condition in which:the fairing is installed around said circular-cylindrical object and, under influence of said fluid flow, is reciprocally rotatable relative to the object about the longitudinal direction of the object,the circumferential direction and the longitudinal direction of the circular-cylindrical object are defining a corresponding circumferential direction of the fairing and a corresponding longitudinal direction of the fairing, respectively, andthe fairing comprises, along at least one subrange of its overall-range in its longitudinal direction, and as seen in perpendicular cross-section relative to its longitudinal direction, at least one U-shaped portion, respectively, which according to the curvature of its U-shape envelopes the object in the circumferential direction of the fairing, and wherein the fairing comprises a first fin and a second fin, which are formed by the at least one U-shaped portion, and which are protruding in a free-ending manner relative to the object, according to the two free-ending legs, respectively, of said U-shape, and which make the fairing rotate according to said reciprocal rotatability under influence of said fluid flow,characterized in thatthe fairing comprises a first fairing-element ...

SWIM SPA HAVING A WALL INSERT

An improved swim spa is described which has a tank having a head end and a foot end filled with water. A forward current is created by pumping equipment which directs the forward current from a head end of the tank, past a swimmer in the water to a foot end of the tank. The pumping equipment may be attached to a removable wall insert to which may be removed to allow easy repair and maintenance. The forward current allows the swimmer to swim in place. The width of the forward current is chosen to be at least twice its depth. A diverter at the foot end of the tank has a curved surface for redirecting the forward current toward the sidewalls and then back toward the head wall in a horizontal plane and downward and back toward the head wall in a vertical plane. 1. A more efficient swim spa requiring less energy to operate , comprising: i. a first side wall and a second side wall each having a head end and a foot end;', 'ii. a foot wall positioned substantially perpendicular to the side walls, thereby connecting the foot ends of the side walls;', 'iii. a head wall positioned substantially perpendicular to the side walls, thereby connecting the head ends of the side walls in order to create the tank;, 'a. a tank having a head end and a foot end, the tank being filled with a volume of water, the tank comprisingb. pumping equipment that includes at least two side-by-side propellers that are driven by a single drive and at approximately equal speed that create a single forward current of water limited to one or more output windows at a surface of the water, wherein the single forward current of water has a width at least twice a height of the forward current of water;c. a nozzle attached to the one or more output windows, wherein the nozzle is adapted to be continuously adjustable to adjust a width and height or angle of the forward current of water received from the output window such that the nozzle is capable of directing the single forward current of water slightly below ...

Helical Strake Attachment for Tubular Structural Members

A helical strake pole system that includes a tubular pole having a longitudinal axis and threaded attachment points. The system further includes a helical strake fin disposed circumferentially around a portion of the tubular pole along the longitudinal axis. The system further includes couplers disposed on the tubular pole. The couplers are configured such that each coupler has a first portion with a slot configured to receive an upper portion of the helical strake fin and a second portion configured to removably coupled to a threaded attachment point of the tubular pole. In addition, each coupler is configured to position a portion of the helical strake fin substantially perpendicular to a surface of the tubular pole. 120.-. (canceled)21. A helical strake system , comprising:a tubular structural member having a longitudinal axis and comprising a plurality of threaded attachment points;a helical strake fin disposed circumferentially around a portion of the tubular structural member along the longitudinal axis;a plurality of couplers disposed on the tubular structural member, wherein: a first portion comprising a slot configured to receive an upper portion of the helical strake fin; and', 'a second portion configured to be removably coupled to a threaded attachment point of the tubular structural member; and', 'each coupler configured to position a portion of the helical strake fin substantially perpendicular to a surface of the tubular structural member., 'each coupler comprises22. The system of claim 21 , wherein: a respective first attachment point on one side of the helical strake fin; and', 'a respective second attachment point on an opposing side of the helical strake fin., 'the second portion of the coupler is coupled to23. The system of claim 21 , wherein: substantially cover one side of the helical strake fin disposed within the coupler; and', 'partially cover an opposing side of the helical strake fin disposed within the coupler., 'the slot in the first ...

Monitoring Tubing Related Equipment

A technique facilitates monitoring of strain related effects along a tubing string, such as a tubing string extending from surface equipment toward a sea floor in a subsea well application. A monitoring module is employed to monitor the strain related effects and may have a tubular structure. The monitoring module also has a reduced wall thickness region constructed to concentrate strain in this reduced wall thickness region. Additionally, the monitoring module comprises at least one sensor mounted to the tubular structure in the reduced wall thickness region for monitoring of strains. 1. A system , comprising:a tubular string extending from a surface platform toward a sea floor, the string having an upper end and a lower remote end; and a hollow mandrel having a reduced wall thickness region encircling the hollow mandrel to concentrate strain in the reduced wall thickness region; and', 'at least one sensor coupled to an exterior surface of the hollow mandrel at the reduced wall thickness region to monitor strain., 'a string monitoring module coupled into the tubular string, the string monitoring module comprising2. The system as recited in claim 1 , wherein the at least one sensor comprises a plurality of strain sensors.3. The system as recited in claim 2 , wherein the plurality of strain sensors comprises at least three strain sensors.4. The system as recited in claim 1 , wherein the at least one sensor is located in a load sensing chamber defined at least in part by a sleeve covering the reduced wall thickness region.5. The system as recited in claim 4 , wherein the load sensing chamber is filled with oil.6. The system as recited in claim 1 , wherein the at least one sensor is bonded to the exterior surface of the hollow mandrel.7. The system as recited in claim 1 , wherein the tubular string comprises a production tubing.8. The system as recited in wherein the tubular string comprises a tubing hanger.9. The system as recited in claim 1 , wherein the string ...

AIR CONDUCTION ELEMENT FOR REDUCING AIR RESISTANCE OF A LOAD-CARRYING VEHICLE

An air conduction element for reducing the air resistance of a load-carrying vehicle having a load space structure. The air conduction element can be externally mounted in the rear region of the load space structure and includes an air conduction duct with a front air inlet opening and a rear air outlet opening, front and rear being in relation to the direction of travel (x). The air inlet opening overlaps the load space structure in the direction of travel (x) and the air outlet opening is arranged behind the load space structure within the cross-sectional contour thereof. The air conduction element has a cover which delimits the air conduction duct. It was therefore the aim to devise an air conduction element which does not increase the dimensions of the load space structure when the vehicle is driving slowly or is at a standstill. For this purpose, the cover is produced from a flexible flat material. 1. An air conduction element for reducing air resistance of a load-carrying vehicle having a cargo space structure , which can be externally mounted in a rear region of the cargo space structure and comprises an air conduction duct with a front air inlet opening and a rear air outlet opening in a direction of travel (x) , wherein the air inlet opening overlaps the cargo space structure in the direction of travel (x) and the air outlet opening is arranged behind the cargo space structure within its cross section contour , wherein the air conduction element comprises a cover which delimits the air conduction duct , wherein the cover is produced from a flexible flat structure.2. The air conduction element as claimed in claim 1 , wherein the cover is held by spacing elements on the cargo space structure.3. The air conduction element as claimed in claim 2 , wherein the spacing elements engage with the cover and the cargo space structure.4. The air conduction element as claimed in claim 2 , wherein the spacing elements are formed from belts or cables.5. The air conduction ...

SCUTTLE FOR THE MONITORING AND INSPECTION OF A FLEXIBLE RISER

The present invention relates to an apparatus for inspecting and monitoring flexible collection and production lines in real time, rendering possible constant tracking of the condition of the internal structures of a flexible riser, specifically of the tensile armour thereof. 1. A scuttle for the monitoring and inspection of a flexible riser , the scuttle comprising:an inspection chamber comprising at least two structural cells;an inspection window being attached over at least one of said structural cells;means of affixing and sealing the scuttle to a riser and/or to a riser accessory, the means of affixing and sealing being configured to interact with extremities of the inspection chamber and thereby establish a watertight connection between the inspection chamber and riser and/or the riser accessory.2. The scuttle for the monitoring and inspection of a flexible riser according to claim 1 , wherein the means of affixing and sealing comprises an expansion sleeve located at an extremity of inspection chamber claim 1 , for supporting and separating an external layer of riser from the remaining layers.3. The scuttle for the monitoring and inspection of a flexible riser according to claim 2 , wherein said means of affixing and sealing comprises a sealing ring claim 2 , and the means of affixing and sealing is further configured so that the sealing ring is made to compress claim 2 , in use claim 2 , an external layer of the riser against the expansion sleeve.4. The scuttle for the monitoring and inspection of a flexible riser according to claim 3 , wherein said means of affixing and sealing further comprises an activation flange superimposed on said sealing ring claim 3 , to compress the sealing ring.5. The scuttle for the monitoring and inspection of a flexible riser according to claim 4 , wherein the extremity of inspection chamber is provided with an internal bevel that receives the sealing ring.6. The scuttle for the monitoring and inspection of a flexible riser ...

SYSTEM THAT CREATES A COMPLEX FLUID MECHANISM OVER A BLUNT BODY WITH AND WITHOUT A DECELERATOR AND WITH REGARD TO A TOTAL AERODYNAMIC DRAG

A system for creating an analysis to be used in development of a design methodology for creating a blunt body with optimal performance, the system includes a first blunt body model lacking a deceleration device; a second blunt body model with a deceleration device integrated into the second blunt body model; a computational fluid dynamic module to perform data analysis on the first blunt body model and the second blunt body model; contoured plots relating to fluid flow around the first blunt body and the second blunt body as determined by the computational fluid dynamics module; the contoured plots provide a numerical analysis to be used to develop a design of the blunt body with optimal performance. 1. A system for creating an analysis to be used in development of a design methodology for creating a blunt body with optimal performance , the system comprising:a first blunt body model lacking a deceleration device;a second blunt body model with a deceleration device integrated into the second blunt body model;a computational fluid dynamic module configured to perform data analysis on the first blunt body model and the second blunt body model;a plurality of contoured plots relating to fluid flow around the first blunt body and the second blunt body as determined by the computational fluid dynamics module;wherein the plurality of contoured plots provide a numerical analysis to be used to develop a design of the blunt body with optimal performance.2. The system of claim 1 , wherein the deceleration device is integrated into an end opposite of a blunt end of the second blunt body module.3. The system of claim 1 , wherein the plurality of contoured plots comprises:a visual representation of detached shock waves associated with the first blunt body model movement through fluid and the second blunt body movement through fluid; anda visual representation of flow separation associated with the first blunt body model movement through fluid and the second blunt body movement ...

SYSTEM CONFIGURED TO CHANGE THE MACH NUMBER FOR DIFFERENT ANGLES OF ATTACK WITH DIFFERENT SPEEDS FOR ACHIEVING CHANGING AERODYNAMIC FORCES AND VELOCITY WITH A DECELERATION DEVICE INTEGRATED WITH A BLUNT BODY

A system to change a Mach number for different angles of attack with different speeds to achieving changing aerodynamic forces and velocity with a deceleration device integrated with a blunt body, the system includes a blunt body model having a deceleration device integrated into the blunt body model; a computational fluid dynamic module to perform data analysis on the blunt body model as the blunt body model receives fluid flow; a selection of Mach numbers to be inputted into the computational fluid dynamics module; a selection of angles of attack to be inputted into the computational fluid dynamics module; and contoured plots created via the computational fluid dynamics; the contoured plots relates to fluid flow around the blunt body model, with the contoured plots providing data relating to one or more of the selection of Mach numbers and one or more of the selection of angles of attack; and the contoured plots provides data analysis to be used to develop a design of a blunt body with optimal performance. 1. A system configured to change a Mach number for different angles of attack with different speeds to achieving changing aerodynamic forces and velocity with a deceleration device integrated with a blunt body , the system comprising:a blunt body model having a deceleration device integrated into the blunt body model;a computational fluid dynamic module configured to perform data analysis on the blunt body model as the blunt body model receives fluid flow;a selection of Mach numbers configured to be inputted into the computational fluid dynamics module;a selection of angles of attack configured to be inputted into the computational fluid dynamics module; anda plurality of contoured plots created via the computational fluid dynamics;wherein the plurality of contoured plots relates to fluid flow around the blunt body model, with the plurality of contoured plots providing data relating to one or more of the selection of Mach numbers and one or more of the selection ...

INNER START-UP TOOL OF CONDUIT BEARING CAPACITY REINFORCING DEVICE AND USING METHOD THEREOF

The present invention provides an inner start-up tool of a conduit bearing capacity reinforcing device and a using method thereof, the inner start-up tool comprising: an outer cylinder in which a pressure bearing disc is axially movably provided, a lower end of the pressure bearing disc being elastically connected with a balance block, and a first ring block and a second ring block being movably diametrically disposed through a lower cylinder walls of the outer cylinder; a first link mechanism having a first vertical rod and a first horizontal rod rotatably connected to the first vertical rod, the first vertical rod being rotatably connected to the balance block, the first horizontal rod being rotatably connected to the first ring block; a second link mechanism having a second vertical rod and a second horizontal rod rotatably connected to the second vertical rod, the second vertical rod being rotatably connected to the balance block, the second horizontal rod being rotatably connected to the second ring block. The inner start-up tool of the conduit bearing capacity reinforcing device and the using method thereof according to the present invention can be used for efficiently operating the conduit bearing capacity reinforcing device, is simple in structure and convenient in use. 1. An inner start-up tool of a conduit bearing capacity reinforcing device comprising:an outer cylinder in which a pressure bearing disc is axially movably provided, a lower end of the pressure bearing disc being elastically connected with a balance block, and a first ring block and a second ring block being movably diametrically disposed through a lower cylinder wall of the outer cylinder;a first link mechanism having a first vertical rod and a first horizontal rod rotatably connected to the first vertical rod, the first vertical rod being rotatably connected to the balance block, the first horizontal rod being rotatably connected to the first ring block; anda second link mechanism having a ...

QUICK ATTACHMENT ASSEMBLY FOR WEIGHING OR BEND LIMITER CABLE ASSEMBLIES

A bend limiter assembly includes at least first and second bodies wherein each body is formed by first and second body portions. The body portions are joined together along a split plane. Each body portion has a semi-circular recess facing the split plane to form a passage through the body upon assembly of the first and second body portions to one another. Each of the first and second body portions has a shoulder spaced axially outward from a first end of the body portion by a reduced dimension neck at the first end to form a male connector member on the body first end when the body portions are assembled. The first and second body portions of each body are assembled about an associated cable received in the passage, and the first and second bodies are assembled in end-to-end fashion such that the male connector member of the first body is received in a female connector member of the second body to allow relative articulation therebetween.

A CYLINDRICAL ELEMENT ADAPTED TO REDUCE VORTEX-INDUCED VIBRATION AND/OR DRAG

A generally cylindrical element adapted for immersion in a fluid medium, the cylindrical element comprising an elongate body having a length and a generally circular cross-section, and a plurality of raised body portions disposed about and extending along the length of the elongate body, the raised body portions being arranged generally parallel to a longitudinal axis of the body and having a height between 2% and 10% of a diameter of the body. The plurality of raised body portions are adapted to reduce vortex-induced vibration and/or drag on the cylindrical element when the cylindrical element is immersed in the fluid medium and there is relative movement between the cylindrical element and the fluid medium. 1. A generally cylindrical element adapted for immersion in a fluid medium , the cylindrical element comprising:an elongate body having a length and a generally circular cross-section; anda plurality of raised body portions disposed about and extending along the length of the elongate body, the raised body portions being arranged generally parallel to a longitudinal axis of the body and having a height between 2% and 10% of a diameter of the body;wherein the plurality of raised body portions are adapted to reduce vortex-induced vibration and/or drag on the cylindrical element when the cylindrical element is immersed in the fluid medium and there is relative movement between the cylindrical element and the fluid medium.2. The cylindrical element of claim 1 , wherein the plurality of raised body portions includes a first plurality of raised body portions disposed along a first length of the elongate body and a second plurality of raised body portions disposed along an adjacent second length of the elongate body claim 1 , and wherein the second plurality of raised body portions are off-set about the longitudinal axis with respect to the first plurality of raised body portions such that the second plurality of raised body portions are not aligned with the first ...

Draft turbulence reduction system and method

The present invention is a system and method for reducing the amount of drag experiences by a moving vehicle as the result of primary airflow across vehicle body edges by introducing a secondary airflow at said edge to reduce the negative pressure created by such an edge such that the turbulence caused by the primary airflow is prevented or reduced.

REMOVABLE COVER INTENDED FOR BEING ARRANGED OPPOSITE A FLUID-TRANSPORT PIPE SUBMERGED IN A BODY OF WATER, ASSOCIATED INTERVENTION ASSEMBLY AND METHOD

A cover including an elongate body, capable of being applied to be facing an outer surface of the pipe, and at least one longitudinal interaction element for interacting with the pipe, supported by the elongate body. The elongate body is reversibly deformable under the effect of its own weight, the elongate body having a length of more than 10 m. The cover treats solid build-ups within a fluid-transport pipe in a simple, straightforward and inexpensive manner. 1. A removable cover intended to be applied to be facing a fluid transport pipe submerged in a body of water , comprising:an elongate body, configured to be applied facing an outer surface of the pipe;at least one longitudinal interaction element for interacting with the pipe, supported by the elongate body;wherein the elongate body is reversibly deformable under the effect of its own weight, the elongate body having a length greater than 10 m.2. The cover according to claim 1 , wherein the elongate body has a length that is greater than 100 m.3. The cover according to claim 1 , wherein the at least one longitudinal interaction element for interacting with the pipe is a longitudinal temperature measurement sensor for measuring the temperature claim 1 , borne by the elongate body.4. The cover according to claim 3 , wherein the longitudinal temperature measuring sensor extends over at least 90% of the length of the elongate body.5. The cover according to claim 1 , further comprising at least one ballast element borne by the elongate body.6. The cover according to claim 1 , wherein the elongate body is configured to be wound in a reversible manner over a rotating storage.7. The cover according to claim 1 , further comprising at least one longitudinal reinforcing armor borne by the elongate body.8. The cover according to claim 1 , further comprising at least one handle configured to be gripped by a remotely operated underwater vehicle.9. The cover according to claim 1 , wherein the elongate body comprises a ...

NON-METALLIC CLIP CONNECTION SYSTEM

A non-metallic clip connection system includes a non-metallic clip having a substantially rectangular base portion, a first longitudinal flared wing portion, and a second longitudinal flared wing portion, wherein a plurality of edges of the clip along a path of insertion are beveled or radiused. The non-metallic clip connection system also includes a first non-metallic member having a first portion of a non-metallic clip receiver and a second non-metallic member having a second portion of the non-metallic clip receiver. The first non-metallic member is secured to the second non-metallic member by inserting the non-metallic clip in the non-metallic clip receiver. A non-metallic vertebrae bend restrictor and a non-metallic vertebrae end piece may use a non-metallic clip connection system. 1. A non-metallic clip connection system comprising:a non-metallic clip comprising a substantially rectangular base portion, a first longitudinal flared wing portion, and a second longitudinal flared wing portion, wherein a plurality of edges of the clip along a path of insertion are beveled or radiused;a first non-metallic member comprising a first portion of a non-metallic clip receiver; anda second non-metallic member comprising a second portion of the non-metallic clip receiver,wherein the first non-metallic member is secured to the second non-metallic member by inserting the non-metallic clip in the non-metallic clip receiver.2. The non-metallic clip connection system of claim 1 , further comprising:a plurality of non-metallic retention screws.3. The non-metallic clip connection system of claim 1 , wherein the non-metallic clip further comprises a clip retention screw receiver on a side longitudinal face of the substantially rectangular base portion.4. The non-metallic clip connection system of claim 1 , wherein the non-metallic clip further comprises a clip retention feature disposed on a rear face of the substantially rectangular base portion.5. The non-metallic clip ...

Fairing and Method

A fairing device and method for the reduction of vortex-induced vibrations or motions, the minimization of drag about a substantially cylindrical element immersed in a fluid medium, comprising; a fairing rotatably mounted about the cylindrical element, the fairing comprising a shell with a mainly cylindrical cross-sectional shape with an outer diameter (D) following the outer diameter of the cylindrical element from an upward stagnation point of 0 degrees to at least ±90 degrees, and which at ±90 degrees continues as two fin-like portions in an aft direction, further comprising that the fin-like portions are convexly curved aft of ±90 degrees thus tapering towards each other and defining a tail end opening or gap less than the fairing standoff height. A method for mounting, storage, and deployment of the fairing device is also disclosed. 2. The method of claim 1 , further comprisingapplying at least one shape-fixation device inside the fairing device along the axial direction by unfolding at least one hinged shape-fixation device or devices from between the cylindrical element and the fairing device; andsecuring and locking the said shape fixation device or devices to the fairing device and to the cylindrical element by means of a locking pin.3. The method of claim 2 , further comprising:wherein applying at least one shape-fixation device inside the fairing device along the axial direction by unfolding at least one hinged shape-fixation device or devices from between the cylindrical element and the fairing device; andsecuring and locking the said shape-fixation device or devices to the fairing device and to the cylindrical element by means of grooves within the inside of the fairing device.4. The method of claim 1 , further comprising:applying at least one shape-fixation device inside the fairing device along the axial direction by inserting at least one shape-fixation device into the inside of the fairing device along the axial direction; andsecuring and locking ...

BULLHEAD-SHAPED GROOVED DIVERSION JET AND EMPENNAGE SWING VIBRATION SUPPRESSION DEVICE AND METHOD

A bullhead-shaped grooved diversion jet and empennage swing vibration suppression device and method. The device consists of an impeller diversion module and a drainage rotary cover module. The impeller diversion module consists of a center impeller, sleeve bearings, small impellers, and small impeller rotating shafts. The drainage rotary cover module consists of a drainage front cover, a perforated jet rear cover, and empennages. The device is mounted on an outer wall of a riser in a sleeving manner. Under a combined action of drainage and space allocation of horizontal rectangular grooves, flow rate distribution of the center impeller, flow direction adjustment of the small impellers, diversion of lateral diversion holes, jet flows of side rear reducing holes, flowing space division and wake vortex turbulence of rotary swinging empennages, around-flow boundary layers at two sides and a tail of the riser are deeply damaged, which suppresses the formation of large vortexes. 187910236881817718827737723636666242322323812342353511239310891098. A bullhead-shaped grooved diversion jet and empennage swing vibration suppression device , consisting of an impeller diversion module and a drainage rotary cover module , wherein the impeller diversion module comprises a center impeller () , two sleeve bearings () , eight small impellers () , and two small impeller rotating shafts (); the drainage rotary cover module comprises a drainage front cover () , a perforated jet rear cover () , and two empennages (); the center impeller () is of an inner-outer ring structure embedded with a cylindrical roller; an inner ring of the center impeller () is fixed to an outer wall of a riser (); arc-shaped blades are uniformly distributed in a circumferential direction of a surface of an outer ring; under the impact of a water flow , the center impeller () may rotate clockwise around the riser (); the sleeve bearing () is of an inner-outer ring structure embedded with a cylindrical roller; the ...

RISER CLAMP ASSEMBLY

A clamp assembly for coupling an auxiliary line to a marine riser includes a clamp body having a central axis and an interface radially spaced from the central axis and a clamp cap having an interface configured to be inserted axially into the interface of the clamp body, wherein the clamp body is configured to clamp to the marine riser, and the clamp body and clamp cap are configured to retain the auxiliary line in an aperture formed between the interface of the clamp body and the interface of the clamp cap 1. A clamp assembly for coupling an auxiliary line to a marine riser , comprising:a clamp body having a central axis and an interface radially spaced from the central axis; anda clamp cap having an interface configured to be inserted axially into the interface of the clamp body;wherein the clamp body is configured to clamp to the marine riser;wherein the clamp body and clamp cap are configured to retain the auxiliary line in an aperture formed between the interface of the clamp body and the interface of the clamp cap.2. The clamp assembly of claim 1 , further comprising a clamp strap configured to couple the clamp body to the marine riser3. The clamp assembly of claim 1 , wherein the clamp body comprises a nonmetallic material.4. The clamp assembly of claim 1 , wherein the clamp cap comprises a nonmetallic material.5. The clamp assembly of claim 1 , further comprising a clamp clip configured to secure the clamp cap to the clamp body.6. The clamp assembly of claim 5 , wherein the clamp clip comprises a nonmetallic material.7. The clamp assembly of claim 1 , wherein a load applied to the clamp cap is transferred from the clamp cap to the clamp body through physical contact between the clamp cap and the clamp body.8. The clamp assembly of claim 7 , wherein the load is transferred from the clamp body to the marine riser through physical contact between the clamp body and a clamp strap coupled to the clamp body.9. The clamp assembly of claim 1 , wherein the clamp cap ...

Fatigue Performance Enhancer

A rigid riser system including a rigid riser and one or more fatigue performance enhancers. The rigid riser includes a plurality of rigid metal sections welded together to form a plurality of girth weld joints. The one or more fatigue performance enhancers are positioned over one or more of the plurality of girth weld joints of the rigid riser to enhance the fatigue resistance and/or fatigue life. The body of the fatigue performance enhancer may include a central region and two end regions with the central region having a greater average radial cross-sectional thickness than each of the end regions. Methods of enhancing fatigue performance of the rigid riser and fatigue performance enhancers are also disclosed. 1. A rigid riser system comprising:a rigid riser including a plurality of rigid metal sections welded together to form a plurality of girth weld joints; andone or more fatigue performance enhancers positioned over one or more of the plurality of girth weld joints of the rigid riser.2. The rigid riser of claim 1 , wherein at least one of the one or more enhancers is positioned over at least one of the plurality of girth weld joints of the rigid riser proximate a seafloor in a touch down zone.3. The rigid riser of claim 1 , wherein at least one of the one or more enhancers is positioned over at least one of the plurality of girth weld joints of the rigid riser proximate a structure on a surface of a body of water to which the rigid riser is connected.4. The rigid riser of claim 1 , wherein the one or more enhancers include a body having a central region extending a first axial length of the enhancer; a first end region extending a second axial length of the enhancer; and a second end region extending a third axial length of the enhancer claim 1 , the first axial length claim 1 , the second axial length and the third axial length forming the total length of the enhancer claim 1 , the central region having a greater average radial cross-sectional thickness than ...

ACTIVE DECK-LID SPOILER CONTROL SYSTEM FOR A MOTOR VEHICLE

A vehicle having a vehicle sensor configured to detect a vehicle state; an actuatable spoiler moveable into a deployed position and a stowed position; an actuator operable to move the actuatable spoiler into the deployed position and the stowed position; and a controller configured to selectively instruct the actuator to actively cycle the actuatable spoiler between the deployed position and the stowed position based on the detected vehicle state. The actuatable spoiler is retained in the deployed position for a longer length of time than in the stowed position. The vehicle also includes a human machine interface selectively actuated by an operator of the vehicle to retain the actuatable spoiler in the stowed position for a predetermined length of time. 1. A vehicle comprising:at least one vehicle sensor configured to detect a vehicle state;an actuatable spoiler disposed transversely on a rear portion of the vehicle, wherein the actuatable spoiler is moveable into a deployed position and a stowed position;an actuator coupled to the actuatable spoiler, wherein the actuator is operable to move the actuatable spoiler into the deployed position and the stowed position; anda controller in communication with the at least one vehicle state sensor and the actuator,wherein the controller is configured to selectively instruct the actuator to cycle the actuatable spoiler between the deployed position and the stowed position when the at least one vehicle sensor detects a predetermined vehicle state.2. The vehicle of claim 1 , wherein the controller is configured to instruct the actuator to continuously cycle the actuatable spoiler between the deployed position and the stowed position when the at least one vehicle sensor detects the predetermined vehicle state.3. The vehicle of claim 2 , wherein the actuatable spoiler is continuously cycled such that the actuatable spoiler is retained in the deployed position for a longer length of time than in the stowed position.4. The vehicle ...

RISER AND AN OFFSHORE SYSTEM

The invention relates to a riser for transporting fluid between an upper facility and a subsea facility. The riser has a center axis and a length along the center axis and comprises an unbonded flexible metal armored riser section and an unbonded flexible composite armored riser section arranged in fluid connection to each other. The metal armored riser section comprises at least two cross-wound tensile armor layers each comprising a plurality of helically wound elongate metal armor elements wound with a winding angle of about 60 degree or less relative to the center axis. The composite armored riser section comprises at least one tensile armor layer comprising a plurality of helically wound elongate composite armor elements wound with a winding angle of about 60 degree or less relative to the center axis. 135-. (canceled)36. A riser for transporting fluid between an upper facility and a subsea facility , the riser has a center axis and a length along the center axis and comprises an unbonded flexible metal armored riser section and an unbonded flexible composite armored riser section arranged in fluid connection to each other , said metal armored riser section comprises at least two cross-wound tensile armor layers each comprising a plurality of helically wound elongate metal armor elements wound with a winding angle of about 60 degree or less relative to the center axis , and said composite armored riser section comprises at least one tensile armor layer comprising a plurality of helically wound elongate composite armor elements wound with a winding angle of about 60 degree or less relative to the center axis.37. The riser as claimed in claim 36 , wherein said metal armored riser section is adapted to be arranged closer to said upper facility than said composite armored riser section claim 36 , the metal armored riser section and the composite armored riser section advantageously being arranged adjacent to each other.38. The riser as claimed in claim 36 , wherein ...

Airfoil Modification To Improve Fuel Efficiency

Systems and methods for reducing or weakening the shocks acting on an airfoil, such as an airfoil of an airplane wing. In one embodiment, the length of an airfoil is increased by shifting the trailing edge aft by installing a trailing edge extender. In one embodiment, the length and shape of an airfoil is changed by shifting the trailing edge aft and downward by installing a trailing edge extender. In one embodiment, an airfoil is changed by removing a portion of the wing at the trailing edge and increasing the camber by installing a trailing edge modifier to adjust the circulation surrounding the wing and redistribute loading of the wing. Modifications of an airplane wing, including installing a trailing edge extender, are easy to implement, do not require span extensions or tip devices, and improve fuel efficiency. 1. A method for reducing total drag of a wing airfoil , the airfoil including a leading edge and a trailing edge , comprising:installing a trailing edge extender to the wing along a length thereof, the trailing edge extender shifting the trailing edge of the airfoil aft.2. The method according to claim 1 , further comprising removing a portion of the wing prior to installing the trailing edge extender.3. A shock reduction element for an airplane wing having an airfoil claim 1 , the airfoil including a leading edge and a trailing edge claim 1 , comprising:a trailing edge extender designed to shift the trailing edge of the airfoil aft.4. The shock reduction element according to claim 3 , wherein the trailing edge extender is installed on the airplane wing from a wing root to a wing tip.5. The shock reduction element according to claim 3 , wherein the airfoil has an original length from the leading edge to the trailing edge of about 74 inches claim 3 , and wherein the trailing edge extender has a length in the aft direction in a range from about 1.5 inches to about 3.5 inches.6. The shock reduction element according to claim 5 , wherein the trailing edge ...

ROLLER

The invention relates to a roller () which is to be mounted upon a conduit () to be deployed on the seabed. The roller facilitates lateral movement of the conduit. It is able to rotate relative to the conduit when mounted. The roller has an outer face () which contacts and rolls upon the seabed in use. The outer face is shaped to provide treads (). 1. A roller configured for mounting on a conduit to be deployed on the seabed to facilitate lateral movement of the conduit , the roller being able to rotate relative to the conduit when mounted , and having an outer face for contacting and rolling upon the seabed , wherein the roller's outer face is shaped to provide treads.2. The roller as claimed in which is buoyant.3. The roller as claimed in claim 1 , wherein the roller includes two or more roller elements for assembly around the conduit claim 1 , the roller elements together forming a through-going passage for receiving the conduit.4. The roller as claimed in claim 1 , wherein the treads comprise grousers.5. The roller as claimed in claim 1 , wherein the treads comprise strakes upstanding from the roller's outer face.6. The roller as claimed in claim 5 , wherein the roller rotates about an axis and the treads extend parallel to the axis.7. The roller as claimed in claim 5 , wherein the strakes have a cross sectional shape which is convergent in a radially outward direction.8. The roller as claimed in claim 5 , wherein the strakes have a delta shape in cross section.9. The roller as claimed in claim 1 , wherein the treads have a height along a radial direction which is between 5% and 25% of the diameter of the roller unit.10. The roller as claimed in has a convex profile claim 1 , viewed along a radial direction.11. The roller as claimed in claim 10 , wherein the convex profile is arcuate.12. The roller as claimed in claim 1 , wherein the roller has an internal cavity for receiving a clamp mounted on the conduit.13. The roller as claimed in claim 12 , wherein the ...

APPARATUS AND METHOD TO REDUCE WIND LOAD EFFECTS ON BASE STATION ANTENNAS

In one example, an antenna radome may have at least a first face that includes a plurality of surface features, where the plurality of surface features may include at least a first ridge and at least a first depression, and where the plurality of surface features may be oriented longitudinal along the antenna radome. In another example, an antenna radome may have at least a first face that includes a plurality of surface features, where the plurality of surface features may include at least a first ridge and at least a first depression, and where the plurality of surface features may be oriented transverse along the antenna radome. 1. An antenna radome , comprising: at least a first ridge; and', 'at least a first depression, wherein the plurality of surface features are oriented longitudinal along the antenna radome., 'at least a first face, wherein the at least a first face comprises a plurality of surface features, wherein the plurality of surface features comprise2. The antenna radome of claim 1 , wherein the plurality of surface features further comprise:rounded corner edges.3. The antenna radome of claim 1 , wherein the antenna radome comprises a plurality of faces claim 1 , wherein the plurality of faces includes the at least a first face claim 1 , wherein the at least a first face comprises a windward face for experiencing a greater wind pressure than other faces of the plurality of faces.4. The antenna radome of claim 3 , wherein the windward face has a larger surface area than the other faces or is oriented away from a mounting structure for the antenna radome.5. The antenna radome of claim 3 , wherein a taper is applied to each of the plurality of faces of the antenna radome that is adjacent to the windward face claim 3 , to provide a diminished wake of a wind flow over the antenna radome.6. The antenna radome of claim 1 , wherein the antenna radome comprises a rectangular cuboid.7. The antenna radome of claim 1 , wherein the at least a first depression ...

RISER DEFLECTION MITIGATION

Techniques and systems to reduce deflection of a riser extending from offshore platform. A riser may include an outer enclosure. This outer enclosure may be coupled to a current deflector. The current deflector is configured to generate a lift on the riser in response to a fluid flowing across the current deflector. This lift that is generated by the current deflector may counteract currents or other factors to mitigate deflection in the riser. 1. A device , comprising:a foil configured to be coupled to a riser of an offshore vessel and configured to generate an upstream lift on the riser of the offshore vessel in response to a fluid flowing across the foil to counteract a force exerted on the riser of the offshore vessel due to flow of the fluid.2. The device of claim 1 , comprising a strut coupled to the foil.3. The device of claim 2 , wherein the strut is configured to couple the foil to a portion of the riser.4. The device of claim 3 , comprising a fastener configured to couple the strut to the portion of the riser.5. The device of claim 3 , comprising a second strut coupled to the foil claim 3 , wherein the second strut is configured to couple the foil to the portion of the riser.6. The device of claim 3 , wherein the portion of the riser is a riser joint.7. The device of claim 3 , wherein the portion of the riser is a pup joint.8. The device of claim 1 , comprising a second foil claim 1 , wherein the foil and the second foil are configured to be directionally opposed with respect to the riser of the offshore vessel in a horizontal direction orthogonal to the direction of the flow of the fluid.9. A method claim 1 , comprising:disposing a foil on a portion of a riser of an offshore vessel to generate an upstream lift on the riser of the offshore vessel in response to a fluid flowing across the foil to counteract a force exerted on the riser of the offshore vessel due to flow of the fluid.10. The method of claim 9 , comprising disposing the foil on a riser joint ...

RISER DEFLECTION MITIGATION

Techniques and systems to reduce deflection of a riser extending from an offshore platform. The riser may include a flow guide. The flow guide may receive a fluid. The flow guide may also include one or more outlets that are configured to transmit the fluid. This transmission of the fluid by the one or more outlets may counteract currents or other factors to mitigate deflection in the riser. 1. A device , comprising:a flow guide configured to be coupled to a riser of an offshore vessel, wherein the flow guide comprises an aperture configured to receive a fluid, wherein the flow guide comprises at least one outlet configured to transmit the fluid so as to reduce deflection in the riser caused by a current.2. The device of claim 1 , wherein the flow guide comprises a plenum coupled to the aperture and the at least one outlet and configured to house the fluid.3. The device of claim 1 , comprising a face comprising the at least one outlet.4. The device of claim 3 , wherein the face is adjustable to alter a direction of the at least one outlet to transmit the fluid in a direction orthogonal to a direction of the current.5. The device of claim 1 , comprising a track coupled to the flow guide and the riser claim 1 , wherein the track is configured to allow for movement of the flow guide along a surface of the riser.6. The device of claim 5 , wherein the flow guide comprises a controller and a sensor coupled to the controller.7. The device of claim 6 , wherein the controller is configured to cause the movement of the flow guide along the surface of the riser in response to a signal generated by the sensor indicative of a sensed conditions of the current or strain in the riser.8. The device of claim 1 , comprising tubing coupled to the aperture and configured to transmit the fluid to the device.9. The device of claim 1 , wherein the aperture is configured to receive the fluid from the current.10. The device of claim 9 , wherein flow guide is configured to rotate about the ...

INSIDE RISER TREE CONTROLS ADAPTER AND METHOD OF USE

A riser tree controls adapter comprises an outer riser tree controls adapter, placed outside a first tubular, and an inner riser tree controls adapter placed outside a second tubular and configured to be received into the outer riser tree controls adapter. Once inserted into the outer riser tree controls adapter, one or more control signal pathways are provided between a junction plate control connection receiver and a corresponding set of inner connection interfaces. 1. A riser tree controls adapter , comprising: i. an outer riser tree controls adapter housing defining an inner outer riser tree controls adapter housing annulus;', 'ii. an orientation port extending from an outer surface of the outer riser tree controls adapter housing into the inner outer riser tree controls adapter housing annulus;', 'iii. an orientation pin configured to be slidingly received into the orientation port and extend a predetermined length into the inner outer riser tree controls adapter housing annulus;', 'iv. an inner connection interface disposed at a predetermined location within the inner outer riser tree controls adapter housing annulus and having a predetermined portion accessible from the inner outer riser tree controls adapter housing annulus; and', 1. a junction plate housing configured to removably receive a controls umbilical; and', '2. a junction plate control connection receiver adapted to receive a controls umbilical connection and provide a control signal pathway between the junction plate control connection receiver and the inner connection interface; and, 'v. a control umbilical junction plate attached to the outer surface of the outer riser tree controls adapter housing, the control umbilical junction plate comprising], 'a. an outer riser tree controls adapter, comprising i. an inner riser tree controls adapter housing configured to be received into the inner outer riser tree controls adapter housing annulus, the inner riser tree controls adapter housing defining an ...

FLEXIBLE PIPE

The present invention provides a flexible pipe having excellent blister resistance in a high-temperature and high-pressure environment even though including a thick resin pipe. The flexible pipe includes a resin pipe having a thickness of greater than 5 mm. The resin pipe is formed from a resin having a COpermeability coefficient P(CO) of 20×10cm·cm/cm·s·cmHg or lower at 150° C., a CHpermeability coefficient P(CH) of 10×10cm·cm/cm·s·cmHg or lower at 150° C., a ratio D(CO)/S(CO) between a COdiffusion coefficient D(CO) and a COsolubility coefficient S(CO) of 3×10Pa·m/s or higher at 150° C., and a ratio D(CH)/S(CH) between a CHdiffusion coefficient D(CH) and a CHsolubility coefficient S(CH) of higher than 15×10Pa·m/s at 150° C. 1. A flexible pipe comprisinga resin pipe having a thickness of greater than 5 mm,{'sub': 2', '2', '4', '4', '2', '2', '2', '2', '2', '2', '4', '4', '4', '4', '4', '4, 'sup': −9', '3', '2', '−9', '3', '2', '−5', '2', '−5', '2, 'the resin pipe being formed from a resin having a COpermeability coefficient P(CO) of 20×10cm·cm/cm·s·cmHg or lower at 150° C.; a CHpermeability coefficient P(CH) of 10×10cm·cm/cm·s·cmHg or lower at 150° C.; a ratio D(CO)/S(CO) between a COdiffusion coefficient D(CO) and a COsolubility coefficient S(CO) of 3×10Pa·m/s or higher at 150° C.; and a ratio D(CH)/S(CH) between a CHdiffusion coefficient D(CH) and a CHsolubility coefficient S(CH) of higher than 15×10Pa·m/s at 150° C.'}2. The flexible pipe according to claim 1 ,wherein the resin does not break in Izod impact testing at −40° C.3. The flexible pipe according to claim 1 ,wherein the resin is a fluororesin or polyether ether ketone.4. The flexible pipe according to claim 1 , which is a riser pipe or a flow line. The present invention relates to flexible pipes.Pipes used in offshore oil fields include risers (pipes for pumping up crude oil), umbilicals (integration of pipes for supplying chemicals for crude oil viscosity reduction for the purpose of controlling the ...

Apparatus and Method for Monitoring the Mechanical Properties of Subsea Longitudinal Vertical Components in Offshore Drilling and Production Applications

An apparatus to monitor the loads and mechanical behavior of subsea longitudinal vertical components of off shore drilling and production platforms (SLVCs) uses sensors attached directly to the tendons by adhesive or by friction mount. The sensors are typically in a sensor ring assembly which is placed around the perimeter of the SLVC. Ruggedized cables carry the sensor reading from the ring assembly to the SLVC working platform and to a control center for monitoring the action and stresses on the tension legs. The system may be deployed on existing SLVCs or may be installed on new construction during initial assembly and installation. 1. An apparatus for measuring the mechanical properties of an SLVC , comprising:a. A sensor ring assembly mounted substantially about the outer perimeter of the SLVC at a desired location the sea surface;b. A fiberoptic sensor mounted in the ring and in communication with the SLVC, said sensors adapted for collecting at least one of the following data relating to the stress, strain, compression, expansion, twisting of the SLVC as it responds to subsea environmental conditions; andc. An umbilical cable attached to the sensors for communicating sensor data to the surface.2. The apparatus of claim 1 , the fiberoptic sensor adapted for collecting the temperature of the SLBC.3. The apparatus of claim 1 , wherein the sensor ring assembly further comprises:a. A ring which is adapted to be placed around a perimeter of the SVLC;b. Means for securing the ring to the SVLC in a manner rigidly coupling the fiberoptic sensor to the SVLC;c. Wherein the fiberoptic sensor includes sensor elements mounted in the ring and in communication SVLC; andd. Wherein the umbilical cable is ruggedized and extends along the outer periphery of the tension leg from the sensor ring to the surface.4. The apparatus of further comprising a cover enveloping the sensors for protecting them from the environment.5. The apparatus of claim 4 , wherein the cover is a polymer ...

Drag Reduction Method

A drag reduction apparatus for reducing the aerodynamic drag on a bluff body with a blunt trailing edge caused by fluid flow characteristics at the wake of the bluff body, the drag reduction apparatus comprising: one or more control elements configured to be coupled to the bluff body and to move with respect to the bluff body, whereby the movement of the one or more control elements controls fluid flow at the wake of the bluff body to reduce the drag caused by fluid flow instabilities and environmental asymmetries. 1. A drag reduction apparatus for reducing the aerodynamic drag on a bluff body with a blunt trailing edge caused by fluid flow characteristics at the wake of the bluff body , the drag reduction apparatus comprising:one or more control elements configured to be coupled to the bluff body and to move with respect to the bluff body, whereby the movement of the one or more control elements controls fluid flow at the wake of the bluff body to reduce the drag caused by fluid flow instabilities and environmental asymmetries.2. A drag reduction apparatus according to claim 1 , wherein the one or more control elements are control surfaces configured to oscillate with respect to the bluff body to control fluid flow claim 1 , the drag reduction apparatus optionally further comprising one or more actuators configured to cause the one or more control surfaces to oscillate with respect to the bluff body.3. (canceled)4. A drag reduction apparatus according to claim 2 , further comprising a processor configured to execute a control algorithm so as to generate at least one control signal for controlling the oscillation of the one or more control surfaces claim 2 , wherein each control signal optionally comprises:a first signal component having at least one frequency component to control oscillation of the at least one control surface with respect to the bluff body; anda second signal component configured to control the mean position of the at least one control surface ...

WIRELESS FLOW RESTRICTOR OF A FLOWMETER

The disclosed embodiments include a wireless restrictor that may be used as a laminar flow element in a flow meter or a mass flow controller. Embodiments of the wireless restrictor include a single machined part that contains both the features of a tapered restrictor and crushable positioning protrusions. 1. A wireless flow restrictor comprising:an elongated tapered cylindrical body having a first end and a second end, wherein the first end has a larger diameter than the second end;a first set of protrusions located on the first end of the elongated tapered cylindrical body; 'wherein the first set of protrusions, the second set of protrusions, and the elongated tapered cylindrical body are machined as a single part.', 'a second set of protrusions located on the second end of the elongated tapered cylindrical body; and'}2. The wireless flow restrictor of claim 1 , wherein the first set of protrusions and second set of protrusions contain a same number of protrusions.3. The wireless flow restrictor of claim 1 , wherein the first set of protrusions and second set of protrusions are configured to enable the wireless flow restrictor to be properly centered to a mating tapered bore.4. The wireless flow restrictor of claim 3 , wherein the first set of protrusions and second set of protrusions include at least three protrusions.5. The wireless flow restrictor of claim 3 , wherein the first set of protrusions protrude a specified distance from the first end of the elongated tapered cylindrical body and second set of protrusions protrude the specified distance from the second end of the elongated tapered cylindrical body.6. The wireless flow restrictor of claim 3 , wherein the first set of protrusions and second set of protrusions are crushable within the mating tapered bore claim 3 , wherein crushing the protrusions provides a retaining force to keep the wireless flow restrictor in a final location.7. The wireless flow restrictor of claim 6 , wherein the wireless flow ...

AN UNBONDED FLEXIBLE ARMORED RISER PIPE

An unbonded flexible armored pipe for transportation of fluids. The pipe has a center axis and a length and includes a carcass and an innermost sealing sheath with an inner surface surrounding the carcass. The carcass includes at least one elongate armor element wound to surround the center axis with a winding angle to the center axis defining a winding direction and a supporting surface facing towards the inner surface of the innermost sealing sheath and with a supporting surface radius Sr. The supporting surface includes a primary surface area and a plurality of restraining regions in the form of orifices in and/or protuberances and/or indentations from the primary surface area, wherein the restraining regions each have a length determined along the winding direction of the elongate armor element which is up to about Sr times Π. 147-. (canceled)48. An unbonded flexible armored pipe for transportation of fluids , having a center axis and a length and comprising a carcass and an innermost sealing sheath with an inner surface surrounding said carcass , wherein the carcass comprises at least one elongate armor element wound to surround the center axis with a winding angle to the center axis defining a winding direction and a supporting surface facing towards the inner surface of the innermost sealing sheath and with a supporting surface radius Sr , wherein the supporting surface of said carcass comprises a primary surface area and a plurality of restraining regions in the form of orifices in and/or protuberances and/or indentations from said primary surface area , wherein the restraining regions each have a length determined along the winding direction of the elongate armor element which is up to about Sr times Π.49. The unbonded flexible armored pipe of claim 48 , wherein the restraining regions each have a length determined along the winding direction of the elongate armor element which is up to about ½ Sr.50. The unbonded flexible armored pipe as claimed in claim ...

EROSION CONTROL MAT SYSTEM

A concrete mat apparatus, includes a plurality of elongated concrete members, each member being aligned with and next to another concrete member. Each of the concrete members has an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper or lower surface. Reinforcement extends from a first end portion of each concrete member to a second end portion thereof, the reinforcement including a plurality of longitudinally extending reinforcement bars and a plurality of encircling tie bars at spaced apart intervals. Cabling connects each of the elongated concrete members to another of the elongated concrete members. The combination of elongated concrete members has a width and a length that is at least twice as long as the width. The upper inclined surfaces of one of the elongated concrete members forms a plane with the lower inclined surface of an adjacent elongated concrete member. A plurality of loops are provided along opposed edges of the mat, each loop formed by a portion of the cabling. The loops can be spaced between about one and three feet (30.5 and 91.4 cm) apart. 129-. (canceled)30. A concrete mat apparatus , comprising:(a) a plurality of elongated concrete members, each elongated concrete member being aligned with and next to another elongated concrete member;(b) each of the elongated concrete members having an upper generally flat surface, a lower generally flat surface, and a plurality of inclined surfaces that each extend away from an upper generally flat or lower generally flat surface;(c) reinforcement that extends from a first end portion of each elongated concrete member to a second end portion of each elongated concrete member, said reinforcement including a plurality of longitudinally extending reinforcement rods and a plurality of stirrups located at spaced apart intervals, each said stirrup encircling multiple of said longitudinally extending reinforcing rods;(d) cabling ...

ANTI-OSCILLATION APPARATUS AND TECHNIQUE FOR SECURING WIND TURBINE BLADES AGAINST OSCILLATIONS

The invention relates to a wind turbine blade oscillation preventer comprising an aperture and a sleeve and having a peripheral extent and a longitudinal extent, the preventer being configured for removable application over a wind turbine blade and configured to extend longitudinally thereover and peripherally thereabout; the preventer having a non-aerodynamic exterior surface which exhibits a rough surface capable of disrupting smooth or laminar airflow over a substantial portion of the longitudinal and peripheral extent of the sleeve when the preventer is in place on a wind turbine blade. The preventer further comprises a smooth interior surface extending along a substantial portion of the longitudinal extent of the sleeve. The invention also relates to a method of application of a blade oscillation preventer over wind turbine blades which comprise serrations at a trailing edge thereof. 1. A wind turbine blade oscillation preventer comprising an aperture and a sleeve and having a peripheral extent and a longitudinal extent ,said preventer being configured for removable application over a wind turbine blade and configured to extend longitudinally thereover and peripherally thereabout;said preventer having a non-aerodynamic exterior surface which exhibits a rough surface capable of disrupting smooth or laminar airflow over a substantial portion of said longitudinal and peripheral extent of said sleeve when said preventer is in place on a wind turbine blade;and wherein said preventer further comprises a smooth interior surface extending along a substantial portion of said longitudinal extent of said sleeve and wherein said preventer comprises a resilient collar at said aperture portion.2. The preventer of claim 1 , wherein said smooth interior surface is formed from an abrasion resistant claim 1 , low-friction material3. The preventer of claim 1 , wherein said smooth interior surface extends from an aperture region of said sleeve and internally within said sleeve.4. ...

Protection device for deep flexible uprise pipeline

FIELD: transport. SUBSTANCE: flexible pipeline or hydrocarbons transportation system between the installation, located on the seabed and the vessel on the sea surface. Uprise pipeline is equipped with a device for its protection against impact which closes at least the top of the uprise pipeline. The device to protect the uprise pipeline is formed by flexible element and a multitude of individual hollow components, each of which is suspended on chains or ropes. This device is equipped with tensile or tightening devices, which is preferably attached to the lower end of the device to protect the uprise pipeline. EFFECT: protection of upper part of uprise pipeline. 13 cl, 8 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 328 589 (13) C2 (51) ÌÏÊ E21B 43/013 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005120150/03, 11.11.2003 (30) Êîíâåíöèîííûé ïðèîðèòåò: 27.12.2002 (ïï.1-13) NO 20026270 (73) Ïàòåíòîîáëàäàòåëü(è): ÑÒÀÒÎÉË ÀÑÀ (NO) (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 11.11.2003 (72) Àâòîð(û): ÁÎÍÍÅÌÀÈÐÅ Áàçèëå (NO), ÃÓÄÌÅÑÒÀÄ Îâå Òîáèàñ (NO), ˨ÑÅÒ Ñâåéíóíã (NO) (45) Îïóáëèêîâàíî: 10.07.2008 Áþë. ¹ 19 2 3 2 8 5 8 9 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 4490121 À, 25.12.1984. RU 2146633 Ñ1, 20.03.2000. US 4604961 À, 12.08.1986. GB 2297530 À, 07.08.1996. GB 2306933 À, 14.05.1997. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 27.07.2005 2 3 2 8 5 8 9 R U (87) Ïóáëèêàöè PCT: WO 2004/059119 (15.07.2004) C 2 C 2 (86) Çà âêà PCT: NO 03/00378 (11.11.2003) Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó (54) ÇÀÙÈÒÍÎÅ ÓÑÒÐÎÉÑÒÂÎ ÄËß ÃËÓÁÎÊÎÂÎÄÍÎÃÎ ÃÈÁÊÎÃÎ ÂÎÑÕÎÄßÙÅÃÎ ÒÐÓÁÎÏÐÎÂÎÄÀ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ñèñòåìàì ñ ãèáêèì âîñõîä ùèì òðóáîïðîâîäîì, ïðåäíàçíà÷åííûì äë ðàáîòû â ãëóáîêèõ âîäàõ, çàáèòûõ ëüäîì, ãäå íóæíî çàùèùàòü íå âåñü ãèáêèé òðóáîïðîâîä, à ...

PROTECTIVE DEVICE FOR DEEP-WATER FLEXIBLE RISING PIPELINE

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 120 150 (13) A (51) ÌÏÊ E21B 17/01 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005120150/03, 11.11.2003 (71) Çà âèòåëü(è): ÑÒÀÒÎÉË ÀÑÀ (NO) (30) Ïðèîðèòåò: 27.12.2002 NO 20026270 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 Áþë. ¹ 02 (74) Ïàòåíòíûé ïîâåðåííûé: Ïîëèêàðïîâ Àëåêñàíäð Âèêòîðîâè÷ (86) Çà âêà PCT: NO 03/00378 (11.11.2003) Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó (54) ÇÀÙÈÒÍÎÅ ÓÑÒÐÎÉÑÒÂÎ ÄËß ÃËÓÁÎÊÎÂÎÄÍÎÃÎ ÃÈÁÊÎÃÎ ÂÎÑÕÎÄßÙÅÃÎ R U Ôîðìóëà èçîáðåòåíè 1. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè äë òðàíñïîðòèðîâêè óãëåâîäîðîäîâ ìåæäó óñòàíîâêîé (29), ðàñïîëîæåííîé íà ìîðñêîì äíå, è ñóäíîì (10), íàõîä ùèìñ íà ïîâåðõíîñòè (14) ìîð , îòëè÷àþùèåñ òåì, ÷òî âîñõîä ùèé òðóáîïðîâîä (18) ñíàáæåí óñòðîéñòâîì (20) äë åãî çàùèòû îò óäàðîâ, çàêðûâàþùèì ïî ìåíüøåé ìåðå âåðõíþþ ÷àñòü âîñõîä ùåãî òðóáîïðîâîäà (18) è ñíàáæåííûì ðàñò ãèâàþùèì èëè íàò æíûì óñòðîéñòâîì (22), êîòîðîå ïðèêðåïëåíî ïðåäïî÷òèòåëüíî ê íèæíåìó êîíöó óñòðîéñòâà (20) äë çàùèòû âîñõîä ùåãî òðóáîïðîâîäà. 2. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè ïî ï.1, â êîòîðûõ óñòðîéñòâî (20) äë çàùèòû âîñõîä ùåãî òðóáîïðîâîäà ïîäâåøåíî ê ñóäíó (10). 3. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè ïî ï.1, â êîòîðûõ óñòðîéñòâî (20) äë çàùèòû âîñõîä ùåãî òðóáîïðîâîäà ïîäâåøåíî ê ïîãðóæíîìó òóðåëüíîìó çàãðóçî÷íîìó áóþ (19). 4. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè ïî ëþáîìó èç ïï.1-3, â êîòîðûõ ðàñò ãèâàþùåå óñòðîéñòâî (22) îáðàçîâàíî êîëüöåâûì òåëîì (22), îêðóæàþùèì ãèáêèé âîñõîä ùèé òðóáîïðîâîä (18). 5. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè ïî ëþáîìó èç ïï.1-3, â êîòîðûõ ðàñò ãèâàþùåå óñòðîéñòâî (22) ïðèøâàðòîâàíî ê ìîðñêîìó äíó (16) ñ ïîìîùüþ òðîñîâ (30). 6. Ãèáêèé âîñõîä ùèé òðóáîïðîâîä èëè ñèñòåìà çàãðóçêè ïî ëþáîìó èç ïï.1-3, â êîòîðûõ âíóòðåíí ïîâåðõíîñòü ðàñò ãèâàþùåãî óñòðîéñòâà (22) íà ...

Clamping device for pipe connection of submarine

본 발명은 해저 파이프 연결용 클램핑 장치에 관한 것으로, 더욱 상세하게는 육지에서 섬으로 수돗물, 유류 및 가스와 같은 연료 등을 공급하기 위해 육지와 섬 사이의 해저에 설치되는 파이프가 조류에 의해 휘거나 파손되는 것을 방지하기 위하여 해저에 설치된 연결와이어에 파이프를 안정적으로 고정시키는 해저 파이프 연결용 클램핑 장치에 관한 것이다. S자형의 단면구조로 형성된 제1 클램프 및 역S자형의 단면구조를 갖는 제2 클램프가 서로 결합하여 형성되는 해저 파이프 연결용 클램핑 장치에 있어서, 해저 파이프 연결용 클램핑 장치는, 상기 제1 클램프와 제2 클램프의 상부 단부에 제1 클램프 및 제2 클램프를 탄성 결합하는 탄성결합부가 형성되고, 상부 절곡부에 의해 일측면이 개방된 상부개방부에 파이프를 수용하는 파이프 수용부가 형성되며, 하부 절곡부에 의해 타측면이 개방된 하부개방부에 의해 연결와이어의 외면이 감싸면서 상기 제1 클램프와 제2 클램프를 결합하는 그립부가 형성되는 것을 특징으로 한다.

Ultradeep sea oil-gas field engineering development system

本发明公开了一种极深水海洋油气田工程开发系统，包括海面浮式生产装置、一级立管支撑浮筒、一级刚性立管、二级立管支撑浮筒、二级刚性立管、水中采油设备、上部柔性跨接管、张力系泊装置以及海底井口装置；所述的张力系泊装置包括张力缆绳和桩基。本发明将海底的采油设备安装在距离海面下200-350m处的二级立管支撑浮筒上，由于压力降低和温度升高，从而降低了对采油设备的设计要求与技术难度，进而极大地降低建造、安装与维修成本。本发明采用两级立管支撑浮筒分级承担水中刚性立管的载荷，避免了单一立管支撑浮筒的尺寸过大，同时有效地减少了海面浮式生产装置支撑的总重量，降低了海面浮式生产装置的设计要求。

Heat dissipation

本发明涉及热耗散。本发明提出一种从由弯曲加强件覆盖的柔性管的区域散热的方法和设备。所述方法包括的步骤是，经由柔性管周围的外表面中的至少一个通道提供水从由弯曲加强件覆盖的柔性管的区域流向柔性管的未覆盖区域的流动路径。

Underwater Moving Apparatus Enhanced Maneuver Performance

본 발명은 기동성능이 향상된 수중 이동장치를 제공하기 위한 것이다. 본 발명에 의한 기동성능이 향상된 수중 이동장치는, 추진기가 설치된 이동장치 바디와, 이동장치 바디의 외면에 이동장치 바디의 길이 방향으로 마련되는 복수의 장홈과, 이동장치 바디의 외면으로부터 돌출될 수 있도록 이동장치 바디의 복수의 장홈에 이동장치 바디의 길이 방향으로 배치되어 내외 방향으로 이동 가능하게 설치되는 복수의 릿지와, 복수의 릿지를 이동장치 바디의 외면으로부터 돌출되도록 이동시키기 위해 이동장치 바디 내부에 설치되는 릿지 구동기와, 이동장치 바디의 수중 이동 중 이동장치 바디의 받음각이 일정 각도 이상 커질 때 릿지가 이동장치 바디의 외면으로부터 돌출되어 이동장치 바디의 외면에서 와류를 형성함으로써 이동장치 바디에서의 유동 박리를 방지할 수 있도록 릿지 구동기를 제어하는 컨트롤러를 포함하는 점에 특징이 있다. An object of the present invention is to provide an underwater mobile device with improved starting performance. The underwater mobile device with improved starting performance according to the present invention includes a mobile device body having a propeller installed therein, a plurality of grooves provided on an outer surface of the mobile device body in a longitudinal direction of the mobile device body, A plurality of ridges arranged in a longitudinal direction of the mobile device body in a plurality of grooves of the mobile device body so as to be movable in the inside and outside direction and to move the plurality of ridges so as to protrude from the outer surface of the mobile device body, And a ridge protruding from the outer surface of the mobile device body to form a vortex at the outer surface of the mobile device body when the angle of attack of the mobile device body is greater than a certain angle during underwater movement of the mobile device body, And a controller for controlling the ridge actuator so as to prevent flow separation It is characterized in that.

Method and device and linking surface to seabed for submarine pipeline

本发明涉及用于安装在大深度上的水下管道的底部至表面连接系统,该系统首先包括:一个竖直的塔,该塔由至少一个与锚系(6,8,16)配合工作且承载至少一个适于降至海底(18)的浮子(5,14)构成,所述系统其次包括至少一个从所述浮子(5,14)延伸至表面支承体(1)的连接管(4,3)。按照本发明,所述连接管是升管,其壁由刚性的钢管构成,所述浮子(5,14)安装在位于最后温跃层下面的深度上。

Riser having angle sensor

본 발명은 라이저에 관한 것으로, 보다 상세하게는 라이저의 앵글을 측정하는 앵글센서가 각 라이저 파이프 측에 일체로 구성된 앵글센서를 가진 라이저에 관한 것이다. 본 발명에 의한 라이저는 복수의 라이저 파이프가 상하방향으로 연결되어 구성되고, 각 라이저 파이프의 일측에 하나 이상의 앵글센서가 센서블록을 매개로 설치되며, 상기 앵글센서는 상기 센서블록에서 상기 라이저 파이프의 외측으로 돌출가능하게 설치되는 것을 특징으로 한다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riser, and more particularly, to a riser having an angle sensor having an angle sensor integrally formed with each riser pipe for measuring an angle of a riser. The riser according to the present invention is characterized in that a plurality of riser pipes are connected in the vertical direction and one or more angle sensors are installed on one side of each riser pipe via a sensor block, And is protruded outward.

DEVICE FOR MODIFICATION OF A FLUID FLOW

1. Устройство для модификации потока текучей среды для создания турбулентности в некоторой текучей среде при ее перемещении относительно устройства для модификации потока текучей среды в некотором поле потока текучей среды, содержащее: ! создающие турбулентность элементы, размещенные во фрактальной конфигурации, каждый из которых имеет первую поверхностную часть, к которой обеспечено протекание текучей среды, и вторую поверхностную часть, вдоль которой обеспечено протекание текучей среды; ! вставку для расположения в указанном устройстве для создания препятствия протеканию текучей среды между расположенными рядом указанными вторыми поверхностными частями по меньшей мере двух создающих турбулентность элементов и ! опору для поддержки создающих турбулентность элементов в текучей среде для обеспечения возможности перемещения текучей среды относительно создающих турбулентность элементов и указанной вставки. ! 2. Устройство для модификации потока текучей среды по п.1, в котором вставка выполнена с возможностью соединения с каждым по меньшей мере из двух создающих турбулентность элементов, так что расположение вставок является симметричным относительно центральной точки поля потока текучей среды. ! 3. Устройство для модификации потока текучей среды по п.1, в котором вставка выполнена по существу из жесткого материала, так что она по существу способна выдерживать поток текучей среды, действующий на нее. ! 4. Устройство для модификации потока текучей среды по п.1, в котором вставка выполнена из пластмассы или металла. ! 5. Устройство для модификации потока текучей среды по п.1, в котором вставка имеет прини� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 141 516 (13) A (51) МПК F15D 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): Империал Инновейшнс Лимитед (GB) (21)(22) Заявка: 2010141516/06, 07.04.2009 Приоритет(ы): (30) Конвенционный приоритет: 10.04.2008 GB 0806504.7 (85) Дата начала рассмотрения заявки PCT на ...

Layer system with hard and soft layers and shovel

Durch eine einfache geometrische Anordnung wird ein Haifischhauteffekt erreicht, der insbesondere bei Kompressorschaufeln eingesetzt werden kann. By a simple geometric arrangement, a sharkskin effect is achieved, which can be used in particular with compressor blades.

Microelectronic module, module array and method for flow influence

本发明涉及用于流动影响的微电子模块、模块阵列和方法。说明用于影响流体的流动的微电子模块。所述模块具有至少一个电压转换器，所述电压转换器用于将所提供的第一电压转换成更高的、更低的或相同的第二电压。所述模块进一步具有至少一个主动流动影响元件，所述主动流动影响元件用于影响环流和/或溢流所述流动影响元件的流体的方向和/或速度。至少所述电压转换器和所述主动流动影响元件被布置在薄层的平面的衬底上。流体的方向和/或速度的影响依赖于根据由所述电压转换器提供给所述流动影响元件的第二电压的流体动力加速度。

Microelectronic module, matrix modules and method of influencing flow

Предложен микроэлектронный модуль для воздействия на поток текучей среды. Модуль содержит по меньшей мере один преобразователь напряжения для преобразования поданного первого напряжения в более высокое, более низкое или равное ему второе напряжение. Модуль содержит также по меньшей мере один активный элемент воздействия на поток для воздействия на направление и/или скорость текучей среды, которая обтекает активный элемент воздействия на поток и/или протекает над ним. Преобразователь напряжения и/или активный элемент воздействия на поток размещены на тонкопленочной планарной подложке. Воздействие на направление и/или на скорость текучей среды зависит от гидродинамического ускорения, которое является функцией второго напряжения, поданного преобразователем напряжения на активный элемент воздействия на поток. Технический результат - обеспечение возможности регулирования направления аэродинамических поверхностей крыла. 4 н. и 11 з.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 713 576 C2 (51) МПК H01L 27/20 (2006.01) B64C 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F15D 1/10 (2019.05); B64C 23/005 (2019.05); H01L 27/20 (2019.05); B64C 2230/12 (2019.05); B64D 2211/00 (2019.05); Y02T 50/166 (2019.05); Y02T 50/55 (2019.05) (21)(22) Заявка: 2016128952, 15.07.2016 15.07.2016 Дата регистрации: 05.02.2020 12.08.2015 DE 10 2015 010 233.8 (43) Дата публикации заявки: 18.01.2018 Бюл. № 2 (56) Список документов, цитированных в отчете о поиске: US 20120193483 A1, 02.08.2012. WO 2009124913 A3, 15.10.2009. US 7624941 B1, 01.12.2009. US 8181910 B2, 22.05.2012. (45) Опубликовано: 05.02.2020 Бюл. № 4 2 7 1 3 5 7 6 R U (54) Микроэлектронный модуль, матрица модулей и способ воздействия на поток (57) Реферат: Предложен микроэлектронный модуль для активный элемент воздействия на поток воздействия на поток текучей среды. Модуль размещены на тонкопленочной планарной содержит по меньшей мере один преобразователь ...

Heat exchanging surface

FIELD: heat-and-power engineering.SUBSTANCE: invention relates to a power system, specifically to heat exchangers, cooling systems for industrial gas turbine power plants and aircraft engines. Heat exchange surface (1) contains separated recesses (2) with variable depth and width, each of which, in their longitudinal plane of symmetry, in the direction of movement of the external coolant flow, is made of two smoothly connecting in bottom part (14) of input divergent (7) and output convergent (8) areas. Recesses (2) in plan are made of confused forms from their input (3) to the output (4) edges connected by side walls (5) and (6) with an angle of confusion between them α=30°, and the longitudinal plane of symmetry of the grooves is rotated with an angle β=30°…45° relative to the direction of movement of the aforementioned external coolant flow. Input divergent area (7) occupies 1/3 of the length of recess (2) L to its maximum depth h and is connected by rounding to input edge (3) of the recess along its perimeter with a radius R=h, the ratio of the maximum depth of recess (2) to the hydraulic diameter din terms of h/din this area increases from zero to 0.44, output convergent area (8) is inclined at angle γ=22° to the initially smooth heat exchange surface (1), has a length equal to (2/3)L, is connected by rounding to input edge (4) of recess (2) along its perimeter with a radius R=0.25R, and the value of h/din this area decreases from 0.44 to zero. Side walls of the grooves and the bottom part connecting them are concave with a radius of curvature R ≈ (4…6)R.EFFECT: invention allows to increase the cooling efficiency of heat-stressed elements, to increase the resource of their work while simplifying the manufacturing technology and reducing costs in the production process.5 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 675 733 C1 (51) МПК F28F 3/00 (2006.01) F15D 1/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ...

Method of airfoil active deformation

FIELD: transport. SUBSTANCE: invention relates to aircraft engineering. Method of active deformation by feedback of airfoil 1 comprising resilient material arranged on part of airfoil surface. Resilient material stays in contact with air flow 7. Note here that said resilient material can be deformed by one or several drives 4 with shape memory of resilient material in contact with air flow. Drives can control computer 5 connected with transducers 8 defining airfoil flow. Proposed method may be, in particular, used for deformation of aircraft wing bearing surface at, particularly, subsonic speeds. EFFECT: better adaptability of airfoil fairness to various flight conditions, higher safety. 21 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 485 013 (13) C2 (51) МПК B64C 21/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010137681/11, 02.02.2009 (24) Дата начала отсчета срока действия патента: 02.02.2009 (73) Патентообладатель(и): ТАЛЬ (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 12.02.2008 FR 0800748 (72) Автор(ы): СИМОН Жорж-Анри (FR) (43) Дата публикации заявки: 20.03.2012 Бюл. № 8 2 4 8 5 0 1 3 (45) Опубликовано: 20.06.2013 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: US 2005230546 А1, 20.10.2005. US 5662294 А, 02.09.1997. US 2002125376 A1, 21.09.2002. US 6164598 А, 26.12.2000. SU 12098 A1, 31.12.1929. 2 4 8 5 0 1 3 R U (86) Заявка PCT: EP 2009/051158 (02.02.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.09.2010 (87) Публикация заявки РСТ: WO 2009/101001 (20.08.2009) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ АКТИВНОЙ ДЕФОРМАЦИИ АЭРОДИНАМИЧЕСКОГО ПРОФИЛЯ (57) Реферат: Изобретение относится к области авиации. Способ активной деформации при помощи обратной связи, аэродинамического профиля (1), содержащего эластичный материал, находящийся на части поверхности ...

Method of reducing drag of moving object and device for its embodiment

FIELD: aerodynamics. SUBSTANCE: method consists in change of direction of incoming flow by forming rotational flow near moving object by means of surfaces made in the form of members reflecting the incoming flow and located in such way that parallel direction of running-off flow is ensured relative to incoming flow. Center of rotational flow is located at distance exceeding thickness of boundary layer of flow for each reflecting surface. Besides, reflecting members are spatially located in billiard trajectories. Distance between reflecting members are selected depending on position of center of rotation of flow outside reflecting members and that of rotational flow at a distance exceeding thickness of boundary layer of flow for each reflecting member. EFFECT: reduction of drag; enhanced efficiency. 14 cl, 6 dwg ‘9 дьс ПЫ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 173 658. (51) МПК? 13) СЛ В 64 С 23/06, Е 150 1/10 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2000131567/28, 18.12.2000 (24) Дата начала действия патента: 18.12.2000 (46) Дата публикации: 20.09.2001 (56) Ссылки: КУ 2094313 СЛ, 27.10.1997. и$ 3523661 А, 11.08.1970. 4$ 35178264 А, 11.05.1971. ЕР 0846617 А2, 10.06.1998. И$ 3934844 А, 21.01.1976. Ц$ 5875627 А, 02.03.1999. (98) Адрес для переписки: 121165, Москва, а/я 32, пат.пов. Т.Н.Коноплянниковой (71) Заявитель: Немыкин Артур Степанович, Нефедов Сергей Иванович (72) Изобретатель: Немыкин А.С., Нефедов С.И. (73) Патентообладатель: Немыкин Артур Степанович, Нефедов Сергей Иванович (54) СПОСОБ УМЕНЬШЕНИЯ ЛОБОВОГО СОПРОТИВЛЕНИЯ ДВИЖУЩЕГОСЯ ОБЪЕКТА И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ (57) Реферат: Изобретение относится к области аэродинамики. Способ уменьшения лобового сопротивления заключается в изменении направления набегающего потока путем создания около движущегося объекта при помощи поверхностей вращающегося потока. При этом поверхности выполняют в виде отражающих набегающий поток элементов и располагают ...

Buoyancy system for large scale underwater risers

ABSTRACT OF THE DISCLOSURE A buoyancy system for large scale underwater risers is provided, comprising a plurality of canisters. Each of the canisters extends partially around the circumference of a riser -- usually, two canisters and the support structure surround a riser -- and a plurality of canisters is associated with each riser section. Air is injected into the lowermost canister or canisters, at a pressure sufficient to displace the contained water within the canister; and when the water level within a canister is lowered sufficiently that a port in a cross connected tube is uncovered, the compressed air enters the tube and travels upwardly to the next canister above, where the unwatering sequence is repeated. Because very great depth can be accommodated --3,000 meters or more -- provision is made for reflooding the canisters in the event of an emergency. Additionally, because of pneumatic considerations, different configurations of cross tube are provided for installation in the canisters at varying depths. The support structure for the canisters, and the plastics materials of which the canisters are made -- cross linked polyethylene is preferred -- preclude permanent deformation and damage to the canisters during storage or upon impact with an unyielding body or surface.

Jumper support arrangements for hybrid riser towers

PROCESS FOR ACTIVE DEFORMATION OF AERODYNAMIC PROFILE

La présente invention concerne un procédé de déformation active par asservissement d'un profil aérodynamique (1) comportant un matériau élastique (3), appliqué sur une partie de la surface du profil aérodynamique (1), ledit matériau élastique étant en contact avec un écoulement fluide (3) ; ledit matériau élastique étant déformable par un ou plusieurs actionneurs (4, 22, 23, 24, 25) à mémoire de forme, placés en contact avec le matériau élastique, lesdits actionneurs étant commandés par un calculateur (5) relié à des capteurs (8).Ce procédé s'applique notamment à une déformation d'une voilure d'une aile d'un aéronef en vol, notamment subsonique. The present invention relates to a method of active deformation by servocontrolling an aerodynamic profile (1) comprising an elastic material (3), applied to a part of the surface of the aerodynamic profile (1), said elastic material being in contact with a flow fluid (3); said elastic material being deformable by one or more shape memory actuators (4, 22, 23, 24, 25) placed in contact with the elastic material, said actuators being controlled by a computer (5) connected to sensors (8). This method applies in particular to a wing deformation of a wing of an aircraft in flight, particularly subsonic.

Patent FR2179154B1

Deep water riser or column for connecting floating support to underwater point, comprises flexible part connected to underwater point, and rigid part connected to flexible part and floating support

Conduite pour grandes profondeurs d'eau permettant le transfert d'un fluide entre un support flottant (1) et un point situé en dessous et à une distance éloignée de la surface de l'eau, caractérisée en ce qu'elle comporte :- au moins une partie flexible (7) en liaison par une de ses extrémités avec le point situé en dessous de la surface, et- au moins une partie rigide (6) en liaison avec la partie flexible par une de ses extrémités et par la deuxième extrémité avec le support flottant,- ladite partie rigide étant maintenue au support flottant à l'aide de moyens de maintien (9) permettant à cette dernière d'être essentiellement mise en tension par son propre poids. Riser pour la production d'effluents pétroliers

CYLINDRIQ BODY

PROTECTIVE DEVICE FOR PIPING DEPOSITED IN PART ON A SEA BOTTOM

The invention concerns a protective device for a pipe partially laid on the seafloor, comprising at least a protective element (9) arranged around at least one portion of the pipe part (4) to be protected and characterised in that said protective element (9) is mounted rotating freely about said portion.

Hybrid riser column with a rigid central section connecting two flexible hoses

Conduite hybride pour grande profondeur.Elle est du type en ce qu'elle comprend une partie centrale rigide (8) métallique dont une extrémité supérieure (9) est reliée à au moins un tronçon supérieur (5) de conduite flexible de longueur prédéterminée et dont l'autre extrémité inférieure (10) est reliée à un tronçon flexible (11) de longueur au moins égale à la longueur du tronçon supérieur de conduite flexible.

BENDING STIFFENER FOR AN EXTENSION ELEMENT INTENDED TO BE INTRODUCED INTO A RANGE OF WATER

Le raidisseur (16) comporte : - un corps (20) délimitant une lumière centrale (32) de passage de l'élément allongé (14), d'axe central (A-A'), - un ensemble (22 ; 24) de renfort du corps (20), au moins partiellement reçu dans le corps (20), l'ensemble de renfort (22 ; 24) comportant au moins une région circonférentielle s'étendant autour de l'axe central (A-A'), - au moins un capteur de mesure (60) d'une déformation au sein du raidisseur (16); Le ou chaque capteur de mesure de déformation (60) est porté par l'ensemble de renfort (22 ; 24) du corps (20).