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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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01-12-2020 дата публикации

Рабочий эталон контрольно-измерительного стенда для моделирования массо-центровочных и инерционных характеристик контролируемого объекта

Номер: RU0000201170U1
Автор: Александр Васильевич Ключников
Принадлежит: Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом"), Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр-Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина"

Полезная модель относится к измерительной технике, а именно к средствам контроля качества функционирования контрольно-измерительных стендов, и может быть использована для диагностики технического состояния стендов, принцип действия которых основан на методе астатического маятника. Рабочий эталон контрольно-измерительного стенда для моделирования массо-центровочных и инерционных характеристик контролируемого объекта представляет собой габаритно-массовый макет контролируемого объекта, выполненный в виде двух металлических дисков, соединенных жестким валом, имитирующих посадочные поверхности контролируемого объекта. Устройство выполнено с возможностью крепления к торцам вала сменных грузов, причем на обоих торцах каждого из которых имеются места крепления под калиброванные контрольные грузы, размещенные в заданных угловых положениях относительно системы координат макета, на заданных расстояниях от центра масс и от оси симметрии макета. Технический результат - обеспечение достоверности результатов контроля качества функционирования стенда в заданных диапазонах измерений массо-центровочных и инерционных характеристик контролируемого объекта (твердого тела вращения), например летательного аппарата. 1 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 201 170 U1 (51) МПК G01M 1/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01M 1/10 (2020.02) (21)(22) Заявка: 2020101493, 13.01.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 01.12.2020 (45) Опубликовано: 01.12.2020 Бюл. № 34 2 0 1 1 7 0 R U (56) Список документов, цитированных в отчете о поиске: RU 2445592 C1, 20.03.2012. Абышев Н.А., Васильев М.А., Криковцов Д.А., Ключников А.В. Стенд для комплексного определения массо-геометрических характеристик деталей методом качающейся платформы // Труды международного симпозиума "Надежность и качество" - Пенза: ПТУ, 2015. - Т. 1. - С. 320-321. RU 2434212 C1, 20.11.2011. FR 2712085 A1, 12 ...

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Номер записи: 1
05-04-2012 дата публикации

Calibration method for multi-component force measuring spindle unit used in tire testing machine

Номер: US20120079868A1
Автор: Toru Okada, Yasunori Kakebayashi
Принадлежит: Kobe Steel Ltd

A transformation matrix used for finding actual loads acting on a tire can be reliably calibrated. Using the calibrated transformation matrix, the translation and moment loads exerted on the tire can be calculated with a high degree of accuracy in a multi-component force measuring spindle unit including two multi-component force measuring sensors on locations spaced-apart from each other along the axis direction of a spindle shaft. The calibration method includes a step of measuring loads exerted on the spindle shaft, a calculation step using a measured load vector including the loads obtained in the measurement step and the transformation matrix applied to the measured load vector, to find an actual load vector including actual loads on the tire. Before the calculation step, a calibration step determines the measured load vector under a plurality of linearly independent test conditions and calibrates the transformation matrix based on the determined measured load vector.

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Номер записи: 2
26-07-2012 дата публикации

Method and system for determining non-uniformity characteristics of a vehicle tire and rim

Номер: US20120186344A1
Автор: Michael Wayne Douglas, William B. Feero
Принадлежит: Individual

A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured to apply a load to the tire during a rotation of the wheel assembly on the spindle, and a controller configured to determine a first force variation vector of the wheel assembly, prompt a user to rotate the tire with respect to the rim, determine a second force variation vector of the wheel assembly with the tire rotated with respect to the rim, and determine a force variation of at least one of the tire and the wheel using the first and second force variation vectors. The system also outputs at least one of the determined force variation vector values.

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Номер записи: 3
14-02-2013 дата публикации

Apparatus and method for measuring moment of inertia

Номер: US20130036801A1
Автор: Bryan Bingham, Michael S. Watson, Steven R. Wassom
Принадлежит: Utah State University Research Foundation USURF

A method and apparatus for determining the mass moment of inertia of a given object is disclosed, The apparatus is a mass moment of inertia platform whereon objects to be measured can be placed. The platform uses flex pivots as torsional springs and the method ensures the flex pivots are procured and assembled in such a way so as to limit flex pivot misalignment systemic errors thereby resulting in a highly accurate and low-cost apparatus for measuring the mass moment of inertia.

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Номер записи: 4
04-04-2013 дата публикации

Measurement Device of Position of Center of Gravity of Vehicle to be Measured on Truck Scale and Truck Scale

Номер: US20130081451A1
Автор: Kamada Takeaki, Tamura Takashi
Принадлежит: Kamacho Scale Co., Ltd.

As a measurement table (), an object provided with a flat surface () having an area on which all wheels of a vehicle can be mounted at the same time and a front wheel mounting table () which is disposed in front of the flat surface () and is lifted by a step of a predetermined height is used, a wheel position detector () which is capable of detecting a front wheel position and a rear wheel position of a vehicle to be measured is provided, a computation processing device () is provided with anterior-posterior displacement calculation means, an inter-axle distance calculation means (), a vehicle inclination calculation means (), a front wheel axle load calculation means (A), a rear wheel axle load calculation means (B), an anterior-posterior gravity center position calculation means (), a storage means (), an anterior-posterior gravity center displacement calculation means (), and a vehicle gravity center height position calculation means (), and from a gravity center displacement which is calculated from anterior-posterior gravity center position information calculated on the flat surface () and anterior-posterior gravity center position information in the state in which front wheels are mounted on the front wheel mounting table () and a vehicle inclination which is calculated by the vehicle inclination calculation means (), the position of the height of the center of gravity of the vehicle to be measured is calculated. 11313101011515151211531313510. An apparatus for determining the center of gravity of a vehicle to be measured being applied to a truck scale including load cells (A-D) provided individually at around four corners of a measuring table () below a bottom surface thereof , the measuring table () being provided with a flat surface () having a surface area on which all wheels (A-D) of a vehicle () to be measured can be simultaneously placed and a front wheel platform () located at a position in a frontal part of the flat surface () and raised to a specific ...

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Номер записи: 5
08-08-2013 дата публикации

Balance Test Indexing Tool for Balance-Testing a Rotor

Номер: US20130199292A1
Автор: Allen, IV George I., Leveille Anderson S.
Принадлежит: MOSCOW MILLS, INC.

A balance test indexing tool for use in a balance testing machine to assist a user in testing unbalance in a rotor. The tool includes a rotor mount face disposed on the rotor being tested. The rotor mount face may be machined in a surface of the rotor or provided in a separate rotor mount temporarily fixed to the rotor. The tool also includes a rotor mount receiver configured to receive the rotor mount face in the balance testing machine. The rotor mount face and rotor mount receiver are configured to provide an indexing coupling that allows the rotor to be readily indexed to any of a plurality of index positions for unbalance testing in the testing machine. The tool allows multiple balancing runs to be made with relatively little effort needed to re-index the rotor. In some embodiments the tool includes a kinematic coupling that provides highly accurate and repeatable indexing. 1. A system , comprising: a rotor mount surface on the rotor; and', 'a rotor mount receiver configured to be coupled between the drive mechanism of the balance testing machine and said rotor mount surface;', 'wherein said rotor mount surface and said rotor mount receiver cooperate with one another to provide an indexing coupling between the drive mechanism and the rotor when the rotor, with said rotor mount surface and said rotor mount receiver are installed in the balance testing machine., 'a balance test indexing tool for assisting with balance-testing a rotor of machinery using a balance testing machine having a drive mechanism, said balance test indexing tool including2. The system according to claim 1 , wherein the rotor mount surface is formed on one of a rotor mount configured to be fixedly secured to the rotor or a surface of the rotor.3. A system according to claim 2 , wherein said indexing coupling is a kinematic coupling.4. A system according to claim 3 , wherein said rotor mount surface and said rotor mount receiver cooperate to provide a plurality of indexing stops for indexing ...

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Номер записи: 6
14-11-2013 дата публикации

System for characterizing tire uniformity machines and methods of using the characterizations

Номер: US20130298656A1
Автор: Byron R. Stanoszek, Daniel P. Furst, Jason A. McIntyre, Ronald E. Symens, Troy L. Anenson
Принадлежит: Commercial Time Sharing Inc

A tire uniformity machine includes an apparatus for receiving and rotating a tire. The apparatus includes opposed spindles for receiving, inflating and rotating a tire, and a load wheel applied to the rotating tire to obtain tire test results. A spindle alignment assembly is associated with the opposed spindles to align the spindles with one another each time a tire is received. At least one characterizing device is associated with components of the apparatus to characterize forces of the opposed spindles and the characterized forces are used in adjusting tire test results.

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Номер записи: 7
14-11-2013 дата публикации

SYSTEM FOR CHARACTERIZING TIRE UNIFORMITY MACHINES AND METHODS OF USING THE CHARACTERIZATIONS

Номер: US20130298657A1
Автор: Haines Michael, Hasbach Alexander, JR. David L., Mitchell Brian, Poling, Stanoszek Byron R.
Принадлежит:

A tire uniformity machine includes an apparatus for receiving and rotating a tire. The apparatus includes opposed spindles for receiving, inflating and rotating a tire, and a load wheel applied to the rotating tire to obtain tire test results. A spindle alignment assembly is associated with the opposed spindles to align the spindles with one another each time a tire is received. At least one characterizing device is associated with components of the apparatus to characterize forces of the opposed spindles and the characterized forces are used in adjusting tire test results. 1. A tire uniformity machine , comprising:an apparatus for receiving and rotating a tire, said apparatus including opposed spindles for receiving, inflating and rotating the tire, and a load wheel applied to the rotating tire to obtain tire test results;a spindle alignment assembly associated with said opposed spindles to align said spindles with one another each time a tire is received; andat least one characterizing device associated with components of said apparatus to characterize forces of said opposed spindles, wherein said characterized forces are used in adjusting tire test results.2. The machine according to claim 1 , further comprising:a computer, said at least one characterizing device generating a characterizing signal received by said computer which uses said characterizing signal to adjust the tire test results.3. The machine according to claim 2 , wherein said spindle alignment assembly comprises:an upper spindle and chuck assembly having an upper spindle encoder assembly associated therewith to determine an upper spindle angular position; anda lower spindle and chuck assembly having a lower spindle encoder assembly associated therewith to determine a lower spindle angular position,said computer controlling at least one of said spindle and chuck assemblies to as to align said upper and lower spindle angular positions with one another.4. The machine according to claim 3 , wherein ...

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Номер записи: 8
26-12-2013 дата публикации

SYSTEM AND METHOD FOR GROUND VIBRATION TESTING AND WEIGHT AND BALANCE MEASUREMENT

Номер: US20130340511A1
Автор: Davis George V., Miller Mark E.
Принадлежит: The Boeing Company

An apparatus for lifting an aircraft may include a plurality of lifting mechanisms mounted on a supporting surface. Each lifting mechanism may be configured to impart an upward force on a component of the aircraft for lifting the aircraft off the supporting surface. The apparatus may include a beam structure configured to be mounted to the lifting mechanisms. The apparatus may also include a lifting beam suspended from the beam structure. A measurement device may be mounted to the lifting beam and may be configured to engage a jack point associated with the component to determine a weight of the aircraft when the aircraft is lifted off the supporting surface. 1. An apparatus for supporting an aircraft during ground vibration testing , comprising:a plurality of lifting mechanisms mounted on a supporting surface, each lifting mechanism being configured to impart an upward force on a component of the aircraft for lifting the aircraft off of the supporting surface;a beam structure configured to be mounted to the plurality of lifting mechanisms;a lifting beam suspended from the beam structure; anda measurement device mounted to the lifting beam and being configured to engage a jack point associated with a component of the aircraft and determine a weight of the aircraft when the aircraft is lifted off the supporting surface.2. The apparatus of claim 1 , wherein:the jack point is associated with a landing gear of the aircraft.3. The apparatus of claim 1 , wherein:the beam structure comprises a pair of generally parallel hanger beams mounted to the lifting mechanism and arranged in spaced relation to one another;each one of the hanger beams having a hanger rod extending downwardly therefrom; andthe lifting beam having opposing ends coupled to a hanger rod.4. The apparatus of claim 3 , wherein:the hanger rod is comprised of an upper portion joined to a lower portion by a threaded sleeve; andthe threaded sleeve being adjustable to adjust a total length of the hanger rod.5. ...

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Номер записи: 9
26-12-2013 дата публикации

ROTOR BALANCING METHOD

Номер: US20130340521A1
Автор: CLARK Daniel, TUPPEN Stephen John
Принадлежит: ROLLS-ROYCE PLC

A method of balancing a physical rotor includes: determining a first balance state of the physical rotor at one or more rotational frequencies; identifying one or more balance zones on a surface of the rotor; providing a computerised simulation of the rotor having the first balance state; providing a first test mass in a first test location within one of the balance zones on the rotor simulation; determining a second balance state of the rotor simulation; providing at least one subsequent test mass in at least one subsequent test location within a balance zone on the rotor simulation and determining at least one subsequent balance state of the rotor simulation; selecting a mass and location from one of the first and subsequent test masses and test locations; and performing a material deposition process to add the selected mass of material to the selected location on the physical rotor. 1. A method of balancing a physical rotor , the method comprising the steps of:determining a first balance state of the physical rotor;identifying one or more balance zones on a surface of the rotor;providing a computerised simulation of the rotor having the first balance state;providing a first test mass in a first test location within one of the balance zones on the rotor simulation;determining a second balance state of the rotor simulation;providing at least one subsequent test mass in at least one subsequent test location within a balance zone on the rotor simulation and determining at least one subsequent balance state of the rotor simulation;selecting a mass and location from one of the first and subsequent test masses and test locations which provides a predetermined balance state; andperforming a material deposition process to add the selected mass of material to the selected location on the physical rotor.2. A method according to claim 1 , wherein the selected mass and location comprises the test mass and test location having a minimal balance mass which provides the ...

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Номер записи: 10
02-01-2014 дата публикации

Dynamic rack cabinet stability testing

Номер: US20140000351A1
Автор: Eric A. Stegner, James M. DUNBAR, Robert W. Stegner
Принадлежит: International Business Machines Corp

An apparatus for stability testing of a wheeled assembly includes a straight fulcrum fixed relative to a horizontal surface. The straight fulcrum includes a straight edge parallel to the horizontal surface and located a first height above the horizontal surface. A first position mechanism includes a first position angle. The first position mechanism and straight edge define the first position angle as an obtuse angle and define a test area. A force mechanism vertically offset from the straight edge. The force mechanism applies a force to the wheeled assembly so when the wheeled assembly is positioned in a first position with one side of the wheeled assembly parallel to the first position angle, the force mechanism pulls the wheeled assembly in a direction toward a second position and the wheeled assembly rotates on a vertical axis. The second position includes a portion of the wheeled assembly contacting the straight edge.

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Номер записи: 11
09-01-2014 дата публикации

TIRE BALANCE MEASURING DEVICE

Номер: US20140007679A1
Автор: Kanei Naofumi, KUROHASHI Michiya, Nakayama Maiko
Принадлежит:

The present invention provides a tire balance measuring device capable of minimizing the influence exerted on a measured value due to an inclination of a lock shaft even when the lock shaft (fitted shaft) is inclined in a random direction at an angle created by a gap corresponding to a fitting allowance every time a tire is supplied with gas. The tire balance measuring device of this invention comprises a sensor for measuring the inclination of the lock shaft, and a computing unit for computing an amount of change in a unbalance of the tire from an output value received from the sensor after the tire is supplied with gas, and correcting a result of measuring a balance of the tire using the computed amount of change in the unbalance. 1. A tire balance measuring device , comprising:a rim rotation supporting shaft vertically and rotatably supported via a bearing by a housing;a lower rim mounted on the rim rotation supporting shaft;a locking shaft inserted into a fitting hole in the rim rotation supporting shaft;an upper rim mounted on the locking shaft and arranged above the lower rim;a locking component for causing the locking shaft to be engaged at a desired height with the rim rotation supporting shaft and fixed thereto;at least two sensors for measuring an inclination of the locking shaft, anda correction computing unit for computing an amount of change in an unbalance of a tire based on an output value received from the sensors after the tire is supplied with gas, and correcting a result of measuring a balance of the tire using the computed amount of change in the unbalance.2. The tire balance measuring device according to claim 1 , wherein the correction computing unit computes an amount by which the inclination of the locking shaft is changed from a reference inclination of the locking shaft and an amount by which eccentricity in a position of center of gravity of the locking shaft equipped with the upper rim is changed from that of the locking shaft having the ...

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Номер записи: 12
20-02-2014 дата публикации

Method of determining the stress that should be applied to a tyre during an indoor endurance bench test

Номер: US20140052324A1
Автор: Marco Andrea MAGGI
Принадлежит: Bridgestone Corp

A method of determining the stress that should be applied to a tyre during an indoor endurance bench test. The method includes the steps of driving a vehicle along a sample road route; measuring variations in the longitudinal speed and position of the vehicle during its journey along the sample road route; and calculating the inertial forces acting on the vehicle during its journey along the sample road route, on the basis of variations in the longitudinal speed and position of the vehicle.

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Номер записи: 13
27-03-2014 дата публикации

System and method for determining inertia properties of a rigid body

Номер: US20140088914A1
Автор: Robert Klöpper
Принадлежит: Resonic GmbH

System for determining inertia properties of a rigid body, particularly the inertia tensor, the mass and/or the position of the center of mass, comprising: a carrier ( 10 ), which is designed for suspending a rigid body ( 2 ) from the carrier ( 10 ), such that the rigid body ( 2 ) is able to perform movements along the six degrees of freedom of the rigid body (B), at least six sensors ( 100 ) providing output signals for detecting the movement of the rigid body ( 2 ) along the six degrees of freedom of the rigid body ( 2 ), a measuring device ( 110 ) cooperating with the sensors ( 100 ), wherein the measuring device ( 110 ) is configured to measure said movement of the rigid body ( 2 ) by means of said output signals (ŝ 1 (t k )), and an analysing means ( 20 ) configured for determining from said output signals (ŝ 1 (t k )) said inertia properties (r s ). Furthermore, the invention relates to a method for determining the inertia properties (r s ).

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Номер записи: 14
06-01-2022 дата публикации

A device for determining orientation of an object

Номер: US20220003547A1
Автор: Tilak SRINIVASAN
Принадлежит: Individual

The present disclosure relates to a device ( 100 ) for determining orientation of an object ( 3 ). The device ( 100 ) includes a hollow-spherical enclosure ( 2 ) supportable by the object ( 3 ) and a plurality of sensors (S 1 . . . Sn) circumferentially disposed in the hollow-spherical enclosure ( 2 ). A gimbal assembly ( 1 ) is secured in the hollow-spherical enclosure ( 2 ), where at least one gimbal ring of the gimbal assembly ( 1 ) is fixed perpendicular to a gravitational weight a gravitational vector (G) of the gimbal assembly ( 1 ). Further, at least one light source ( 8 ) is secured in the gimbal assembly ( 1 ) and the gimbal assembly ( 1 ) is configured to align the at least one light source ( 8 ) relative to orientation of the object ( 3 ) such that, the light emitted by the at least one light source ( 8 ) is incident on at least one sensor of the plurality of sensors (S 1 . . . Sn), to determine orientation of the object ( 3 ).

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Номер записи: 15
05-01-2017 дата публикации

TIRE INSPECTION DEVICE AND TIRE POSTURE DETECTION METHOD

Номер: US20170003198A1
Автор: Imamura Morihiro, Matsunaga Kunio, TACHIBANA Makoto, YONEDA Hiroaki
Принадлежит: Litsubishi Heavy Industries Machineary Technology Corporation

A tire inspection device according to the present invention includes a support portion which supports a tire such that a center axis of the tire is positioned along a vertical direction, a lifting and lowering portion which moves the tire and a rim relative to each other in the vertical direction to fit the rim to the tire, a position detection unit which detects a position of a surface of the tire in the vertical direction at three or more detection points, and a posture detection unit which detects posture information of the tire based on position information detected by the position detection unit. 1. A tire inspection device , comprising:a support portion which supports a tire such that a center axis of the tire is positioned along a vertical direction;a lifting and lowering portion which moves the tire and a rim relative to each other in the vertical direction to fit the rim to the tire;a position detection unit which detects a position of a surface of the tire in the vertical direction at three or more detection points; anda posture detection unit which detects posture information of the tire based on position information detected by the position detection unit.2. The tire inspection device according to claim 1 ,wherein the position detection unit is provided in a region on one side in the center axis direction of the tire, and detects the position information in a state where the position detection unit does not come into contact with the detection point.3. The tire inspection device according to claim 1 ,wherein when viewed from the vertical direction, the position detection unit is provided at a position which is positioned inside an outer circumferential edge of the tire and outside an outer circumferential edge of the rim, andwherein the detection point is positioned on a side wall which is a surface facing the center axis direction in the tire.4. The tire inspection device according to claim 1 ,wherein the position detection unit is integrally provided ...

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Номер записи: 16
07-01-2021 дата публикации

Rotor Balance Weight System

Номер: US20210003012A1
Автор: Rosborough Richard W.
Принадлежит: UNITED TECHNOLOGIES CORPORATION

A rotor has a rotor body having: a flange with a circumferential array of discontiguous apertures; and a surface spaced apart from the flange. One or more rotor balance weight assemblies each have a weight and a fastener. The weight has: a passageway having a first end and a second end; an internal thread along the passageway; and a boss at the first end of the passageway. The boss is in a respective one of the apertures. The fastener has: a shank having a first end and a second end and an external thread engaged to the passageway internal thread; an engagement feature at the shank first end for engagement by a tool to turn the fastener; and a head at the second end contacts the surface. 119.-. (canceled)20. A rotor body having:an axis;a flange with a circumferential array of apertures; anda surface spaced radially apart from the flange and having a plurality of recesses, each aligned with a respective associated one of the apertures.21. The rotor body of further comprising:a radial flange, the axial flange extending from a junction with the radial flange.22. The rotor body of further comprising:a shaft portion of the rotor body, the radial flange extending radially outward from the shaft portion.23. The rotor body of wherein:the circumferential array of apertures is 8-100 apertures.24. The rotor body of wherein:the circumferential array of apertures is 12-36 apertures.25. The rotor body of wherein:each said recess is blind.26. The rotor body of wherein:each said recess is doubly concave27. The rotor body of wherein:the circumferential array of apertures is 8-100 apertures.28. The rotor body of wherein:the circumferential array of apertures is 12-36 apertures.29. The rotor body of wherein:each said recess is blind.30. The rotor body of wherein:each said recess is doubly concave31. A rotor including the rotor body of and further comprising:a plurality of stages of blades. This is a continuation of U.S. patent application Ser. No. 15/841,882, filed Dec. 14, 2017, and ...

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Номер записи: 17
07-01-2021 дата публикации

BALANCING OF A ROTATIONALLY SYMMETRICAL COMPONENT, PARTICULARLY A ROTOR COMPONENT

Номер: US20210003013A1
Автор: Senusta Onur, Weber Michael
Принадлежит: MTU Aero Engines AG

The invention relates to a method for determining a balancing removal process for a balancing device for balancing a rotationally symmetrical component, particularly a rotor component, particularly of a turbomachine, a combination of machining lengths and depths being calculated, taking into account a pre-defined maximum machining length and minimum machining depth, in such a way that, with reliable combinations for compensating the same unbalance, the machining length of the calculated combination is longer than the machining length of at least one other permissible combination and, at the same time, the machining depth of the calculated combination is shallower than the machining depth of said other combination.

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Номер записи: 18
04-01-2018 дата публикации

DYNAMOMETER CONTROL DEVICE AND METHOD FOR ESTIMATING MOMENT OF INERTIA USING SAME

Номер: US20180003589A1
Автор: AKIYAMA Takao, Asakura Nobuhiko
Принадлежит:

To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control device is provided with an excitation signal generating unit for generating a randomly or periodically fluctuating excitation signal, a speed controller for generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensator for generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adder for generating a torque electric current command signal by adding the input signals generated by the speed controller and the shaft torque compensator to the excitation signal. 1. A dynamometer control device that generates a torque current command signal to a dynamometer connected to a test piece via a shaft , the dynamometer control device comprising:a rotation speed detector that detects a rotation speed of the dynamometer;a shaft torque sensor that detects shaft torque acting on the shaft;an excitation signal generation unit that generates a randomly or periodically fluctuating excitation signal;a speed controller that generates an input signal to the dynamometer such that a detection value of the rotation speed detector matches a predetermined command rotation speed;a shaft torque compensator that generates an input signal to the dynamometer such that vibration of the shaft is suppressed by using the detection value of the shaft torque sensor; andan adder that generates a torque current command signal by adding input signals generated by way of the speed controller and the shaft torque compensator to the excitation signal.2. The dynamometer control device according to claim 1 , wherein the shaft torque compensator generates an input signal to the ...

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Номер записи: 19
03-01-2019 дата публикации

ALL-IN-ONE INTEGRATED SENSING DEVICE FOR MACHINE CONTROL

Номер: US20190003825A1
Автор: Crozier Scott Tasman, Nau Kevin Ray
Принадлежит: TRIMBLE NAVIGATION LIMITED

An integrated sensing device with a suite of sensors assists construction machine operators in finding the correct level to dig a ditch/trench. The sensing device includes a gravity sensor to determine angles, a laser distance meter (LDM), and a laser receiver for detecting a known jobsite elevation. The sensing device is mounted to the dipper stick of an excavator; the gravity sensor detects the angle of the stick, and the laser receiver detects a laser plane of light that represents a known jobsite elevation. The LDM is aimed at another member of the machine that moves in a predetermined path as the bucket is rotated, and the distance between the LDM and the target member is used to calculate the vertical elevation of the working tool edge. A display graphically shows the operator the proper dig depth and the present position of the working tool edge. 1. An apparatus , comprising: (i) a GPS receiver;', '(ii) an electronic angle sensor;', '(iii) an electronic distance sensor, having an output port that is directed at a predetermined target, and which determines a distance to said target without making physical contact with said target;', '(iv) a processing circuit and a memory circuit including instructions executable by said processing circuit; and', '(v) a housing, in which said GPS receiver, said electronic angle sensor, said electronic distance sensor, said processing circuit, and said memory circuit are all mounted with said housing;, '(a) an integrated plurality of sensors that is mounted to a construction machine which has a first movable mechanical member that exhibits movement through a pathway that is variable with respect to gravity, and has a second movable mechanical member that includes a working tool edge, wherein said second movable mechanical member has a known physical moving relationship to said first movable mechanical member through a predetermined range of motions, said integrated plurality of sensors comprising (i) said integrated plurality ...

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Номер записи: 20
12-01-2017 дата публикации

TIRE SENSOR-BASED VEHICLE STATE ESTIMATION SYSTEM AND METHOD

Номер: US20170010184A1
Автор: Singh Kanwar Bharat
Принадлежит:

A vehicle state estimation system and method uses an observer model to make cornering stiffness estimates from tire-based sensor data and vehicle-based sensor data throughout transient and non-transient operational maneuvers of a vehicle. A cornering stiffness identifier extracts transient-state cornering stiffness estimates from the cornering stiffness estimates made by the observer model and extracts from the transient-state cornering stiffness estimates an optimal transient-state cornering stiffness estimate having a substantially highest confidence measure for use by a vehicle control system. 1. A vehicle state estimation system comprising:a vehicle supported by at least one tire, the vehicle operating in transient maneuver states or non-transient maneuver states throughout operational maneuvers of the vehicle;at least one tire-based sensor mounted to the at least one tire and operative to generate tire-based sensor data;at least one vehicle-based sensor mounted to the vehicle and operative to generate vehicle-based sensor data;an observer model operative to make cornering stiffness estimates from the tire-based sensor data and the vehicle-based sensor data throughout the operational maneuvers of the vehicle; anda cornering stiffness identifier operative to extract and output transient-state cornering stiffness estimates from the observer model cornering stiffness estimates throughout the operational maneuvers of the vehicle.2. The vehicle state estimation system of claim 1 , wherein the cornering stiffness identifier is operative to extract from the transient-state cornering stiffness estimates an optimal transient-state cornering stiffness estimate having a substantially highest confidence measure.3. The vehicle state estimation system of claim 2 , wherein the tire-based sensor data comprises at least a pressure measurement of tire inflation pressure and a temperature measurement of tire temperature.4. The vehicle state estimation system of claim 2 , wherein ...

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Номер записи: 21
11-01-2018 дата публикации

TIRE CHARACTERISTIC VALUE MEASUREMENT APPARATUS AND TIRE CHARACTERISTIC VALUE MEASUREMENT SYSTEM

Номер: US20180011041A1
Автор: SEIMOTO Yasutaka, UEDA Tatsuya
Принадлежит:

A tire characteristic value measurement apparatus () includes a support arm () which is provided in vertical movement means ( to ). The support arm () bears a tire (T) on a roller conveyor () from below and has electrically insulative properties. The tire characteristic value measurement apparatus () further includes electric resistance value detection means ( to ) which is provided in the vertical movement means ( to ). The electric resistance value detection means ( to ) detects an electric resistance value of the tire T borne by the support arm (). 1. A tire characteristic value measurement apparatus comprising:conveyance means for conveying a tire;vertical movement means which is disposed below the conveyance means and is able to vertically move;a bearing member which is provided in the vertical movement means and bears the tire on the conveyance means from below in accordance with a rise, and in which at least a contact surface with respect to the tire has electrically insulative properties; andelectric resistance value detection means which is provided in the vertical movement means and detects an electric resistance value of the tire borne by the bearing member.2. The tire characteristic value measurement apparatus according to claim 1 , further comprising:weight detection means which is provided in the vertical movement means and detects a weight of the tire borne by the bearing member.3. The tire characteristic value measurement apparatus according to claim 2 , a fluid pressure cylinder which is installed such that an axial direction is oriented toward an upward/downward direction,', 'an offset support member of which a base end portion is coupled to an upper end of the fluid pressure cylinder and of which a tip end portion is positioned at a position offset to the side lower than the upper end of the fluid pressure cylinder when the fluid pressure cylinder contracts, and', 'guide means which is coupled to the offset support member and guides a vertical ...

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Номер записи: 22
10-01-2019 дата публикации

Method And Apparatus For Weighing An Elongate Object

Номер: US20190010928A1
Автор: Irissappane Vijayasankar, Vind Flemming
Принадлежит:

Method and apparatus for weighing an elongate object extending between a root end and a tip end thereof, said method including: providing a respective tip load measurement gauge and root load measurement gauge; and providing a suspending arrangement configured for suspending said elongate object from said tip load measurement gauge and from said root load measurement gauge; and suspending said object in a horizontal orientation; and recording a tip load and a root load from respective said load measurement gauges, said method being additionally characterised by: providing a weighing area; and fixing an inclinometer to said suspended blade and load gauge arrangement; and suspending said elongate object from said tip load gauge and from said root load gauge; and adjusting the horizontality of said elongate object in response to signals from said inclinometer prior to said step of recording said tip load and said root load. Alternatively, an inclinometer may be replaced by placing a first distance sensor at a first location on a ground surface; and placing a second distance sensor at a second location on said ground surface; and suspending said elongate object from said tip load gauge and from said root load gauge such that a said root end thereof is suspended proximate said first distance sensor and a said tip end thereof is suspended proximate said second distance sensor; and measuring a first distance between said first distance sensor and a said root portion of said elongate object and; and measuring a second distance between said second distance sensor and a said tip portion of said elongate object; and then adjusting the horizontality of said elongate object in response to said first and second distance readings prior to said step of recording said tip load and said root load. 115-. (canceled)17. The method according to claim 16 , wherein the wind turbine blade is of a particular type claim 16 , and the predefined angular orientation is associated with the wind ...

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Номер записи: 23
10-01-2019 дата публикации

DYNAMIC BALANCE TESTING DEVICE

Номер: US20190011322A1
Автор: ISHITOYA Satoshi
Принадлежит: KOKUSAI KEISOKUKI KABUSHIKI KAISHA

A dynamic balance testing device includes a plurality of support rollers having respective rotation axes extending in a predetermined direction, the plurality of support rollers being configured to support a specimen in internal contact with an inner periphery of the specimen in such a manner that the specimen is rotatable about a central axis of the inner periphery, the plurality of support rollers including, a first support roller having a first rotation axis that is parallel to the central axis of the inner periphery of the specimen, and a second support roller having a second rotation axis that is parallel to the central axis of the inner periphery of the specimen and is positionally different from the first rotation axis of the first support roller. 1. A dynamic balance testing device , comprising: a first support roller having a first rotation axis that is parallel to the central axis of the inner periphery of the specimen; and', 'a second support roller having a second rotation axis that is parallel to the central axis of the inner periphery of the specimen and is positionally different from the first rotation axis of the first support roller., 'a plurality of support rollers having respective rotation axes extending in a predetermined direction, the plurality of support rollers being configured to support a specimen in internal contact with an inner periphery of the specimen in such a manner that the specimen is rotatable about a central axis of the inner periphery, the plurality of support rollers including2. The dynamic balance testing device according to claim 1 ,wherein a distance between farthest positions on the first and second support rollers from each other in a direction perpendicular to the predetermined direction is narrower than a diameter of the inner periphery.3. The dynamic balance testing device according to claim 1 ,wherein the first support roller and the second support roller have an identical diameter and are disposed at an identical ...

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Номер записи: 24
15-01-2015 дата публикации

Balancing Device, Uniformity Device and Methods for Utilizing the Same

Номер: US20150013453A1
Автор: Clark Barry A., Lawson Lawrence J., Reece Robert, Straitiff Donald G.
Принадлежит:

A balancing device, a uniformity device and an apparatus including the balancing device and the uniformity device are disclosed. Each of the balancing device and the uniformity device includes at least one multi-axis transducer. Methods are also disclosed. 1. An apparatus , comprising:a balancing device that determines imbalance of a workpiece, wherein the balancing device includes: a lower workpiece-engaging portion; anda computing resource communicatively-coupled to the lower workpiece-engaging portion by one or more communication conduits,wherein the lower workpiece-engaging portion includes a central shaft having a proximal end and a distal end and an elongated body that extends between the proximal end and the distal end, wherein the lower workpiece-engaging portion includes a motor, wherein the proximal end of the central shaft is connected to the motor, wherein the lower workpiece-engaging portion includes a radially manipulatable workpiece-engaging chuck that is connected to the distal end of the central shaft, wherein the lower workpiece-engaging portion includes at least one multi-axis transducer.2. The apparatus according to claim 1 , wherein information relating to imbalance of the workpiece is provided by the at least one multi-axis transducer and is over-deterministically calculated in terms of at least one group of signals associated with respective axes of at least two axes that are produced by the at least one multi-axis transducer claim 1 , wherein the at least one group of signals include:a group of two or more torque-moment signals with each torque-moment signal associated with a respective axis of the at least two axes, ora group of two or more force signals with each force signal associated with a respective axis of the at least two axes, wherein all axes of the at least two axes share the same origin and are orthogonal to one another.3. The apparatus according to claim 2 , wherein each signal of the at least one group of signals is ...

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Номер записи: 25
09-01-2020 дата публикации

CHASSIS DYNAMOMETER, CONTROL METHOD FOR THE SAME, AND CHASSIS DYNAMOMETER PROGRAM

Номер: US20200011765A1
Автор: ADACHI Kaori, NOGUCHI Shinji
Принадлежит: HORIBA, LTD.

A chassis dynamometer that tests a two-wheel drive vehicle includes: a driving wheel side roller on which the driving wheels of the vehicle are placed; a driven wheel side roller on which the driven wheels of the vehicle are placed; a driving wheel side power absorbing part connected to the driving wheel side roller; a driven wheel side power absorbing part connected to the driven wheel side roller; a braking force measuring part that, via the driven wheel side power absorbing part, measures braking force exerted on the driven wheel side roller; and a control part that with use of the braking force measured by the braking force measuring part, sets the control target value of the power absorbing force of the driving wheel side power absorbing part to control the driving wheel side power absorbing part. 1. A chassis dynamometer that tests a two-wheel drive vehicle , the chassis dynamometer comprising:a driving wheel side roller on which driving wheels of the vehicle are placed;a driven wheel side roller on which driven wheels of the vehicle are placed;a driving wheel side power absorbing part connected to the driving wheel side roller;a braking force measuring part that measures braking force exerted on the driven wheel side roller; anda control part that with use of the braking three measured by the braking force measuring part, sets a control target value of power absorbing force of the driving wheel side power absorbing part to control the driving wheel side power absorbing part.2. The chassis dynamometer according to claim 1 , whereinthe control part sets the control target value on a basis of running resistance.3. The chassis dynamometer according to claim 1 , further comprisinga driven wheel side power absorbing part connected to the driven wheel side roller, whereinthe braking force measuring part is one that measures torque exerted on the driven wheel side power absorbing part.4. The chassis dynamometer according to claim 1 , whereinthe control part sets the ...

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Номер записи: 26
09-01-2020 дата публикации

TEST METHOD FOR WEAR RESISTANCE PERFORMANCE, METHOD OF MANUFACTURING TREAD RUBBER, METHOD OF MANUFACTURING TIRE, AND TIRE

Номер: US20200011766A1
Автор: NAKANO Shinya, TADA Toshio
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

A test method of accurately evaluating wear resistance performance of a rubber material when used as a tread rubber of a tire, comprises the steps of: preparing a test piece of the rubber material having a ground contact surface extending in a circumferential direction; abrading the ground contact surface by rolling the test piece on a running surface of a wear testing machine at a slip ratio of not more than 3.5%; and evaluating the wear resistance performance of the test piece by comparing the amount of wear of the test piece with a predetermined threshold value. 1. A test method of evaluating wear resistance performance of a rubber material when used as a tread rubber of a tire , comprisinga step of preparing a test piece of the rubber material having a ground contact surface extending in a circumferential direction,a step of abrading the ground contact surface by rolling the test piece on a running surface of a wear testing machine at a slip ratio of not more than 3.5%, anda step of evaluating the wear resistance performance of the test piece by comparing the amount of wear of the test piece with a predetermined threshold value.2. The test method according to claim 1 , whereinthe wear testing machine is a Laboratory Abrasion Tester LAT100.3. The method according to claim 1 , whereinin the step of abrading the ground contact surface, the contact pressure of the ground contact surface is 0.1 to 1 MPa, the rolling speed is 1 to 50 km/h, and the rolling distance is 10 to 30 km.4. The test method according to claim 1 , wherein{'sup': −5', '1.4, 'in the step of evaluating the wear resistance performance, when the wear amount per unit area (cc/sq·m) of the test piece is less than or equal to a first threshold value which is 3.0×10×the slip ratio(%), the wear resistance performance of the test piece is evaluated as being good.'}5. The test method according to claim 2 , wherein{'sup': −5', '1.4, 'in the step of evaluating the wear resistance performance, when the wear ...

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Номер записи: 27
19-01-2017 дата публикации

LATERAL ROLLOVER RISK WARNING DEVICE

Номер: US20170015265A1
Автор: WATANABE Yutaka
Принадлежит: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY

A lateral rollover risk warning device can report vehicle rollover risk in real time during traveling with no need for inputting radius of a curved path in advance. 1. A lateral rollover risk warning device that is installed in a vehicle that is supported by spring structures on both sides in the right-left direction across a vehicle axis of a vehicle body , respectively , reporting the risk of said vehicle being rolled over , said lateral rollover risk warning device comprising:a vertical direction physical amount detection means for detecting an external force applied in the vertical direction of said vehicle body,a rotational direction physical amount detection means for detecting a rotation around said vehicle axis of said vehicle body,a limit index calculating means that uses the results of detection by said vertical direction physical amount detection means and said rotational direction physical amount detection means to calculate an index of the limit at which said vehicle is led to be rolled over,a right-left direction physical amount detection means for detecting an external force applied in the right-left direction of said vehicle body,a real-time index calculating means that uses the result of detection by said right-left direction physical amount detection means to calculate a comparative index to be compared with said limit index in real time; anda reporting means that uses said limit index and said comparative index to report a piece of lateral rollover risk warning information telling the risk of rolling over.2. The lateral rollover risk warning device according to claim 1 , wherein said limit index calculating means calculates a restoring force losing lateral rollover limit external force claim 1 , which indicates an external force that exceeds the restoring force of said spring structures claim 1 , being applied to said vehicle claim 1 , as said limit index.3. The lateral rollover risk warning device according to claim 1 , wherein said limit index ...

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Номер записи: 28
03-02-2022 дата публикации

TIRE GROUND CONTACT CHARACTERISTIC MEASURING METHOD, TIRE GROUND CONTACT CHARACTERISTIC MEASURING PORTION, AND TIRE GROUND CONTACT CHARACTERISTIC MEASURING SYSTEM

Номер: US20220034755A1
Автор: KAMIKURA Takahisa
Принадлежит: BRIDGESTONE CORPORATION

A tire ground contact characteristic measuring method according to the present invention includes: a reproduction step of reproducing a transient change in a tire attitude that occurs during travel of an actual vehicle on a tire; a stress measurement step of causing stress measuring portion embedded on a rotatable rotary drum to measure stress that is applied to the tire in contact with the rotary drum that is rotationally driven; and a calculation step of calculating tire ground contact characteristics, which are characteristics of a ground contact region of a tread surface of the tire in contact with the rotary drum on the basis of the stress measured by the stress measuring portion. The tire ground contact characteristics calculated in the calculation step are tire ground contact characteristics of the tire corresponding to the tire attitude of the actual vehicle at each point in time during a period where the transient change occurs. 1. A tire ground contact characteristic measuring method comprising:a reproduction step of reproducing a transient change in a tire attitude that occurs during travel of an actual vehicle on a tire;a stress measurement step of causing a stress measuring portion embedded on a rotatable rotary drum to measure stress that is applied to the tire in contact with the rotary drum that is rotationally driven; anda calculation step of calculating tire ground contact characteristics, which are characteristics of a ground contact region of a tread surface of the tire in contact with the rotary drum, on the basis of the stress measured by the stress measuring portion,wherein the tire ground contact characteristics calculated in the calculation step are tire ground contact characteristics of the tire corresponding to the tire attitude of the actual vehicle at each point in time during a period where the transient change occurs.2. The tire ground contact characteristic measuring method according to claim 1 ,wherein, in the stress measurement step ...

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Номер записи: 29
18-01-2018 дата публикации

AUTONOMOUS LOADING SYSTEM AND METHOD FOR OPERATING SAME

Номер: US20180016767A1
Автор: GE Xinyu, Li Jia, Wu Hao
Принадлежит: CATERPILLAR INC.

A hauling machine is disclosed. The hauling machine may include a dump body and an inertial measurement unit (IMU) disposed proximate to the dump body. The IMU may be configured to measure an impact of a payload material on the dump body during a first load cycle, and generate impact data based on the impact of the payload material. The hauling machine may also include a controller in operative communication with the IMU. The controller may be configured to: receive the impact data from the IMU, estimate a center of gravity, a net load, and an amplitude of the impact of the payload material based on the impact data, and determine a desired dumping point of the payload material into the dump body for a second load cycle based on the center of gravity, the net load, and the amplitude of the impact. 1. A hauling machine , comprising:a dump body; measure an impact of a payload material on the dump body during a first load cycle, and', 'generate impact data based on the impact of the payload material; and, 'an inertial measurement unit (IMU) disposed proximate to the dump body, the IMU configured to receive the impact data from the IMU,', 'estimate a center of gravity, a net load, and an amplitude of the impact of the payload material based on the impact data, and', 'determine a desired dumping point of the payload material into the dump body for a second load cycle based on the center of gravity, the net load, and the amplitude of the impact., 'a controller in operative communication with the IMU, the controller configured to2. The hauling machine of claim 1 , further comprising a communication module in operative communication with the controller claim 1 , the communication module configured to communicate with a loading machine that performs autonomous loading of the payload material into the dump body.3. The hauling machine of claim 1 , wherein the controller is further configured to send signals indicative of the desired dumping point to the communication module for ...

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Номер записи: 30
21-01-2016 дата публикации

DUAL HEGO METHOD FOR IDENTIFICATION AND MITIGATION OF AIR-FUEL IMBALANCE FAULTS

Номер: US20160018291A1
Автор: Jankovic Mrdjan J., Magner Stephen William, Santillo Mario Anthony, Uhrich Michael James
Принадлежит:

Systems and methods for identifying and mitigating air-fuel imbalance faults specific to an engine cylinder are provided. In one embodiment, a method comprises indicating a cylinder imbalance by comparing time-aligned readings from exhaust gas oxygen sensors, the exhaust gas oxygen sensors positioned symmetrically opposite each other within an exhaust passage downstream of a catalyst. In this way, an air-fuel imbalance fault may be accurately detected in a non-uniform exhaust flow so that mitigating actions can be taken, resulting in reduced tailpipe emissions. 1. A method , comprising:indicating a cylinder imbalance by comparing time-aligned readings from exhaust gas oxygen sensors, the exhaust gas oxygen sensors positioned symmetrically opposite each other within an exhaust passage downstream of a catalyst.2. The method of claim 1 , wherein comparing time-aligned readings from exhaust gas oxygen sensors comprises computing a ratio of the time-aligned readings from exhaust gas oxygen sensors.3. The method of claim 2 , wherein the cylinder imbalance is indicated when the ratio is outside a threshold range centered at one.4. The method of claim 3 , wherein the threshold range is based on an exhaust gas oxygen sensor setpoint.5. The method of claim 1 , wherein comparing time-aligned readings from exhaust gas oxygen sensors comprises computing a difference of the time-aligned readings from exhaust gas oxygen sensors.6. The method of claim 5 , wherein the cylinder imbalance is indicated when the difference is outside a threshold range centered at zero.7. The method of claim 6 , wherein the threshold range is based on an exhaust gas oxygen sensor setpoint.8. The method of claim 1 , wherein the exhaust gas oxygen sensors comprise two heated exhaust gas oxygen sensors.9. A method claim 1 , comprising:indicating a cylinder imbalance by comparing time-aligned readings from exhaust gas oxygen sensors, the exhaust gas oxygen sensors positioned symmetrically opposite each other ...

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Номер записи: 31
18-01-2018 дата публикации

ROBOT CENTER-OF-GRAVITY DISPLAY DEVICE, ROBOT CONTROL DEVICE, AND ROBOT SIMULATION DEVICE

Номер: US20180017461A1
Автор: ARAI Tomonori
Принадлежит: FANUC Corporation

Provided is a robot center-of-gravity display device including: a specification setting unit that sets specifications including the weights, center-of-gravity positions, and dimensions of components of respective shafts; a posture setting unit that sets position information of the respective shafts; a robot-image generating unit that generates a three-dimensional model image of the robot in a state where the respective shafts are located at the positions indicated by the position information, based on the set position information of the respective shafts and the specifications of the components; a center-of-gravity-position calculation unit that calculates the center-of-gravity position of the overall robot, based on the set position information of the respective shafts and the specifications of the components; an image combining unit that superimposes an indication showing the center of gravity of the overall robot on the three-dimensional model image at the calculated center-of-gravity position; and a display unit that displays the generated image. 1. A robot center-of-gravity display device comprising:a specification setting unit that sets the specifications including, at least, the weights, center-of-gravity positions, and dimensions of components of respective shafts of a robot;a posture setting unit that sets position information of the respective shafts of the robot;a robot-image generating unit that generates a three-dimensional model image of the robot in a state in which the respective shafts thereof are located at the positions indicated by the position information based on the position information of the respective shafts of the robot set by the posture setting unit and the specifications of the components set by the specification setting unit;a center-of-gravity-position calculation unit that calculates the center-of-gravity position of the overall robot based on the position information of the respective shafts of the robot set by the posture setting ...

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Номер записи: 32
17-01-2019 дата публикации

EXCAVATOR

Номер: US20190017248A1
Автор: HIRANUMA Kazunori, Okada Junichi
Принадлежит: SUMITOMO HEAVY INDUSTRIES, LTD.

An excavator attachment is attached to a rotating platform of an excavator. A display unit visually displays a predicted stability indicating stability of the posture of the excavator after the excavator is manipulated. 1. An excavator comprising:an undercarriage;a rotating platform rotatably provided on the undercarriage;an attachment attached to the rotating platform; anda display unit that visually displays a predicted stability indicating stability of the excavator's posture upon the attachment being manipulated.2. The excavator according to claim 1 , further comprising a manipulating means for manipulating the undercarriage and the attachment claim 1 , wherein:the attachment includes a bucket; andbased on a current status condition of the excavator, a relationship between the predicted stability and at least one of bucket position, attachment speed, attachment power, a manipulating-means manipulation variable, and change in the manipulating-means manipulation variable upon the attachment being manipulated is visually displayed on the display unit.3. The excavator according to claim 1 , wherein the display unit displays the predicted stability as a gradient.4. The excavator according to claim 1 , wherein the display unit distinguishably displays an area in which the attachment is operable without restriction claim 1 , and an area in which operation of the attachment should be restricted.5. The excavator according to claim 1 , wherein the predicted stability is changed according to claim 1 , as a status condition of the excavator claim 1 , an inclination angle of the excavator.6. The excavator according to claim 1 , wherein the predicted stability is changed according to claim 1 , as a status condition of the excavator claim 1 , a turning angle of the rotating platform.7. The excavator according to claim 1 , wherein the predicted stability is changed according to claim 1 , as a status condition of the excavator claim 1 , the bucket's weight.8. The excavator ...

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Номер записи: 33
17-01-2019 дата публикации

TEST PIECE CHARACTERISTIC ESTIMATION METHOD AND TEST PIECE CHARACTERISTIC ESTIMATION DEVICE

Номер: US20190017894A1
Автор: AKIYAMA Takao
Принадлежит:

The purpose of the present invention is to provide a test piece characteristic estimation method capable of quickly measuring the moment of inertia of a test piece while taking loss resulting from rotational friction of the test piece into consideration. This test piece characteristic estimation method is provided with a step (S) for measuring a first transfer function G from a torque current command for a dynamometer to output from a shaft torque sensor by vibrationally operating the dynamometer, a step (S) for measuring a second transfer function G from the torque current command to the output of a dynamo rotation speed sensor by vibrationally operating the dynamometer, and steps (S and S) for calculating the value of a ratio obtained by dividing the second transfer function G by the first transfer function G at a prescribed measurement frequency ωand using the ratio value to calculate a moment of inertia Jeg and a rotational friction Ceg. 1. A test piece characteristic estimation method which uses a test system comprising: a dynamometer joined with a test piece via a connecting shaft; a shaft torque sensor which detects shaft torque generated at the connecting shaft; and a revolution speed detector which detects a revolution speed of an output shaft of the test piece or the dynamometer , the method estimating the moment of inertia with an output shaft of the test piece as a rotation shaft , the method comprising the steps of:measuring a first transfer function from a torque current command relative to the dynamometer until an output of the shaft torque sensor by vibrationally operating the dynamometer;measuring a second transfer function from the torque current command until an output of the revolution speed detector by vibrationally operating the dynamometer; andcalculating values of a real part and an imaginary part at a predetermined measurement frequency of a ratio obtained by dividing the second transfer function by the first transfer function, and ...

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Номер записи: 34
21-01-2021 дата публикации

DYNAMIC BALANCE TESTING DEVICE

Номер: US20210018392A1
Автор: ISHITOYA Satoshi
Принадлежит: KOKUSAI KEISOKUKI KABUSHIKI KAISHA

A dynamic balance testing device includes a vibrating unit configured to rotatably hold a predetermined rotating body being a specimen, a first spring configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a direction parallel to a rotation axis of the predetermined rotating body, and at least three second springs configured to elastically support the vibrating unit and restrict displacement of the vibrating unit in a predetermined direction orthogonal to the rotation axis. The at least three second springs are attached to the vibrating unit on a same predetermined plane, and the vibrating unit holds the predetermined rotating body such that a projection of a center of gravity of the predetermined rotating body onto the predetermined plane is substantially at the same position as a position where the first spring is attached to the vibrating unit. 1. A dynamic balance testing device comprisinga bearing unit configured to form an air bearing that rotatably holds a rotating body being a specimen, a bearing housing; and', 'a thrust bearing member detachably fixed to the bearing housing,, 'wherein the bearing unit haswherein the thrust bearing member is a plate-like member having an opening for inserting an axis body and forms a thrust air bearing between the rotating body and the thrust bearing member.2. The dynamic balance testing device according to claim 1 ,wherein the thrust bearing member is formed in a flat plate shape.3. The dynamic balance testing device according to claim 1 ,wherein the bearing unit has a positioning fixing member configured to position the thrust bearing member and detachably fix the thrust bearing member to the bearing housing.4. The dynamic balance testing device according to claim 3 , a positioning member configured to position the thrust bearing member; and', 'a fixing member configured to detachably fix the positioning member to the bearing housing., 'wherein the positioning fixing member ...

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Номер записи: 35
26-01-2017 дата публикации

MEASURING UNIT AND MEASURING ASSEMBLY FOR MEASURING UNBALANCE FORCES

Номер: US20170023431A1
Автор: GUCCIARDINO Lillo, RIBECCO Emilio, SOTGIU Paolo
Принадлежит:

The present invention relates to measuring unit for measuring forces generated by unbalance of rotor mounted on measuring shaft, particularly of vehicle wheel mounted on measuring shaft of wheel balancing machine, the measuring unit comprising stationary frame, first bearing for receiving measuring shaft rotatably about its shaft axis (Z), second bearing pivotally supporting first bearing about pivot axis (Y) which intersects shaft axis (Z) and being supported on stationary frame, first force sensor for measuring forces generated by unbalance of rotating rotor and acting on measuring shaft about pivot axis (Y), and second force sensor for measuring forces generated by unbalance of rotating rotor and acting on measuring shaft and on second bearing in direction intersecting shaft axis (Z), wherein second bearing and stationary frame are integrally formed of single element as support plate. 2. The measuring unit according to claim 1 , wherein a detection axis of the second force sensor is arranged substantially perpendicular to both the pivot axis (Y) and the shaft axis (Z).3. The measuring unit according to claim 1 , wherein a detection axis of the first force sensor is arranged substantially parallel to the shaft axis (Z).4. The measuring unit according to claim 1 , comprising at least one first spring claim 1 , preferably at least one torsion spring claim 1 , for pivotally supporting the first bearing within the second bearing about the pivot axis (Y).5. The measuring unit according to claim 4 , wherein the support plate comprises the at least one first spring as an integral part thereof.6. The measuring unit according to claim 1 , comprising at least one second spring claim 1 , preferably at least one plate spring claim 1 , for supporting the second bearing within the stationary frame.7. The measuring unit according to claim 6 , wherein the at least one second spring is configured such that the second bearing is translational moveable with respect to the stationary ...

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Номер записи: 36
26-01-2017 дата публикации

DEVICE FOR ALIGNING A WORKPIECE IN A MASS-CENTRING DEVICE

Номер: US20170023432A1
Автор: BREITWIESER Matthias
Принадлежит: SCHENCK ROTEC GMBH

Disclosed is a device for aligning a workpiece in a mass-centring device, in which in an initial position an upper flange () and a lower flange () are arranged concentrically around an axis () of a balancing spindle of the mass-centring device, with the upper flange () comprising an interface () for clamping means to clamp the workpiece, and the lower flange () an interface () for fastening means to fasten the device to the balancing spindle. At least two spring elements () reside between the upper and the lower flange (), such that in the initial position the upper flange () takes support axially and radially exclusively on the two spring elements (). In the initial position, the upper flange () is movable relative to the lower flange () into an eccentric position by a force acting in opposition to the spring elements (). A displacement device comprising a compression spring () and a piston () is arranged between the upper and the lower flange () such that in a clamping position the piston () is movable, by the force of the compression spring (), into engagement with a supporting element () of a fastening element () of the upper flange (), so that the piston () enables the upper flange () to be clamped against the lower flange () and to be arrested in the eccentric position. 1123142522231212223122223913121312. A device for aligning a workpiece in a mass-centring device , with an upper and a lower flange ( , ) arranged in an initial position concentrically around an axis () of a balancing spindle of the mass-centring device , with the upper flange () comprising an interface () for clamping means to clamp the workpiece , and the lower flange () an interface () for fastening means to fasten the device to the balancing spindle , wherein at least two spring elements ( , ) reside between the upper and the lower flange ( , ) , such that in the initial position the upper flange () takes support axially and radially exclusively on the two spring elements ( , ) and that in ...

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Номер записи: 37
24-04-2014 дата публикации

TIRE TESTING DEVICE

Номер: US20140109662A1
Автор: Koide Masafumi
Принадлежит: BRIDGESTONE CORPORATION

An object of the present invention is to provide an inside drum-type tire testing device, which can significantly improve operability and test precision, reliably has strength high enough to eliminate any concern about strength thereof, and has relatively small size and significantly small floor-occupied area. Specifically, the present invention provides a tire testing device, comprising: an inside drum-type cylindrical rotating drum a fixed support member for surrounding the rotating drum from the outer peripheral side of the drum via rotation guide means and a linear motor provided between the rotating drum and the fixed support member for rotationally driving the rotating drum 1. A tire testing device , comprising:an inside drum-type cylindrical rotating drum having a pseudo-road surface provided on an inner peripheral surface thereof;a fixed support member for surrounding the rotating drum from the outer peripheral side of the drum via rotation guide means; anda linear motor provided between the rotating drum and the fixed support member, for rotationally driving the rotating drum.2. The tire testing device of claim 1 , wherein the pseudo-road surface provided on the inner peripheral surface of the rotating drum is formed by plural segments having predetermined lengths in the circumferential direction of the rotating drum.3. The tire testing device of claim 1 , further comprising:water supply means for spraying water on the pseudo-road surface; andwater retrieval means for recycling used water.4. The tire testing device of claim 1 , wherein an inner surface of the pseudo-road surface provided on the inner peripheral surface of the rotating drum has tapered faces at respective end portions claim 1 , in the axial direction of the rotating drum claim 1 , thereof such that thicknesses of the tapered faces decrease toward respective outer edges in the drum axial direction of the inner surface.5. The tire testing device of claim 1 , wherein drainage grooves are formed ...

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Номер записи: 38
23-01-2020 дата публикации

ROTATING BODY LOAD MEASURING DEVICE

Номер: US20200025651A1
Автор: Agawa Jiro, TACHIBANA Makoto, TSUMURA Takumi, UEDA Tatsuya
Принадлежит:

A rotating body load measuring device according to the present invention includes: a first support section which supports one end portion of a shaft body, which protrudes from one end face of a rotating body, so as to be immovable in a first direction and a second direction along a central axis; a second support section which supports the other end portion of the shaft body, which protrudes from the other end face of the rotating body, so as to be immovable in the first direction and movable in the second direction; and a measuring part capable of measuring a force acting in the first direction on at least one of the first support section and the second support section from the shaft body and capable of measuring a force acting in the second direction on the first support section from the shaft body. 1. A rotating body load measuring device for detecting a force acting on a rotating body that is formed in a columnar shape and rotates around a central axis of a shaft body protruding from a center of each of both end faces , in a state where a main load is applied to the rotating body in a first direction that is one direction in a radial direction , the rotating body load measuring device comprising:a first support section which supports one end portion of the shaft body, which protrudes from one end face of the rotating body, so as to be immovable in the first direction and a second direction along the central axis;a second support section which supports the other end portion of the shaft body, which protrudes from the other end face of the rotating body, so as to be immovable in the first direction and movable in the second direction; anda measuring part capable of measuring a force acting in the first direction on at least one of the first support section and the second support section from the shaft body and capable of measuring a force acting in the second direction on the first support section from the shaft body.2. The rotating body load measuring device ...

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Номер записи: 39
24-01-2019 дата публикации

DEVICE AND METHOD OF COMBINING MEASUREMENT SIGNALS FROM ILLUMINATION SIGNALS

Номер: US20190026877A1
Автор: Doge Jens, Hoppe Christoph, Priwitzer Holger
Принадлежит:

A device includes illuminator configured to emit first and second illumination signal having first and second illumination intensities, respectively, in the direction of a surface region of an object to be measured, the second illumination intensity being smaller than the first illumination intensity. The device includes sensor configured to provide a first and second measurement signals based on first and second reflections of the first and second illumination signals on the surface region, respectively. The device includes evaluator configured to combine the first and second measurement signals with each other so as to obtain a combination result from which a position of the first illumination signal on the surface region may be derived, wherein an influence of a reflectance of the surface region within the combination result is reduced as compared to the influence on the first and second measurement signals. 1. Device comprising:an illuminator configured to emit a first illumination signal comprising a first illumination intensity and a second illumination signal comprising a second illumination intensity in the direction of a surface region of an object to be measured, the second illumination intensity being smaller than the first illumination intensity;a sensor configured to provide a first measurement signal based on a first reflection of the first illumination signal on the surface region, and to provide a second measurement signal based on a second reflection of the second illumination signal on the surface region;an evaluator configured to combine the first measurement signal and the second measurement signal with each other so as to achieve a combination result from which a position of the first illumination signal on the surface region may be derived, wherein an influence of a reflectance of the surface region within the combination result is reduced as compared to the influence on the first and second measurement signals;wherein the evaluator is ...

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Номер записи: 40
04-02-2016 дата публикации

SYSTEM AND METHOD FOR DETERMINING TIRE WEAR

Номер: US20160033367A1
Автор: Lindskog Peter, SVANTESSON Thomas, Svensson Anders, Unterreiner Michael
Принадлежит:

System for determining tire wear for tires of a wheeled motor vehicle including a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires; an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from the roll radius of the respective tire; a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; and a processing unit for determining the tire wear for such tires of the motor vehicle for which the indirect tire pressure determination unit provides the respective roll radius factor, namely by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit. 1. A system for determining tire wear for tires of a wheeled motor vehicle , comprising:a direct tire pressure determination unit being configured to measure at least the tire pressure of the tires;an indirect tire pressure determination unit being configured to determine for at least some of the tires a roll radius factor corresponding to or depending from a roll radius of the respective tire;a tire force determination unit being configured to determine a vertical force factor corresponding to or depending from a vertical force applied to the tires; by compensating the roll radius factor of the tires provided by the indirect tire pressure determination unit on basis of the tire pressures of the respective tires provided by direct tire pressure determination unit and on the basis of the vertical force factor of the respective tires provided by the tire force determination unit thereby providing a compensated roll radius factor for the respective tire, and', 'by comparing the compensated roll radius factor for the respective tire with a reference roll radius factor in such a way that the difference between the compensated ...

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Номер записи: 41
05-02-2015 дата публикации

TIRE TESTING APPARATUS

Номер: US20150033840A1
Автор: Jenniges Randal Lee, Litz Bradley Charles
Принадлежит:

A tire testing machine includes a tire and wheel assembly having a sensor configured to measure a parameter related to the tire and wheel assembly as it rotates on a rotating element. A holder supports the tire and wheel assembly. A processor is configured to receive an input at least based on the output signal from the sensor, and provide an output signal indicative of a parameter of a contact patch between a tire of the tire and wheel assembly and the rotating element. Controlled element(s) are configured to vary a parameter related to the contact patch and/or friction. 1. A tire testing machine comprising:a rotating element;a tire and wheel assembly having a sensor configured to measure a parameter related to the tire and wheel assembly as it rotates on the rotating element and providing an output signal indicative thereof;a holder supporting the tire and wheel assembly for rotation against a surface of the rotating element;a processor configured to receive an input at least based on the output signal from the sensor, the processor configured to provide an output signal indicative of a parameter of a contact patch between a tire of the tire and wheel assembly and the rotating element; anda controlled element configured to vary a parameter related to the contact patch.2. The tire testing machine of wherein the controlled element is a positioner of the holder configured to adjust a position of the tire and wheel assembly relative to the rotating element.3. The tire testing machine of wherein the controlled element comprises a valve configured to adjust a pressure of gas in the tire and wheel assembly.4. The tire testing machine of claim 1 , and further comprising a material supply system to affect contact of the tire against the rotating element claim 1 , the material supply system adjusting delivery of material based on an output signal from the processor.5. The tire testing machine of claim 1 , wherein the parameter comprises a length of the contact patch.6. The ...

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Номер записи: 42
31-01-2019 дата публикации

DEVICE FOR MEASURING AND ADJUSTING INERTIA OF TEST MODEL OF OFFSHORE STRUCTURE AND METHOD FOR USING THE SAME

Номер: US20190033157A1
Автор: Jiang Xiaoning, Lin Yan
Принадлежит:

A device including a measuring instrument, supporting mechanisms, a swinging mechanism, and a rotating mechanism. The measuring instrument includes an angle sensor and a pressure sensor. The supporting mechanisms are symmetrically disposed at two ends of the swing mechanism. The supporting mechanisms each include a support frame, a base frame, a bracket, and a bracket support. The support frame is disposed on the base frame. The bracket support is disposed on the support frame. The bracket is slidably disposed on the bracket support via locating pins. The swinging mechanism includes a first swing frame, a second swing frame, and a rotary table base disposed between the first swing frame and the second swing frame. The rotating mechanism includes a rotary table. The rotary table is wheel-shaped and includes a rotating shaft and a plurality of radial supporting rods. 2. The device of claim 1 , wherein the support frame and the base frame employ hollow square tubes.3. The device of claim 1 , wherein four locating pins are disposed between the bracket and the bracket support.4. The device of claim 1 , wherein an included angle between two adjacent radial supporting rods is 30 degrees.5. A method of using the device of claim 1 , the method comprising:1) measuring transverse and longitudinal lengths of the test model, and determining a length of the swinging mechanism according to the longitudinal length of the test model; centering the rotary table base on the swing mechanism; connecting and fixing the first swing frame, the second swing frame, and the rotary table base using the fastening bolt according to the length of the swinging mechanism; disposing the angle sensor on the first swing frame; installing the pressure sensor between the bracket and the bracket support; connecting the angle sensor and the pressure sensor to a signal acquisition unit; disposing and fixing the rotating mechanism on the rotary table base; hoisting the swinging mechanism and the rotating ...

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Номер записи: 43
31-01-2019 дата публикации

ALUMINUM ALLOY HUB POSITIONING FIXTURE

Номер: US20190033159A1
Автор: Jiang Ling, JIN Hongfu, Li Zhipeng, Lv Jinqi, SUN Hanbao, Wang Zhuxing, Zhu Yingwei, Zhu Zhihua
Принадлежит: CITIC Dicastal CO., LTD

The invention provides an aluminum alloy hub positioning fixture. The aluminum alloy hub positioning fixture adopts an upper trapezoidal metal taper sleeve and a lower trapezoidal metal taper sleeve, the lower trapezoidal metal taper sleeve is in contact with the central hole of a hub, and the upper trapezoidal metal taper sleeve is in contact with the cap section of the hub; the lower trapezoidal metal taper sleeve is mounted on a hollow shaft, and a metal pipe is arranged in the middle of the hollow shaft. During working, the hub is positioned and mounted on the lower trapezoidal metal taper sleeve via the central hole, the upper trapezoidal metal taper sleeve is in vertical contact with the cap section of the hub under the action of a cylinder. 1. An aluminum alloy hub positioning fixture , comprising a vacuum extraction system , a vacuum gauge , electromagnetic valves , a compressed air system , a pressure gauge , a metal hose , a belt pulley , a metal pipe , an upper rotating shaft , an upper cylinder , a lower cylinder , a servo , a bearing seat , a belt , a lower rotating shaft , rubber sheaths , a trapezoidal taper sleeve A , a trapezoidal taper sleeve B and a bearing seat.2. The aluminum alloy hub positioning fixture of claim 1 , the rubber sheaths are mounted on the surfaces of both the trapezoidal taper sleeve A and the trapezoidal taper sleeve B.3. The aluminum alloy hub positioning fixture of claim 1 , the trapezoidal taper sleeve A and the trapezoidal taper sleeve B are in a metal step shape with each layer having a taper claim 1 , and are configured to be applied to hubs having different central hole sizes.4. The aluminum alloy hub positioning fixture of claim 1 , when the vacuum extraction system extracts vacuum claim 1 , the vacuum degree is 3-5 Pa.5. The aluminum alloy hub positioning fixture of claim 1 , when the compressed air system charges air claim 1 , the air charging pressure is 0.3-0.6 MPa.6. The aluminum alloy hub positioning fixture of ...

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Номер записи: 44
24-02-2022 дата публикации

SPLIT-TYPE SWING ANGLE ADJUSTABLE AEROSTATIC BEARING DEVICE FOR ROTOR STATIC BALANCE, AND AIR FLOTATION SUPPORT DEVICE FOR STATIC BALANCE OF ROTATING RING-SHAPED PARTS

Номер: US20220056954A1
Автор: LIU ZHANSHENG, SUN YUANLI, YU SHUBO, Zhang Guanghui
Принадлежит:

The present disclosure provides a split-type swing angle adjustable aerostatic bearing device for rotor static balance and an air flotation support device for static balance of rotating ring-shaped parts, the split-type swing angle adjustable aerostatic bearing device for rotor static balance and an air flotation support device for static balance of rotating ring-shaped parts belong to a field of static balance detection, and aims to solve a problem of low measurement precision of rotor and realize static balance of rotating ring-shaped parts. A gas mold, having a certain bearing capacity, is formed between an outer surface of the air flotation support cover under the bearing base and a concave surface of the upper base, so that the bearing base is floated to realize an automatic centering of the rotor static balancing device. 1. A split-type swing angle adjustable aerostatic bearing device for rotor static balance , comprising:a shaft base;an upper support base;a lower support base;a bottom base;an air inlet channel; andan axial positioning device;wherein a first semi-cylindrical surface is formed on the shaft base, the first semi-cylindrical surface is concave inwards and faces upwards, a plurality of air holes are disposed on the first semi-cylindrical surface; the shaft base is fixed on the upper support base, a sealed air cavity is disposed between the shaft base and the upper support base, the plurality of the air holes is communicated with the sealed air cavity, the sealed air cavity is connected with an external air supply device through the air inlet channel; the upper support base and the lower support base are hinged to drive an axis of the first semi-cylindrical surface to swing by a certain angle in a vertical direction, the lower support base and the bottom base are connected together;the axial positioning device comprises a baffle plate, two guide rods, and an axial limiting shaft;the two guide rods are slidably disposed on the shaft base, the baffle ...

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Номер записи: 45
24-02-2022 дата публикации

MEASURING DEVICE AND MEASURING METHOD FOR MEASURING UNBALANCED MOMENT OF BOTTOM SURFACE OF CIRCULAR VALVE CORE

Номер: US20220057276A1
Автор: HOU Congwei, JIN Zhijiang, MU Juan, QIAN Jinyuan
Принадлежит:

Provided are a device and a measuring method for measuring an unbalanced moment on a bottom surface of a circular valve core. The device includes a diverging shaped tube, a water tank, a transparent tube, spring dynamometers, laser sources, a circular valve core, and a high-speed camera with a camera stand. Inner shackles and the laser sources are evenly distributed on an outer side of the circular valve core of the device, the spring dynamometers are connected with the inner shackles and with the outer shackles evenly distributed on an inner wall of the transparent tube. The method records an unbalanced state of the circular valve core under an impact of water flow from different orientations with the high-speed camera on the camera stand, the location of the laser point on the outer wall and a tension force of the spring dynamometer are read to calculate a torque of the circular valve core. 1. A measuring device for measuring an unbalanced moment of a bottom surface of a circular valve core , comprising:{'b': '6', '#text': 'a diverging shaped tube ();'}{'b': '10', '#text': 'a water tank ();'}{'b': '1', '#text': 'a transparent tube ();'}{'b': '2', '#text': 'spring dynamometers ();'}{'b': '11', '#text': 'laser sources ();'}{'b': '4', '#text': 'a circular valve core (); and'}{'b': '8', '#text': 'a high-speed camera (),'}{'b': ['4', '1', '1', '9', '4', '11', '4', '9', '11', '9', '4', '11', '4', '11', '3', '9', '1', '9', '3', '9', '3', '2'], '#text': 'wherein the circular valve core () is placed in the vertical transparent tube (), positioning scales are marked on and along an outer wall of the transparent tube (); a plurality of inner shackles () is evenly distributed at the same height of a side wall of the circular valve core () at equal angles along a circumferential direction, and each of the laser sources () are fixed on the side wall of the circular valve core () directly above a corresponding one of the inner shackles (); the laser sources () directly above the ...

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Номер записи: 46
16-02-2017 дата публикации

SYSTEM AND METHOD FOR DETECTING VEHICLE ANOMALIES DURING GROUND TRAVEL

Номер: US20170045409A1
Автор: Casey Sean M., Cousins Clifford G.
Принадлежит:

A system for detecting vehicle load anomalies during ground travel includes at least one inertial sensor sensing a pitch or a roll of a vehicle and outputting at least one of a pitch or a roll value; a computing device having a processor and a memory and an input coupled to an input and monitoring module, where said input and monitoring module receives one of the pitch or roll values output by the at least one inertial sensor, and said computing system further having a measuring module measuring an oscillation based on one of the output pitch or roll values and calculating an adjusted center of gravity value based on a comparison between an expected oscillation and the measured oscillation; said computing device having an output to an alert module that outputs an alert signal through said output if the adjusted center of gravity is outside of a predetermined threshold. 1. A system for detecting vehicle load anomalies during ground travel comprising:{'b': 330', '110', '112', '100', '530', '531, 'at least one inertial sensor () sensing at least one of a pitch () or a roll () of a vehicle () during ground travel and outputting at least one of a pitch () or a roll () value;'}{'b': 310', '537', '533', '535', '532', '534, 'a computing device () having a processor () and a memory () and an input () coupled to an input and monitoring module () being processed by said processor, where said input and monitoring module being processed by said processor receives one of the pitch or roll values output by the at least one inertial sensor, and said computing system further having a measuring module () measuring an oscillation based on one of the output pitch or roll values and calculating an adjusted center of gravity value based on a comparison between an expected oscillation and the measured oscillation; and'}{'b': 548', '562', '538, 'said computing device having an output coupled to an alert module () being processed by said processor, where said alert module receives the ...

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Номер записи: 47
18-02-2021 дата публикации

METHOD AND SYSTEM FOR MAINTAINING CENTER OF GRAVITY OF STORAGE UNITS

Номер: US20210049539A1
Автор: AGRAWAL Priya, DEVVRAT Kumar, PALAPARTHI Venakata Sri Harsha, PATRA Jyotirmaya
Принадлежит: GREY ORANGE PTE. LTD.

A method for maintaining center of gravity (COG) of a storage unit is provided. A server receives a first request for placing an item in a storage facility. The server identifies a storage unit in the storage facility and slots available in the storage unit for placing the item. The server selects a first slot from the available slots to place the item, such that when the item is placed in the first slot, the COG of the storage unit is maintained within a COG tolerance region of the storage unit. The server further maintains the COG within the COG tolerance region after one or more items are picked from the storage unit. The server identifies new slots for rearranging items remaining in the storage unit after the items are picked and thus maintains the COG of the storage unit within the COG tolerance region. 1. A method for maintaining a center of gravity (COG) of a first storage unit , the method comprising:receiving, by a server, a first request for placing at least one item in a storage facility that includes a plurality of storage units;identifying, by the server, the first storage unit from the plurality of storage units for placing the item;identifying, by the server, a set of slots available in the first storage unit for placing the item;selecting, by the server, a first slot of the set of slots to place the item such that when the item is placed in the first slot, the COG of the first storage unit is maintained within a COG tolerance region of the first storage unit; andcommunicating, by the server to an instruction device associated with an operator, a placement instruction to place the item in the first slot, wherein the item is placed in the first slot by the operator based on the placement instruction.2. The method of claim 1 , further comprising:determining, by the server, the COG tolerance region of the first storage unit based on at least one of a size of the first storage unit, a first set of dimensions of the first storage unit, a weight of the ...

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Номер записи: 48
15-02-2018 дата публикации

Tire tester

Номер: US20180045610A1
Автор: Hidenari Ota, Michinari OKABE, Naoyuki Neagari
Принадлежит: IHI Corp, IHI Logistics and Machinery Corp

A tire tester includes a rotary member, a tire support mechanism, and an actuator configured to advance and retreat at least one of the rotary member and the tire support mechanism with respect to the other. The tire support mechanism includes a main frame connected with the actuator, a subframe supporting an axle extending in a second direction orthogonal to a first direction in which the rotary member or the tire support mechanism advances and retreats with the actuator, and movably attached to the main frame such that a distance of the subframe from the main frame decreases and increases in a direction crossing the first direction; and at least one measurement unit provided between the main frame and the subframe.

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Номер записи: 49
08-05-2014 дата публикации

METHOD AND DEVICE FOR DETERMINING THE STATIC UNBALANCE

Номер: US20140123753A1
Автор: BREITWIESER Matthias, FRESE Stephan, HARTNAGEL Matthias, WANKE Thomas
Принадлежит: SCHENCK ROTEC GMBH

Disclosed is a method for determining the static unbalance of a body () provided with a locating surface () by means of a center-of-gravity weighing scale (), the method including measuring the position of the locating surface () of the body () with respect to its mount by means of electric displacement sensors (), computing from the measurement signals of the displacement sensors () the eccentricity of the locating surface () of the body () with respect to the reference point of the scale () by means of an electric evaluating circuit, weighing the body () and recording mass and position of the center of gravity of the body () with respect to the reference point of the scale (), and computing the unbalance of the body () from the measurement signals of the scale () and the eccentricity of the locating surface () of the body () with respect to the reference point of the scale () by means of the evaluating circuit. 1. A method for determining the static unbalance of a body provided with a locating surface by means of a weighing scale configured to determine the center of gravity of the body and including a mount capable of receiving the body with a vertically aligned axis of rotation , and locating means guiding the body on its seating engagement with the mount to an essentially centered position with respect to a reference point of the scale , comprising the steps:placing the body on the mount of the weighing scale,measuring the position of the locating surface of the body with respect to the mount by means of at least two electric displacement sensors spaced from each other at a defined angular distance,calculating the eccentricity of the locating surface of the body with respect to the reference point of the scale from the measurement signals of the displacement sensors by means of an electric evaluating circuit connected to the displacement sensors,weighing the body and recording mass and position of the center of gravity of the body with respect to the reference ...

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Номер записи: 50
03-03-2022 дата публикации

VENDING DEVICE WITH INTEGRATED INVENTORY MONITORING

Номер: US20220067644A1
Автор: Drissner Joerg
Принадлежит:

A vending device has at least one display area and an evaluator. The display area is formed by a rigid body, and has at least two, spatially-separated product areas, the rigid body of the display area being held by force transmission areas of at least two weighing cells. The evaluator is configured to, at periodic intervals or when a total weight detected by the at least two weighing cells changes: determine new coordinates of a center of gravity from data of the weighing cells, and transmit the new coordinates to a controller. The controller is configured to: determine a product area within the display area based upon changes in the coordinates of the center of gravity, determine, from the change in a total weight, the weight of goods removed from or added to the determined product area, and update an inventory, stored in a memory, for the product.

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Номер записи: 51
25-02-2016 дата публикации

ALL-IN-ONE INTEGRATED SENSING DEVICE FOR MACHINE CONTROL

Номер: US20160054114A1
Автор: Crozier Scott Tasman, Nau Kevin Ray
Принадлежит:

An integrated sensing device with a suite of sensors assists construction machine operators in finding the correct level to dig a ditch/trench. The sensing device includes a gravity sensor to determine angles, a laser distance meter (LDM), and a laser receiver for detecting a known jobsite elevation. The sensing device is mounted to the dipper stick of an excavator; the gravity sensor detects the angle of the stick, and the laser receiver detects a laser plane of light that represents a known jobsite elevation. The LDM is aimed at another member of the machine that moves in a predetermined path as the bucket is rotated, to and the distance between the LDM and the target member is used to calculate the vertical elevation of the working tool edge. A display graphically shows the operator the proper dig depth and the present position of the working tool edge. 1. An integrated sensing device that is mounted to a construction machine which has a first member that exhibits movement through a pathway that is variable with respect to gravity , and has a second member that includes a working tool edge , wherein said second member has a known physical moving relationship to said first member through a predetermined range of motions , said integrated sensing device comprising:(a) a laser receiver having at least one photosensor, said laser receiver detecting a position of incoming laser light that reaches said at least one photosensor;(b) an electronic angle sensor;(c) an electronic distance sensor, having an output that is directed at a predetermined target, and which determines a distance to said target without making physical contact with said target; and(d) a processing circuit and a memory circuit; (i) said integrated sensing device is mounted to said first member of the construction machine;', '(ii) said electronic distance sensor determines a distance between said output and said predetermined target;', '(iii) said predetermined target comprises a surface portion of ...

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Номер записи: 52
13-02-2020 дата публикации

TIRE TESTING MACHINE, METHOD FOR TESTING A TIRE AND COMPUTER PROGRAM

Номер: US20200049593A1
Автор: ALLEVA Lorenzo, BÖSL Roland, EISENBEISS Jens, Kramer Markus
Принадлежит:

Testing the rolling resistance of a tire is a common procedure in tire testing. The tire testing machine () comprises a rolling device (), a tire mounting device () and a driving assembly (). The driving assembly () rotates the rolling device () and/or the tire mounting device (). The rolling device () has a drum () with an outer peripheral surface (), while the tire () is rotatable mountable on the tire mounting device (). The tire mounting device () is arranged such that the tire () engages with the outer peripheral surface () of the drum (). A first torque measuring assembly () measures a torque of the drum () and a second torque measuring assembly () measures a torque of the tire (). An angular velocity measuring assembly () measures and/or calculates the angular velocity of the tire w, and the angular velocity of the drum (ω). 11. A tire testing machine () , comprising:{'b': '4', 'a rolling device (),'}{'b': '3', 'a tire mounting device (), and'}{'b': '2', 'a driving assembly (),'}{'b': 2', '4', '3, 'the driving assembly () being operated to rotate the rolling device () and/or the tire mounting device () according to a configurable driving cycle,'}{'b': 4', '5', '7, 'whereby the rolling device () has a drum () with an outer peripheral surface (),'}{'b': 14', '3, 'the tire () being rotatably mountable on the tire mounting device (),'}{'b': 3', '14', '7', '5, 'the tire mounting device () being arranged such that the tire () engages with the outer peripheral surface () of the drum (),'}{'b': 12', '18', '12, 'with a first torque measuring assembly (), a second torque measuring assembly (), and an angular velocity measuring assembly (),'}{'b': 12', '5', '18', '14, 'whereby the first torque measuring assembly () being operable to measure a drum drive torque of the drum () and the second torque measuring assembly () being operable to measure a tire drive torque of the tire (),'}{'b': '12', 'sub': T', 'D, 'whereby the angular velocity measuring assembly () being ...

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Номер записи: 53
23-02-2017 дата публикации

SYSTEM AND METHOD FOR DYNAMIC BALANCING OF A ROTATING BODY

Номер: US20170052085A1
Автор: Clark Robert A., Hoover Linn C., VanKouwenberg David A., Williams James E.
Принадлежит:

A system dynamically balances a rotating body. The system includes a support that holds the body as it rotates. At least one sensor generates signals indicative of a balance of the body as it rotates and a controller identifies a position on the body where material can be placed to balance the body. The controller operates at least one actuator to move a plurality of ejectors opposite the identified position where the controller operates at least one ejector in the plurality of ejectors to eject material onto the identified position. The system can operate iteratively until the body is balanced within a predetermined range. 1. A system for dynamically balancing a body comprising:an actuator operatively connected to the body, the actuator being configured to rotate the body;at least one sensor configured to generate signals indicative of a balance of the body as the actuator rotates the body;a plurality of ejectors configured to eject drops of at least one material;at least one further actuator operatively connected to the plurality of ejectors, the at least one further actuator being configured to move the plurality of ejectors to a plurality of positions opposite the rotating body; anda controller operatively connected to the actuator, the sensor, the plurality of ejectors, and the at least one further actuator, the controller being configured to operate the actuator to rotate the body, to identify with reference to the signals from the sensor a position on the body where material ejected onto the body balances the body, to operate the at least one further actuator to move at least one ejector in the plurality of ejectors to the identified position, and to send signals to the at least one ejector to eject material onto the identified position on the body to balance the body.2. The system of claim 1 , the at least one further actuator being further configured to:move the plurality of ejectors along the longitudinal axis of the body as the actuator rotates the body.3 ...

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Номер записи: 54
05-03-2015 дата публикации

Systems and Methods for Detecting an Imbalanced Load in a Washing Machine Appliance Having a Balancing Apparatus

Номер: US20150059416A1
Автор: II Richard Dean, Naber Christopher Nils, Suel
Принадлежит: GENERAL ELECTRIC COMPANY

An exemplary washing machine appliance includes a cabinet, a tub positioned within the cabinet, a drum rotatably mounted within the tub, a balancing apparatus configured to offset an imbalance created by articles in the drum, and a motor in mechanical communication with the drum. The motor is configured for selectively rotating the drum within the tub. The washing machine appliance includes a controller configured to perform operations. The operations include receiving a signal indicative of a speed of the motor. The operations include determining a deviation of the speed of the motor from a target motor speed and comparing the deviation to one or more threshold values. The operations include determining whether to perform a rebalancing process or a spin out process based on the comparison of the deviation to the one or more threshold values. 1. A washing machine appliance , comprising:a cabinet;a tub positioned within the cabinet;a drum rotatably mounted within the tub, the drum defining a wash chamber for receipt of articles for washing;a balancing apparatus configured to offset an imbalance created by the articles in the drum;a motor in mechanical communication with the drum, the motor configured for selectively rotating the drum within the tub; and receiving a signal indicative of a speed of the motor;', 'determining a deviation of the speed of the motor from a target motor speed;', 'comparing the deviation to one or more threshold values; and', 'determining whether to perform a rebalancing process or a spin out process based on the comparison of the deviation to the one or more threshold values., 'a controller configured to perform operations, the operations comprising2. The washing machine appliance of claim 1 , wherein the controller is configured to perform further operations comprising:operating the motor to reach the target motor speed; andafter the target motor speed is reached, controlling the motor to operating at a constant power;wherein the step of ...

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Номер записи: 55
05-03-2015 дата публикации

Sensor arrangement

Номер: US20150059454A1
Автор: Lehmann Thomas, Theuss Horst, Vaupel Mathias
Принадлежит: INFINEON TECHNOLOGIES AG

A sensor arrangement for sensing an environmental property of an environment of the sensor arrangement, the sensor arrangement comprising: 1. A sensor arrangement for sensing an environmental property of an environment of the sensor arrangement , the sensor arrangement comprising:a carrier;an active sensor component arranged at the carrier and configured for providing a sensor signal being indicative of the environmental property;a molding structure encapsulating at least a part of an exterior surface of the carrier and comprising an access recess exposing the active sensor component with regard to the environment;wherein the access recess is arranged asymmetrically with regard to the carrier.2. The sensor arrangement according to claim 1 , wherein a center of gravity of the access recess is displaced with regard to a center of gravity of the carrier in a lateral direction.3. The sensor arrangement according to claim 1 , wherein a center of gravity of the active sensor component is displaced with regard to a center of gravity of the carrier in a lateral direction.4. The sensor arrangement according to claim 1 , comprising at least one electric connection structure configured for electrically contacting the carrier and being arranged exclusively at a side of the active sensor component which faces a center of gravity of the carrier claim 1 , whereas another side of the active sensor component which is averted with regard to the center of gravity of the carrier is free of electric connection structures.5. The sensor arrangement according to claim 1 , comprising at least one wire bond configured for electrically contacting the carrier and being arranged exclusively at a lateral side of the active sensor component which faces a center of gravity of the carrier claim 1 , whereas another lateral side of the active sensor component which is averted with regard to the center of gravity of the carrier is free of wire bonds.6. The sensor arrangement according to claim 5 , ...

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Номер записи: 56
10-03-2022 дата публикации

METHOD FOR MONITORING A LOAD CARRIER VEHICLE, MONITORING DEVICE FOR A LOAD CARRIER VEHICLE, LOAD CARRIER VEHICLE, LOAD CARRIER VEHICLE SYSTEM AND SWAP BODY

Номер: US20220074785A1
Автор: Bautista Jonas, Forti Andrew, Greer John, Hendriks Sietse, Kamphuis Dennis, Sienkiewicz Frank, Via Matthew, Zwijze Robert
Принадлежит:

The technology provides a method for monitoring a load carrier vehicle (), comprising measuring at least one sensor value indicating a force and determining a mass based on the at least one sensor value. Furthermore, monitoring devices (156) used in the method and load carrier vehicles () are described. 1. Method for monitoring a load carrier vehicle , comprising measuring at least one sensor value indicating a force and determining a mass based on the at least one sensor value.2. Method according to claim 1 , further comprising the step of determining n partial weights (Fpto Fp; Fpto Fp; Fpto Fp) based on the at least one sensor value indicating a force claim 1 , wherein the load carrier vehicle has n weight transfer portions each weight transfer portion having an effective weight transfer position (Rtto Rt) claim 1 , wherein each partial weight (Fpto Fp; Fpto Fp; Fpto Fp) is associated with a respective one of the n weight transfer portions claim 1 , and wherein a weight (Fwl) of the load of the load carrier vehicle is transferred by means of the weight transfer portions to a surface bearing the load carrier vehicle.3. Method according to claim 1 , further comprising determining a weight (Fwl) of the load of the load carrier vehicle based on the n partial weights (Fpto Fp; Fpto Fp).4. Method according to claim 2 ,wherein determining the mass using the at least one sensor value comprises determining the mass based on the sum of the weight (Fwl) of the load of the load carrier vehicle and a weight (Fwc) of the load carrier vehicle;wherein optionally determining a weight (Fwc) of the load carrier vehicle is based on parameters of the load carrier vehicle.5. Method according to claim 2 , further comprising{'sub': 1', 'n', '1', 'n', '1,empty', 'n, empty', '1, loaded', 'n, loaded', '1', 'n, 'determining n partial torques (Mpto Mp), each resulting from a respective partial weight (Fpto Fp; Fpto Fp; Fpto Fp) acting on an associated effective weight transfer position (Rtto ...

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Номер записи: 57
01-03-2018 дата публикации

SYSTEM AND METHOD FOR GENERATION OF A TACHOMETER SIGNAL AND REDUCTION OF JITTER

Номер: US20180059135A1
Автор: Bechhoefer Eric Robert
Принадлежит: Green Power Monitoring Systems, LLC

A system and method for generating a tachometer signal from a vibration sensor is disclosed in which an approximately idealized band pass filter is used along with a fast Fourier transform (FFT) to create a sufficient analytic signal to derive the tachometer signal for a shaft or other rotating component. In addition, jitter in the generated tachometer signal, or any tachometer signal, can be reduced by using an approximately idealized low pass filter and then transforming the filtered signal using a real FFT. These processes can be performed using a smart vibration sensor, which facilitates improved vibration analysis on rotating equipment where in the past the addition of a tachometer would be prohibitive due to cost, weight, certification requirements, or physical impracticality. 1. A method of generating a tachometer signal with reduced jitter comprising the steps of:receiving vibration data from a vibration sensor that monitors a rotating component;applying a band pass filter to the vibration data;using a fast Fourier transform to filter the vibration data;producing a tachometer signal from the transformed, filtered vibration data;applying a low band pass filter to the tachometer signal;fast Fourier transforming the filtered tachometer signal; andreconstructing a reconstructed tachometer signal with reduced jitter from the transformed, filtered tachometer signal.2. The method of wherein the step of producing a tachometer signal includes taking a pseudo integral.3. The method of wherein the step of producing a tachometer signal includes taking an inverse fast Fourier transform.4. The method of further including a step of normalizing tachometer zero crossing times by a sample rate of the vibration data.5. The method of further including a step of identifying variations on the tachometer signal unrelated to jitter.6. A system of generating a tachometer signal comprising:a vibration sensor that produces a vibration signal representative of a spectral content of ...

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Номер записи: 58
02-03-2017 дата публикации

DEVICE AND METHOD FOR DETERMINING INERTIA PROPERTIES OF AN OBJECT

Номер: US20170059439A1
Автор: Klöpper Robert
Принадлежит:

The present application relates to devices for determining inertia properties of an object, said devices comprising a support and a measuring platform which are arranged relative to each other in such a way that movements between two and five degrees of freedom are possible. 1. A device for determining inertia characteristics of an object , the device comprising:a carrier,a measurement platform arranged above the carrier and for the arrangement of the object, anda plurality of restoring elements are arranged between the measurement platform and the carrier,wherein the measurement platform is movable with respect to the carrier in up to five degrees of freedom and a bearing arrangement is arranged between the carrier and the measurement platform in a manner that permits a movement of the measurement platform with respect to the carrier in at least two degrees of freedom, andwherein the measurement platform is connected to the carrier via the restoring elements and independently of the restoring elements via the bearing arrangement and joint arrangement.2. The device according to claim 1 , wherein the bearing arrangement and/or joint arrangement is arranged in a manner that accommodates a static load of an object which is to be arranged on the measurement platform and is to be measured.3. The device according to claim 1 , wherein the plurality of restoring elements are spring elements.4. The device according to claim 1 , wherein the measurement platform is fixed with respect to the carrier in a vertical translatory direction of movement.5. The device according to claim 1 , wherein the plurality of restoring elements is larger than or equal to a number of degrees of freedom claim 1 , in which the measurement platform is freely movable.6. The device according to claim 1 , wherein the plurality of restoring elements comprises a first and a second group of restoring elements claim 1 , wherein the first group of restoring elements is arranged in a manner such that these ...

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Номер записи: 59
02-03-2017 дата публикации

METHOD AND SYSTEM FOR THE OPTICAL DETERMINATION OF CORRECTION PLANES IN ROTATING ELEMENTS

Номер: US20170059440A1
Автор: ROGUSKI Wieslaw Albin, ROGUSKI Wojciech Wieslaw, TWOREK Jan
Принадлежит:

The subject matter of the present invention relates to a system for the optical determination of correction planes in rotating elements, used in the process of balancing, in particular in diagnostic devices equipped with a system which has at least one video camera (K), at least one line projector (RL), a monitor screen (M) and a computer (P) which controls individual component elements of the system, wherein the video camera (K) cooperates with the line projector (RL) while projecting a view of the rotating element (EW) on the monitor screen (M) together with an image of a line (L) projected by means of the line projector (RL). 1. A method for the optical determination of correction planes in a rotating element (EW) used in the process of balancing , in particular in diagnostic devices equipped with a system that has at least one video camera (K) , at least one line projector (RL) , a monitor screen (M) and a computer (P) by means of which these component elements of the system are controlled , the method consisting in that a rotating element (EW) is placed on the shaft of a diagnostic device (PM) in such a manner that the rotating element (EW) is perpendicular to the axis of the shaft of a diagnostic device (PM) , characterized in that , prior to placing the rotating element (EW) on the shaft of the diagnostic device (PM) , an area of measurement space is determined in such a manner that pre-determined pixels Pof the monitor screen (M) having coordinates xand yare assigned to a set of points in the area of measurement space , which pixels are then assigned pre-determined values of radiuses rfrom the axis of the shaft of the diagnostic device (PM) and values of the distance Dof line (L) projected each time by the line projector (RL) on a virtual rotating element (EW′) from the diagnostic device (PM) , and in such determined area of measurement space the rotating element (EW) is placed on the shaft of the diagnostic device (PM) onto which a line (L) is projected by ...

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Номер записи: 60
04-03-2021 дата публикации

HORIZONTAL INSTRUMENT, A SUPPORTING DEVICE AND A METHOD FOR ADJUSTING THE BEARING SURFACE OF THE SUPPORTING DEVICE TO BE HORIZONTAL

Номер: US20210063266A1
Автор: WANG Chuhan, WANG Yinghao
Принадлежит:

The present invention provides a horizontal instrument, a supporting device and a method for adjusting the bearing surface of the supporting device to be horizontal. The horizontal instrument in the present invention is used for maintaining a bearing surface parallel to a horizontal plane, wherein the horizontal instrument comprises a slide-swing assembly, and a monitoring assembly, when the monitoring assembly detects that the bearing surface is not parallel to the horizontal plane, the controller instructs the driving unit to drive the slider to slide, which leads the lower end of the swinging rod to slide, and then drives the swinging rod to swing, thereby, the upper end of the swinging rod drives the bearing surface to rotate for an angle so that the bearing surface is maintained parallel to the horizontal plane. 1. A horizontal instrument , for maintaining a bearing surface parallel to a horizontal plane , wherein the horizontal instrument comprises:a slide-swing assembly, and a monitoring assembly,wherein the slide-swing assembly includes a swinging rod, at least one slider, at least one driving unit, and a pivot member,the swinging rod and the pivot member are so structured that an upper end of the swinging rod is connected to a carrier seat through the pivot member, wherein the carrier seat has a top surface as a bearing surface,the swinging rod has a lower end, wherein the lower end of the swinging rod is swingably mounted on a slider's surface,the monitoring assembly includes a controller and an angle sensor, wherein the sensor is so configured as to be able to monitor whether the bearing surface is parallel to a horizontal plane,wherein said monitoring assembly further includes a distance/height sensor,wherein said horizontal instrument further comprises a lifting assembly, which is so configured as to take the bearing surface to move up and down,the controller is so configured thatwhen the monitoring assembly detects that the bearing surface is not ...

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Номер записи: 61
04-03-2021 дата публикации

APPARATUS FOR MEASURING IMBALANCE FORCES OF A TIRE/HUB ASSEMBLY OF A VEHICLE DURING MOTION OF THE VEHICLE

Номер: US20210063267A1
Автор: ALSTON Robert P., CANFIELD Eric L., COTTINGHAM Joseph H., EPUR Rohan, FANTI Brandon T., FENIMORE David, Foster Rachel, GUJRAL Meer, KANE Zoe, LARUE Ryan M., LIAO William, REILAND Ethan, SAINI Amish, SCRIBNER David M., SOMA Scott J., SUDINI Anish, SUN Aron, YECHURI Saahas S.
Принадлежит:

An apparatus configured to be removably attached to a tire/hub assembly of a vehicle via lug nuts of the tire/hub assembly is used to determine imbalance forces of the tire/hub assembly during motion of the vehicle. The apparatus includes a disk and a plurality of cup-shaped objects fixed at one end to the disk and extending perpendicularly outward from the disk. The plurality of cup-shaped objects are arranged a fixed radial distance from a radial center of the disk in a pattern that matches the lug nuts of the tire/hub assembly. The apparatus is mounted to the vehicle's tire/hub assembly by fitting the plurality of cup-shaped objects over the lug nuts of the tire/hub assembly. The apparatus further includes one or more inertial measurement units (IMU's) mounted to the disk to measure parameters that are used for calculating the imbalance forces during motion of the vehicle. 18-. (canceled)9. An apparatus configured to be removably attached to a tire/hub assembly of a vehicle via lug nuts of the tire/hub assembly for use in determining imbalance forces of the tire/hub assembly during motion of the vehicle , the apparatus comprising:(a) a disk;(b) a plurality of cup-shaped objects, each cup-shaped object being rigidly fixed at one end to the disk and extending perpendicularly outward from the disk, the plurality of cup-shaped objects being arranged a fixed radial distance from a radial center of the disk in a pattern that matches the lug nuts of the tire/hub assembly, each cup-shaped object being hollow along at least a portion of its length that is distal from the disk, the hollow portion having a diameter that is larger than a diameter of the lug nuts of the tire/hub assembly so as to allow the apparatus to be mounted to the vehicle's tire/hub assembly by fitting the plurality of cup-shaped objects over the lug nuts of the tire/hub assembly; and 'wherein one or more of the cup-shaped objects includes a magnet fixedly mounted at an end of the cup-shaped objects ...

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Номер записи: 62
04-03-2021 дата публикации

TIRE UNIFORMITY TESTING SYSTEM

Номер: US20210063283A1
Автор: Femec Alex Anton, Krieger Rich, Matuszny Richard, Ryder John C.
Принадлежит:

A tire uniformity testing machine that includes a base, a pair of vertical spaced apart columns supporting an upper cross frame member. The base carries a load wheel carriage movable towards and away from a testing station. The vertical uprights establish a peripheral footprint plane that does not extend beyond a plane that is tangent to an outer rolling surface of the load wheel when it is redirected. The upper frame member includes clearance spaces and cutouts that enable at least a portion of an upper chuck to move into the upper frame member and a super structure mounted to a top of the cross member that mounts at least a portion of an actuator for translating the upper chuck. The configuration establishes a machine height that enables the machine to be loaded into a standard shipping container and reduces the overall footprint of the tire uniformity machine without compromising its ability to precisely sense tire uniformity parameters. 1. A tire uniformity testing machine , comprising:a) a base;b) an upper cross frame member spaced above said base;c) a pair of spaced apart vertical columns extending upwardly from another end of said base;d) said base defining a tire testing position at which a tire to be tested is rotatably mounted;e) an upper chuck assembly movable towards and away from said tire testing position, said upper cross frame member including clearance openings which enable at least a portion of said upper chuck assembly to be received within said upper cross frame member when said upper chuck assembly is retracted;f) a super structure secured to the top of said upper cross frame member at least partially supporting an actuator for moving said upper chuck assembly towards and away from said tire testing position.2. The tire uniformity testing machine of wherein said base claim 1 , vertical support and upper cross frame member are configured such that a height of said machine measured from a bottom of said base and a top surface of said upper cross ...

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Номер записи: 63
05-06-2014 дата публикации

METHOD AND SYSTEM FOR INTEGRATING GAS TURBINE TRIM BALANCING SYSTEM INTO ELECTRONIC ENGINE CONTROLS

Номер: US20140150550A1
Автор: BORWANKAR Paraag, Grant Heather, Macchia Enzo, MCELVAINE Christopher
Принадлежит: PRATT & WHITNEY CANADA CORP.

Methods and systems for determining a rebalancing strategy for trim balancing one or more rotational components of a gas turbine. One or more noise, acoustics or vibrational signals may be received at a control device of an aircraft comprising the gas turbine engine while the aircraft is in operation. The one or more noise, acoustics or vibrational signals may be used for determining a rebalancing strategy for one or more unbalanced rotational components. 1. A method for determining a rebalancing strategy for trim balancing one or more rotational components of a gas turbine , the method comprising:receiving one or more noise, acoustics or vibrational signals at a control device of an aircraft comprising the gas turbine engine while the aircraft is in operation; andusing the one or more noise, acoustics or vibrational signals and one or more processors of the control device, determining a rebalancing strategy for one or more unbalanced rotational components.2. The method of claim 1 , wherein the control device is an electronic engine device.3. The method of claim 1 , the method further comprising determining whether at least one of the one or more rotational components is unbalanced and determining the rebalancing strategy only if at least one of the one or more rotational components is unbalanced.4. The method of claim 3 , wherein determining whether at least one of the one or more rotational components is unbalanced comprises determining whether at least one of the one or more noise claim 3 , acoustics or vibrational signals exceeds a preset noise claim 3 , acoustics or vibration threshold.5. The method of claim 1 , wherein the rebalancing strategy comprises a determination of how one or more weights attached to the one or more rotational components can be at least one of moved claim 1 , added and removed claim 1 , in order to rebalance the one or more rotational components.6. The method of claim 1 , wherein the rebalancing strategy comprises a determination of how ...

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Номер записи: 64
24-03-2022 дата публикации

METHOD FOR DETERMINING A WEIGHT AND A CENTER OF GRAVITY OF A ROBOT MANIPULATOR LOAD

Номер: US20220088804A1
Автор: Spenninger Andreas, Streitel Fangyi
Принадлежит:

A method of determining a weight and a center of gravity of a load for a robot manipulator, the method including: gripping the load using an end effector; moving the load into a number n of distinct static poses; determining an external wrench wrench Ffor each of the n static poses; determining, in a base coordinate system, at least components of each external wrench Fthat indicate the external forces; determining a particular estimation of the weight of the load from a particular component pointing in a direction of a gravity vector from among the components of each external wrench Fthat indicate the external forces in the base coordinate system, and from a magnitude of the gravity vector; determining the weight of the load by averaging respective estimations of the weight of the load; determining estimations of coordinates of the center of gravity of the load for each of the n static poses based on the weight of the load or the particular estimation of the weight of the load determined for a particular static pose and based on the components of the external wrench Fthat indicate externally acting torques; and determining the center of gravity of the load by averaging respective estimations of coordinates of the center of gravity. 1. A method of determining a weight and a center of gravity of a load for a robot manipulator , wherein the robot manipulator is arranged on a base and has a plurality of links , and the links are connected to one another by joints and movable or rotatable relative to one another by actuators on the joints , and wherein the robot manipulator has an end effector for gripping the load , the method comprising the steps of:gripping the load by the end effector;moving the load into a number n of distinct static poses;{'sub': ext', 'ext, 'determining an external wrench Ffor each of the n static poses, wherein a respective external wrench Findicates external forces and torques acting on the robot manipulator;'}{'sub': 'ext', 'determining, in a ...

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Номер записи: 65
05-03-2020 дата публикации

ROBOT HAND

Номер: US20200070353A1
Автор: MATSUMOTO Ryou
Принадлежит: FANUC Corporation

Provided is a robot hand including: gripping portions disposed with spacings between each other in a circumferential direction about an axis, and that grip a workpiece; driving portions, each of which is provided so as to correspond to one of the gripping portions, cause the corresponding gripping portions to be linearly moved in closing directions in which the gripping portions are brought close to the axis and opening directions in which the gripping portions are moved away from the axis; and a center-of-gravity detecting unit detects a center-of-gravity position of the workpiece being gripped by the gripping portions. Each of the driving portions adjust, based on the center-of-gravity position of the workpiece, the position of the corresponding gripping portion in a direction in which the center-of-gravity position is brought closer to the axis. 1. A robot hand comprising:a plurality of gripping portions that are disposed, with spacings between each other, in a circumferential direction about a predetermined axis, and that grip a workpiece;a plurality of driving portions, each of which is provided so as to correspond to one of the plurality of gripping portions, that cause the corresponding gripping portions to be linearly moved in closing directions in which the gripping portions are brought close to the predetermined axis and opening directions in which the gripping portions are moved away from the predetermined axis;a center-of-gravity detecting unit that detects a center-of-gravity position of the workpiece being gripped by the plurality of gripping portions; andwherein each of the plurality of driving portions adjusts, on the basis of the center-of-gravity position of the workpiece detected by the center-of-gravity detecting unit, the position of the corresponding gripping portion in a direction in which the center-of-gravity position is brought closer to the predetermined axis.2. The robot hand according to claim 1 , wherein each of the plurality of driving ...

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Номер записи: 66
05-03-2020 дата публикации

DEVICE AND METHOD FOR MOVING AN OBJECT

Номер: US20200072695A1
Автор: Perrier Philippe
Принадлежит: PHILOPTERE

A device for moving an object comprises a base and a platform able to receive the object; six supports each having an upper end connected to the platform and a lower end connected to the base and an actuation device connected to at least three of the supports. The upper end and lower end of each support in combination have at least five degrees of freedom. The actuation device is suited for giving predefined periodic movements to said, at least three of the six supports, these three supports being called controlled supports, thus giving a periodic movement to the platform relative to the base with at least three degrees of freedom. 1. A device for moving an object , the device comprising:a base and a platform able to receive the object;six supports each having an upper end connected to the platform and a lower end connected to the base, where the upper end and lower end of each support in combination have at least five degrees of freedom; andan actuation device connected to at least three of the supports, where the actuation device is suited for giving predefined periodic movements to said at least three of the six supports, these three supports being called controlled supports, thus giving a periodic movement to the platform relative to the base with at least three degrees of freedom.2. The device according to claim 1 , wherein said periodic movement is composed of at least three elementary periodic movements each defining a degree of freedom of the movement of the platform claim 1 , where each of said three periodic elementary movements has a period claim 1 , called elementary period claim 1 , different from each other claim 1 , where the elementary periods are submultiples of the period of the periodic movement of the platform claim 1 , and the movements of the platform along each other periodic elementary movements are algebraically independent from each other.3. The device according to claim 2 , wherein the ratio between the period of the platform and the ...

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Номер записи: 67
24-03-2016 дата публикации

APPARATUS AND METHOD FOR DYNAMICALLY BALANCING ROTORS

Номер: US20160084727A1
Автор: Carlson Bartly, Perelman Gershon
Принадлежит:

A rotor is statically or dynamically balanced by driving the rotor to rotate at a desired speed, measuring an imbalance in the rotor, calculating an adjustment to be made in a mass distribution of the rotor based on the measured imbalance, and adjusting the mass distribution to reduce the imbalance. Mass adjustment is done by operating a laser to ablate material from the rotor according to operating parameters based on the adjustment calculated. The foregoing is done while the rotor is rotating. 1. A method for balancing a rotor , the method comprising:rotating the rotor about an axis;measuring an imbalance in the rotor;calculating an adjustment to be made to a mass distribution of the rotor based on the measured imbalance; andadjusting the mass distribution to reduce the imbalance, by operating a laser to ablate material from the rotor according to operating parameters based on the adjustment calculated,wherein the measuring, calculating, and adjusting are performed while the rotor is rotating.2. The method of claim 1 , wherein the measuring claim 1 , calculating claim 1 , and adjusting are performed while the rotor is installed in a machine comprising a shaft and a plurality of bearings supporting the shaft for rotation about the axis claim 1 , and wherein the rotor is attached to and rotates with the shaft.3. The method of claim 2 , wherein the machine has a configuration selected from the group consisting of a pump claim 2 , a turbine claim 2 , a propeller claim 2 , an impeller claim 2 , a gear claim 2 , a drum claim 2 , a flywheel claim 2 , and an engine.4. The method of claim 2 , comprising transporting a rotor balancing apparatus to the machine claim 2 , and operating the rotor balancing apparatus to perform the steps of measuring claim 2 , calculating claim 2 , and adjusting.5. The method of claim 1 , comprising repeating the steps of measuring claim 1 , calculating claim 1 , and adjusting one or more times to further reduce the imbalance.6. The method of ...

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Номер записи: 68
24-03-2016 дата публикации

Tire traveling test device

Номер: US20160084738A1
Автор: Toru Okada
Принадлежит: Kobe Steel Ltd

A tire traveling test device has a belt that horizontally spans between two drums and a load support device that supports a flat surface of the belt from a lower surface side of the belt. The load support device is provided with a liquid supply means that supplies support liquid between the load support device and the belt and supports the belt from below. The liquid supply means is provided with a plurality of supply holes from which support liquid can be discharged between the load support device and the belt. Additionally, the liquid supply means can adjust the flow rate of the support liquid discharged from the supply holes on the basis of the fluid pressure, which changes according to the tire contact state.

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Номер записи: 69
02-04-2015 дата публикации

METHOD AND DEVICE FOR CHECKING TIRE PRESSURE

Номер: US20150090022A1
Автор: Nobis Guenter, Uffenkamp Volker
Принадлежит:

A method for monitoring the pressure in a tire of a rolling vehicle includes determining the length of the tire contact patch of the tire in the driving direction and inferring the pressure in the tire from the length of the tire contact patch. 110-. (canceled)11. A method for checking a pressure in a tire of a rolling vehicle , the method comprising:determining a length of a tire contact patch of the tire in a driving direction; andinferring the pressure in the tire from the length of the tire contact patch.12. The method of claim 11 , wherein the method includes determining whether the pressure in the tire is within a predefined range.13. The method of claim 11 , wherein the length of the tire contact patch is determined from at least one time difference between the crossing over at least two sensors which are situated in series in the driving direction.14. The method of claim 13 , wherein the time differences include the time difference between a first contact and a last contact of the tire contact patch with the first sensor.15. The method of claim 13 , wherein the time differences include the time difference between the first contact of the tire contact patch with the first sensor and the first contact of the tire contact patch with the second sensor and/or the time difference between the last contact of the tire contact patch with the first sensor and the last contact of the tire contact patch with the second sensor.16. The method of claim 11 , further comprising:comparing the lengths of the tire contact patches of at least two tires to one another.17. The method of claim 16 , further comprising:determining a profile depth of the tire and taking into consideration the length of the tire contact patch for the computation.18. A device for checking a pressure in a tire of a vehicle which is rolling over a roadway plane claim 16 , comprising:at least two sensors which are spaced apart from one another in the rolling direction of the tire and which are suitable to ...

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Номер записи: 70
02-04-2015 дата публикации

Weight Material Dispensing, Cutting and Applying System

Номер: US20150090032A1
Автор: Belknap Benjamin D., CLAXTON Scott R., COMPTON Mark A., FUNCHEON John K., GABEL Mark R., HEDTKE, JR. Louis R., KING Matthew W., MCDOLE David L.
Принадлежит:

An apparatus for balancing a wheel includes a tool and an arm control module. The tool is mechanically coupled to an arm and includes a leading edge, a trailing edge, and a face surface that forms an arc between the leading and trailing edges. The arm control module actuates the arm to position the leading edge of the tool a predetermined distance from an edge of a deck of a cutting apparatus to receive a piece of non-segmented wheel weight material. A blade of a cutting apparatus passes between the edge of the deck and the leading edge of the tool to cut the piece from the non-segmented wheel weight material. 1a tool that is mechanically coupled to an arm and that includes a leading edge, a trailing edge, and a face surface that forms an arc between the leading and trailing edges; andan arm control module that actuates the arm to position the leading edge of the tool a predetermined distance from an edge of a deck of a cutting apparatus to receive a piece of non-segmented wheel weight material,wherein a blade of the cutting apparatus passes between the edge of the deck and the leading edge of the tool to cut the piece from the non-segmented wheel weight material.. An apparatus for balancing a wheel, the apparatus comprising: This application is a continuation of U.S. patent application Ser. No. 13/175,413, filed on Jul. 2, 2011, which is a continuation-in-part of U.S. patent application Ser. No. 12/683,495 (now U.S. Pat. No. 8,505,423), filed on Jan. 7, 2010, which claims priority to U.S. Provisional Application No. 61/143,284, filed on Jan. 8, 2009. This application claims the benefit of U.S. Provisional Application No. 61/428,534, filed on Dec. 30, 2010. The entire disclosures of the above applications are incorporated by reference herein.The present disclosure relates to weight material and more particularly to weight material dispensing and cutting systems and methods of operating such systems.The background description provided herein is for the purpose of ...

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Номер записи: 71
19-06-2014 дата публикации

Extendable moment weight tools

Номер: US20140166373A1
Автор: Jacob Andrew Salm, John David Ward, Jr.
Принадлежит: General Electric Co

Extendable moment weight tools include an extendable base adapted to extend between at least a first distance and a second distance, wherein the extendable base supports a pair of weight scales at the first distance and the second distance, and, a first platform having an upper side provided with a pair of transverse component-supporting posts, and a lower side provided with a pair of transverse foot rails adapted to engage the respective pair of weight scales.

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Номер записи: 72
25-03-2021 дата публикации

RIM CHANGE DEVICE, TIRE TEST DEVICE, AND RIM REPLACEMENT METHOD

Номер: US20210088415A1
Автор: Agawa Jiro, TACHIBANA Makoto, UEDA Tatsuya
Принадлежит:

A first carrying arm () and a second carrying arm () provided in a first post () and a third carrying arm () and a fourth carrying arm () provided in a second post () are provided, the first carrying arm () is turned in a direction following the third carrying arm () from a side opposite to a side on which the third carrying arm () collecting an upper rim turns to carry another upper rim to an upper spindle, and the second carrying arm () is turned in a direction following the fourth carrying arm () from a side opposite to a side on which the fourth carrying arm () collecting a lower rim turns to carry another lower rim to a lower spindle. 1. A rim change device comprising:a tire holding mechanism which includes an upper spindle supporting an upper rim from above and a lower spindle disposed below the upper spindle and rotatable supporting a lower rim, and holds a tire between the upper rim and the lower rim;a rim storage in which a plurality of different types of upper rims and a plurality of different types of lower rims are stored; anda rim carrying mechanism which is disposed between the tire holding mechanism and the rim storage,wherein the rim carrying mechanism includesa first post which extends in an up-down direction,a first carrying arm which is provided in the first post in a state of being movable in the up-down direction, is configured to turn about the first post, is configured to carry the upper rim selected from the rim storage to the upper spindle, and mounts the upper rim on the upper spindle,a second carrying arm which is provided in the first post in a state of being movable in the up-down direction, is configured to turn about the first post, is configured to carry the lower rim selected from the rim storage to the lower spindle, and mounts the lower rim on the lower spindle,a second post which extends in the up-down direction and is provided at a position adjacent to the first post,a third carrying arm which is provided in the second post in a ...

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Номер записи: 73
21-03-2019 дата публикации

DEVICE AND METHOD FOR EVALUATING ROLLING RESISTANCE OF TIRE

Номер: US20190086292A1
Автор: Okada Toru
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Rolling resistance is appropriately and easily evaluated at an arbitrary temperature of a tire. When a phase difference between a load applied to the tire and a variation in position of the drum is derived for a reference tire, the phase differences δ are derived at a plurality of temperatures within a range from an initial temperature to an atmospheric temperature in a process in which a temperature of the reference tire that reached the initial temperature higher or lower than the atmospheric temperature by heating or cooling approaches the atmospheric temperature from the initial temperature. The phase difference corresponding to a temperature of a tire to be evaluated among the phase differences δ derived for the reference tire at the plurality of temperatures and the phase difference derived for the tire to be evaluated are compared, thereby evaluating rolling resistance of the tire to be evaluated. 1. A device for evaluating rolling resistance of a tire comprising:a pressurizing member having a surface that simulates a road surface on which the tire is rolled;a moving mechanism for alternately moving the pressurizing member in an approaching direction that is a direction moving toward the tire and in a separating direction that is a direction moving away from the tire;a load sensor configured for detecting a load applied to the tire in a state where the surface of the pressurizing member contacts with the tire;a position sensor for detecting positions of the pressurizing member in directions that are the approaching direction and the separating direction;a phase difference derivation unit for controlling the moving mechanism such that the load applied to the tire is changed, and deriving a phase difference between a variation in the load and a variation in the position of the pressurizing member based on signals from the load sensor and the position sensor; anda rolling resistance evaluation unit for comparing the phase difference derived for a reference tire ...

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Номер записи: 74
30-03-2017 дата публикации

STABILITY WARNING AND CONTROL INTERVENTION SYSTEM FOR A FORESTRY VEHICLE

Номер: US20170089797A1
Автор: LAWLER RICHARD J., Neumann Bryon P.
Принадлежит:

A stability warning system for a tree feller-buncher includes a first inertial measurement unit configured to measure an orientation of an undercarriage of the tree feller-buncher carrying at least one track, a second inertial measurement unit configured to measure an orientation of a boom coupled to the turntable, and a felling head operably connected to the boom. A controller is operable to estimate a center of gravity of the tree feller-buncher based on the measured orientation of the undercarriage and the measured orientation of the boom. 1. A stability warning system for a tree feller-buncher comprising:a first inertial measurement unit configured to measure an orientation of an undercarriage of the tree feller-buncher carrying at least one track;a second inertial measurement unit configured to measure an orientation of a boom coupled to the turntable;a felling head operably connected to the boom; anda controller operable to estimate a center of gravity of the tree feller-buncher based on the measured orientation of the undercarriage and the measured orientation of the boom.2. The stability warning system of claim 1 , further comprising a third inertial measurement unit configured to measure an orientation of a turntable rotatably coupled to the undercarriage claim 1 , the controller further operable to estimate the center of gravity of the tree feller-buncher based on the measured orientation of the undercarriage claim 1 , the measured orientation of the boom claim 1 , and the measured orientation of the turntable.3. The stability warning system of claim 1 , the boom further comprising a main boom pivotably connected to the turntable claim 1 , a stick boom operably connected to the main boom claim 1 , and a wrist adapter operably connected to the stick boom claim 1 , wherein the second inertial measurement unit is configured to measure the orientation of the main boom.4. The stability warning system of claim 3 , further comprising:a fourth inertial measurement ...

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Номер записи: 75
09-04-2015 дата публикации

SYSTEMS AND METHODS FOR DETERMINING ROTARY BLADE TRACK AND BALANCE ADJUSTMENTS

Номер: US20150096370A1
Автор: Georgescu Ramona A., Hiatt Daniel, Lin Yiqing
Принадлежит:

A method of adjusting a rotary blade includes receiving performance data for a rotary blade, receiving an adjustment constraint for the rotary blade, defining an adjustment space for alternative adjustment solutions for the rotary blade including a plurality of alternative adjustment solutions, and calculating expected performance for one of the plurality of alternative adjustment solutions. Based on the expected performance of the one of the plurality of alternative adjustment solutions, the method determines whether to calculate expected performance for another of the plurality of alternative adjustment solutions. 1. A method for determining an adjustment for a rotary blade , comprising:receiving performance data for a rotary blade;establishing at least one threshold for the rotary blade;defining an adjustment solution search tree;selecting a first adjustment solution from the search tree for evaluation;evaluating the first adjustment solution using the threshold; anddetermining whether to evaluate a second adjustment solution from the search tree based on the evaluation of the first adjustment solution.2. A method as recited in claim 1 , wherein the threshold includes a number of adjustments associated with an adjustment solution for the rotary blade.3. A method as recited in claim 1 , wherein the threshold includes an expected performance associated with an adjustment solution for the rotary blade.4. A method as recited in claim 1 , further including receiving mode selection input.5. A method as recited in claim 4 , wherein the mode selection is selected from a group including meets limits and best ride.6. A method as recited in claim 1 , wherein defining the adjustment solution search tree includes defining a root node.7. A method as recited in claim 6 , wherein defining the adjustment search tree includes defining a leaf level with adjustment on and off nodes branched to the root node.8. A method as recited in claim 7 , wherein defining the adjustment search ...

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Номер записи: 76
12-05-2022 дата публикации

VEHICLE CENTER OF GRAVITY HEIGHT DETECTION AND VEHICLE MASS DETECTION USING LIGHT DETECTION AND RANGING POINT CLOUD DATA

Номер: US20220144289A1
Автор: LI Dalong, Rezaeian Ayyoub
Принадлежит:

Vehicle center of gravity (CoG) height and mass estimation techniques utilize a light detection and ranging (LIDAR) sensor configured to emit light pulses and capture reflected light pulses that collectively form LIDAR point cloud data and a controller configured to estimate the CoG height and the mass of the vehicle during a steady-state operating condition of the vehicle by processing the LIDAR point cloud data to identify a ground plane, identifying a height difference between (i) a nominal distance from the LIDAR sensor to the ground plane and (ii) an estimated distance from the LIDAR sensor to the ground plane using the processed LIDAR point cloud data, estimating the vehicle CoG height as a difference between (i) a nominal vehicle CoG height and the height difference, and estimating the vehicle mass based on one of (i) vehicle CoG metrics and (ii) dampening metrics of a suspension of the vehicle. 1. A center of gravity (CoG) height and mass estimation system for a vehicle , the system comprising:a light detection and ranging (LIDAR) sensor configured to emit light pulses and capture reflected light pulses that collectively form LIDAR point cloud data; and processing the LIDAR point cloud data to identify a ground plane;', 'identifying a height difference between (i) a nominal distance from the LIDAR sensor to the ground plane and (ii) an estimated distance from the LIDAR sensor to the ground plane using the processed LIDAR point cloud data;', 'estimating the vehicle CoG height as a difference between (i) a nominal vehicle CoG height and the height difference; and', 'estimating the vehicle mass based on one of (i) vehicle CoG metrics and (ii) dampening metrics of a suspension of the vehicle., 'a controller configured to estimate the CoG height and the mass of the vehicle during a steady-state operating condition of the vehicle by2. The system of claim 1 , wherein the vehicle further comprises an autonomous driving system comprising a model configured to utilize ...

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Номер записи: 77
28-03-2019 дата публикации

SYSTEM FOR MONITORING VEHICLE WHEEL ASSEMBLY PARAMETERS

Номер: US20190092106A1
Автор: Abdossalami Amin, Moore Joseph K.
Принадлежит:

A system for monitoring parameters of a vehicle wheel assembly includes a wheel speed sensor configured to produce a wheel speed signal, and a wheel assembly monitoring module operatively connected to the wheel speed sensor. The wheel assembly monitoring module determines a dynamic response of the wheel speed signal at one or more wheel speeds. A wheel assembly health module provides one of a visual output, an audible output, and a haptic output indicating that the wheel assembly has exceeded a selected wheel assembly parameter threshold based on the dynamic response of the wheel speed signal. 1. A system for monitoring parameters of a wheel assembly for a vehicle comprising:a wheel speed sensor configured to produce a wheel speed signal;a wheel assembly monitoring module operatively connected to the wheel speed sensor, the wheel assembly monitoring module determining a dynamic response of the wheel speed signal at one or more wheel speeds; anda wheel assembly health module providing one of a visual output, an audible output, and a haptic output indicating that the wheel assembly has exceeded one of a selected wheel assembly geometric non-uniformity parameter threshold and a selected wheel assembly imbalance parameter threshold based on the dynamic response of the wheel speed signal.2. The system according to claim 1 , further comprising an inertial measurement unit (IMU) configured to produce an inertial signal indicating an inertia of the vehicle.3. The system according to claim 2 , wherein the wheel assembly monitoring module is operatively connected to the IMU claim 2 , the wheel assembly monitoring module determining a dynamic response of the inertial signal.4. The system according to claim 3 , wherein the wheel assembly health module provides the one of the audible output claim 3 , the visual output claim 3 , and the haptic output indicating that the wheel assembly has exceeded the one of the one of a selected wheel assembly geometric non-uniformity parameter ...

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Номер записи: 78
23-04-2015 дата публикации

Balance opposition comparator

Номер: US20150107375A1
Автор: Ronald Frank Stanley
Принадлежит: Individual

Tennis players need multiple playing racquets available for their use, and the mass proportions of each one, needs to match all the others exactly, otherwise players will likely experience degradation in their swing mechanics when unmatched racquet's were used. BOC provides a simplified solution, through comparator testing, which provides a means for mass proportions matching, of 2 tennis racquets or similar swing-able massive implements. Whereby, a Reference massive object/racquet having a perfected swing mass is directly compared to a 2 nd massive object/racquet having an imperfect swing mass, that can then be adjusted to match the reference objects perfected swing mass, by placing small metal strips of mass by trial [per our plan] onto the frame/moment of 2 nd object. Then finally both tested racquets will become exactly the same perfected swing mass proportions.

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Номер записи: 79
12-04-2018 дата публикации

METHODS AND SYSTEMS FOR DETECTING UNBALANCED PAYLOAD CONDITION IN MACHINES

Номер: US20180100779A1
Автор: Bell Jason, Steinlage Justin Lee, Wulf Stefan Jacob
Принадлежит: CATERPILLAR INC.

A method for detecting an unbalanced payload condition in a machine is disclosed. The method includes detecting, by a first sensor, a pressure exerted on each of one or more struts in the machine by a payload. The method further includes detecting, by a second sensor, one or more operational parameters associated with machine. Furthermore, method includes determining, by a controller, a center of gravity of the payload based on detected pressure, the one or more operational parameters, and one or more dimensions of the machine. Additionally, the method includes determining, by the controller, a force being exerted, by the payload, on each traction member of the machine based on the center of gravity of the payload. The method further includes detecting, by the controller, the unbalanced payload condition when the force, being exerted on at least one traction member of the plurality of traction members, exceeds a threshold value. 1. A method for detecting an unbalanced payload condition in a machine , the method comprising:detecting, by a first sensor of the machine, a pressure exerted on each of one or more struts in the machine by a payload on the machine, wherein the one or more struts are configured to support the payload;detecting, by a second sensor of the machine, one or more operational parameters associated with the machine, wherein the one or more operational parameters comprise an orientation of the machine;determining, by a controller of the machine, a center of gravity of the payload based on the pressure on each of the one or more struts, the one or more operational parameters, and one or more dimensions of the machine;determining, by the controller, a force being exerted, by the payload, on each traction member of a plurality of traction members of the machine based on the center of gravity of the payload; anddetecting, by the controller, the unbalanced payload condition when the force, being exerted on at least one traction member of the plurality of ...

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Номер записи: 80
12-04-2018 дата публикации

METHOD AND APPARATUS FOR DIAGNOSING A FAULT CONDITION IN AN ELECTRIC MACHINE

Номер: US20180100895A1
Автор: GUPTA Amit K., NADARAJAN Sivakumar, VISWANATHAN Vaiyapuri
Принадлежит: ROLLS-ROYCE PLC

There is disclosed a method for diagnosing a fault condition in an electric machine . The method comprises measuring S at least one physical parameter generated during operation of the electric machine ; analysing S the or each measured parameter in a frequency domain; and determining S whether the electric machine has a stator or rotor winding fault based on a comparison of an amplitude of the or each analysed parameter at a first predetermined frequency and a first threshold amplitude for the first frequency. The at least one physical parameter comprises a sound generated by the electric machine 1. A method for diagnosing a fault condition in an electric machine , the method comprising:measuring at least one physical parameter generated during operation of the electric machine;analysing the or each measured parameter in a frequency domain; anddetermining whether the electric machine has a stator or rotor winding fault based on a comparison of an amplitude of the or each analysed parameter at a first predetermined frequency and a first threshold amplitude for the first frequency;wherein the at least one physical parameter comprises a sound generated by the electric machine; andfurther comprising determining the type of electric machine and/or the loading the electric machine is subjected to, wherein the or each predetermined frequency and its respective threshold amplitude is determined based on the type of electric machine and/or its loading.2. A method according to claim 1 , wherein the first threshold amplitude is an upper threshold amplitude claim 1 , and wherein the electric machine is determined to have a stator or rotor winding fault if the amplitude of the or each analysed parameter at the first frequency is above the upper threshold amplitude.3. A method according to claim 1 , further comprising determining whether the electric machine is unbalanced based on a comparison of an amplitude of the or each analysed parameter at a second predetermined frequency ...

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Номер записи: 81
19-04-2018 дата публикации

AUTOMATED WORK PIECE MOMENT OF INERTIA (MOI) IDENTIFICATION SYSTEM AND METHOD FOR SAME

Номер: US20180104825A1
Автор: Holyoak Vonn L., Moosman Bryan R., Vulcano Anthony R.
Принадлежит:

A method and system for identifying a moment of inertia (MOI) of a work piece includes coupling the work piece to a manipulator assembly such as a 6-axis robotic arm or 3-axis gimbal. The manipulator assembly includes a force/torque sensor and a motion feedback sensor. The manipulator assembly moves the work piece with three-dimensional motion. Force, torque and movement measurements are made as the work piece moves. The MOI is identified according to the force and torque measurements and rotational accelerations derived from the measured movement. The measurements may be used to identify the products of inertia (POI) and center of mass of the work piece. 1. A method for automatically identifying a moment of inertia (MOI) of a work piece comprising:coupling a work piece to a manipulator assembly, the manipulator assembly includes a force/torque sensor configured to measure force and torque transmitted from the work piece to the manipulator assembly and a motion feedback sensor configured to measure motion of the work piece;moving the work piece in a three-axis coordinate system with the manipulator assembly, said motion including at least rotation about each of the three axes;measuring with the force/torque sensor at least a first force and at least a first torque for each of the three axes as the work piece is moving;measuring with the motion sensor the movement of the work piece including at least a first rotation about each of the three axes; andidentifying the MOI in each of the three axes according to at least the measured first force and first torque and first rotation for each of the three axes.2. The method of claim 1 , wherein the manipulator assembly includes a robotic arm capable of 6-axis motion including three-axis translation and three-axis rotation.3. The method of claim 2 , wherein coupling the work piece to the manipulator assembly includes the robotic arm autonomously picking up the work piece.4. The method of claim 3 , wherein moving the work ...

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Номер записи: 82
19-04-2018 дата публикации

SEISMIC RESPONSE ASSESSMENT OF MAN-MADE STRUCTURES

Номер: US20180106696A1
Автор: MCCLURE Ghyslaine, MIRSHAFIEI Farshad
Принадлежит:

The present disclosure is drawn to methods and systems for determining a seismic response of a man-made structure to a given input earthquake. Sensors are used to obtain vibration data for data collection locations from one or more floors of the man-made structure, which may be ambient vibration data or vibration data resulting from forced vibration or shock testing. The vibration data is used to determine modal characteristics for the man-made structure, including mode shapes, natural frequencies, and damping ratios. The mass, centre-of-mass, and moment of inertia is also determined for the floors of the man-made structure. The modal characteristics are then translated from the data collection locations to the centre-of-mass based on the structure of the floors. Then, a seismic response of the man-made structure to an input earthquake is determined using the translated modal characteristics and the mass and moment of inertia of the floors. 1. A method , comprising:obtaining vibration data corresponding to data collection locations from sensors for at least one floor of a man-made structure;determining modal characteristics of the at least one floor based on the vibration data;determining a mass, a centre-of-mass location, and a moment of inertia of the at least one floor;translating the modal characteristics from the data collection locations to the centre-of-mass location based on a floor structure of the at least one floor; anddetermining a seismic response of the man-made structure to an input earthquake using the translated modal characteristics, the mass, and the moment of inertia of the at least one floor.2. The method of claim 1 , wherein determining the seismic response comprises evaluating equations of motion in at least three dimensions claim 1 , the equations of motion having 3N degrees of freedom claim 1 , where N is a number of stories of the man-made structure.3. The method of claim 1 , further comprising associating a level of destruction to the man- ...

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Номер записи: 83
30-04-2015 дата публикации

Pneumatic Wheel Clamping Apparatus for a Wheel Service Machine

Номер: US20150114110A1
Автор: Marler James, Story John, Weis Matthew
Принадлежит:

An apparatus for a wheel service machine includes a body having an axis and a aperture through the axis, the aperture shaped to receive a rotary shaft, a first chamber and a second chamber located in the body, a pneumatic inlet communicated with the second chamber, the pneumatic inlet configured to be couple to a pneumatic supply line. A piston is movably disposed in the first chamber between a retracted and an extended position, the piston moving from the retracted position to the extended position when pressure from the second chamber is supplied to the first chamber. A valve is positioned between the first and second chambers, the valve selectively communicating the first and second chambers. A wheel service apparatus includes a base, a motor configured to rotate a rotary shaft, and a pneumatic nut. A docking station for the pneumatic nut can be located on the base. 1. A pneumatic nut apparatus for use on a rotary shaft of a wheel service machine , the pneumatic nut apparatus comprising:a body having an axis and an aperture through the body along the axis, the aperture shaped to receive the rotary shaft;a first chamber located in the body;a second chamber located in the body;a pneumatic inlet communicated with the second chamber, the pneumatic inlet configured to couple to a pneumatic supply line; anda piston movably disposed in the first chamber between a retracted position and an extended position, the piston movable from the retracted position to the extended position when a pressure from the second chamber is supplied to the first chamber.2. The apparatus of claim 1 , further comprising a valve disposed on the body claim 1 , the valve movable between a first position and a second position claim 1 , the valve configured to substantially prevent fluid communication between the first and second chambers when the valve is in the first position and to allow fluid communication between the first and second chambers when the valve is in the second position.3. The ...

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Номер записи: 84
29-04-2021 дата публикации

System and method for detecting distribution of weight of payload in dump bodies

Номер: US20210123793A1
Автор: Alexander Eli DOWLING, Brodie Lee THOMPSON
Принадлежит: Caterpillar Underground Mining Pty Ltd

A system for detecting distribution of a weight of a payload in a dump body of a vehicle includes first sensors, second sensors, and a controller. The dump body is pivotable about pins to be selectively seated and titled to a frame of the vehicle. The first sensors are arranged between the dump body and the frame, and detect components of the weight of the payload exerted through the dump body when the dump body is seated relative to the frame. The second sensors are arranged correspondingly within the pins, and detect components of the weight of the payload exerted through the dump body. The controller determines a status of payload distribution in the dump body based on the component of the weight of the payload detected by the first sensors and second sensors, and generate a notification to indicate the status of payload distribution.

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Номер записи: 85
11-04-2019 дата публикации

RUBBER FOOTPRINT AND ROLLING RESISTANCE MEASUREMENT

Номер: US20190107464A1
Автор: Samadi Ali
Принадлежит:

A system for measuring rolling resistance of a substrate may include a transparent support member including a contact surface, a rolling member including a cylindrical convex surface with the substrate attached on the cylindrical convex surface, the cylindrical convex surface placed on the contact surface, an oscillation mechanism coupled with the rolling member configured to drive an oscillatory rotational movement of the rolling member about a longitudinal axis of the rolling member. The oscillation mechanism may include two parallel arms attached at their respective midpoints to either base ends of the rolling member on a pivot axis overlapping the longitudinal axis of the rolling member, the two parallel arms attached to one another at respective ends of the two parallel arms by two links, and two adjustable weights, each of the two adjustable weights mounted on a respective link of the two links. The exemplary system may further include a light source arranged at one side of the transparent body such that light emitted from the light source reflected within the transparent support member, and an image capturing device placed below the contact surface configured to capture images of contact patch of the substrate through the transparent support member. 1. A system for testing properties of a substrate , the system comprising:a transparent support member comprising a transparent contact surface;a rolling member comprising a cylindrical convex surface with the substrate attached on the cylindrical convex surface, the cylindrical convex surface configured to be in constant contact with the transparent contact surface; two parallel arms attached at their respective midpoints to either base ends of the rolling member on a pivot axis overlapping the longitudinal axis of the rolling member, the two parallel arms attached to one another at respective ends of the two parallel arms by two links; and', 'two adjustable weights, each of the two adjustable weights mounted on ...

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Номер записи: 86
28-04-2016 дата публикации

GRAVITY PENDULUM, ADAPTER AND HOLDER

Номер: US20160116362A1
Автор: Klöpper Robert
Принадлежит: Resonic GmbH

The invention relates to an adapter for a gravity pendulum, which adapter comprises a support for fastening a gravity body to be measured and at least two seat parts arranged at the support. The at least two seat parts comprise ellipsoid caps which can be held on a holder or on seating faces of a holder and are used to oscillate the adapter. 1. A gravity pendulum comprising:a holder; andan adapter comprising at least one carrier for fastening a gravity body to be measured,wherein the holder is connected to the adapter in a manner such that the adapter can be pendulated about a pendulum axis,wherein the adapter can be pendulated about at least one pendulum axis which does not run horizontally.2. The gravity pendulum according to claim 1 , wherein an inclination of the pendulum axis is designed in an adjustable manner.3. The gravity pendulum according to claim 1 , wherein the pendulum axis can be set in a manner such that a centre of gravity of an object to be measured lies below the pendulum axis.4. The gravity pendulum according to claim 1 , wherein the adapter is connected to the holder via a pivot claim 1 , and the pivot defines the pendulum axis.5. The gravity pendulum according to claim 1 , wherein the adapter is connected to the holder via a spherical bearing claim 1 , in particular a spherical air bearing.6. The gravity pendulum according to claim 1 , wherein the gravity pendulum comprises at least one further bearing.7. The gravity pendulum according to claim 1 , wherein at least one plane rotatable about a spatial axis is present.8. The gravity pendulum according to claim 7 , wherein an angular setting of the plane can be set so that different angle settings define different pendulum axes.9. The gravity pendulum according to claim 8 , wherein the plane comprises a sliding plate which can be rotated about the spatial axis and/or the angular setting can be adjusted mechanically claim 8 , hydraulically or pneumatically.10. The gravity pendulum according to ...

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Номер записи: 87
28-04-2016 дата публикации

Tire Uniformity Improvement Through Identification of Process Harmonics from Static Balance Measurements

Номер: US20160116363A1
Автор: Mawby William David, Sauls Jonathan, Simons Steve, Thomas Anton Felipe, Traylor James Michael
Принадлежит:

Systems and methods for improving tire uniformity using estimates of process harmonic magnitude(s) from static balance measurements for a set of tires are provided. In particular, a sequence of observed magnitudes of static balance can be obtained for a set of tires. The sequence of observed magnitudes can be analyzed in conjunction with a baseline magnitude pattern associated with the process harmonic to derive a magnitude of the process harmonic. The magnitude of the process harmonic can be used to improve the uniformity of tires. 1. A method for improving the uniformity of a tire using static balance measurements for a set of a plurality of tires , comprising:identifying at least one candidate process effect;obtaining a sequence of observed magnitudes for the set of tires, the sequence of observed magnitudes comprising a magnitude of static balance for each tire in the set of tires;obtaining a baseline magnitude pattern associated with the candidate process effect, the baseline magnitude pattern comprising a baseline magnitude of static balance for each tire in the set of tires;determining, with a computing device, a magnitude of a process harmonic associated with the candidate process effect based at least in part on the sequence of observed magnitudes and the baseline magnitude pattern; andmodifying tire manufacture based at least in part on the magnitude of the process harmonic.2. The method of claim 1 , wherein determining claim 1 , with a computing device claim 1 , a magnitude of a process harmonic associated the candidate process effect based at least in part on the sequence of observed magnitudes and the baseline magnitude pattern comprises:constructing a model correlating the sequence of observed magnitudes with the baseline magnitude pattern;estimating a coefficient for the model; anddetermining the magnitude of the process harmonic based at least in part on the coefficient.3. The method of claim 2 , wherein the coefficient is estimated using a ...

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Номер записи: 88
09-06-2022 дата публикации

WEIGHT ESTIMATION SYSTEM

Номер: US20220176959A1
Автор: KATSUKI Yoshio
Принадлежит: IHI CORPORATION

Provided is a weight estimation system (S) including: a change amount calculation device () which acquires a height of a loading platform (N) before loading a vehicle and a height of the loading platform (N) after loading the vehicle and calculates an amount of change between the heights of the loading platform (N) between before and after the loading; and a loaded weight estimation device () which estimates a loaded weight on the basis of a correlation between the amount of change and a loaded weight stored in advance. 1. A weight estimation system comprising:a change amount calculation device which acquires a height of a loading platform before loading a vehicle and a height of the loading platform after loading the vehicle and calculates an amount of change between the heights of the loading platform between before and after the loading; anda loaded weight estimation device which estimates a loaded weight on the basis of a correlation between the amount of change and a loaded weight stored in advance.2. The weight estimation system according to claim 1 , further comprising:a measuring device mounted on the vehicle and which measures a height of the loading platform of the vehicle.3. The weight estimation system according to claim 2 , whereinthe measuring device is one of a plurality of measuring devices,the plurality of measuring devices are provided in the vehicle, andthe weight estimation system further comprises:a center of gravity position estimation device which estimates a center of gravity position on the basis of differences between the heights of the loading platform after the loading, the heights being obtained from the plurality of measuring devices.4. The weight estimation system according to claim 3 , further comprising:a speed limit setting device which sets a speed limit of the vehicle on the basis of the center of gravity position. The present disclosure relates to a weight estimation system. Priority is claimed on Japanese Patent Application No. ...

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Номер записи: 89
09-06-2022 дата публикации

PRODUCT IMBALANCE ANALYSIS METHODS AND RELATED SYSTEMS AND APPARATUSES

Номер: US20220178781A1
Автор: Abrahamian John
Принадлежит:

In some embodiments, a system uses a two-dimensional polar plot to analyze imbalance of components. On the two-dimensional polar plot imbalance magnitude and orientation are depicted relative to a reference. Some embodiments use the two-dimensional polar plot to assess measurement error for measurement devices and components. Some embodiments use the two-dimensional polar plot to determine patterns associated with processing operations to identify sources of imbalance from the manufacturing process. Some embodiments use the two-dimensional polar plot to determine correlations between processing operations to identify sources of imbalance. 1. A balance assessment system comprising:a balance measurement system;a processor in communication with the balance measurement system; anda memory storing instructions that, when executed by the processor, configure the apparatus to:measure, via a balance measurement system, a plurality of components after a first operating process to obtain a first group of imbalance measurements, wherein each imbalance measurement comprises a magnitude and an orientation;measure the plurality of components after a second operating process to obtain a second group of imbalance measurements;generate a polar plot comprising the first group of imbalance measurements, the second group of imbalance measurements, and vectors connecting measurements from the first group of imbalance measurements and the second group of imbalance measurements that correspond to a same component;determine a correlation factor between the first group of imbalance measurements and the second group of imbalance measurements based on an average length of the vectors;determine that the first operating process drives an imbalance present after the second operating process when the correlation factor exceeds a threshold; andgenerate a report identifying the first operating process as a source of imbalance when the correlation factor exceeds the threshold.2. The balance ...

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Номер записи: 90
27-04-2017 дата публикации

SYSTEM AND METHOD FOR CHARACTERIZING TIRE UNIFORMITY MACHINES

Номер: US20170115187A1
Автор: Stanoszek Byron R., SYMENS RONALD E.
Принадлежит:

A method for characterizing spindle forces of a tire uniformity machine includes receiving a tire in an apparatus having an upper spindle and rim and a lower spindle and rim, wherein the rims capture the tire therebetween. A measurement data waveform is collected and an angular offset between the rims to define an engagement position is determined. The measurement data waveform is designated as a tire result waveform, and the measurement data waveform is appended to a collection of measurement data waveforms for each engagement position. Once the predetermined number of waveforms for the engagement position has been obtained, an average waveform for each engagement position is computed. A characterization waveform for each average waveform is then generated. 1. A method for characterizing spindle forces of a tire uniformity machine , comprising:receiving a tire in an apparatus having an upper spindle with an upper rim and a lower spindle with a lower rim, wherein said rims capture the tire therebetween;applying a load wheel to the tire and collecting a measurement data waveform;determining an angular offset of said lower rim in relation to said upper rim so as to define an engagement position among a plurality of engagement positions;designating said measurement data waveform as a tire result waveform;appending said measurement data waveform to a collection of measurement data waveforms for at least a predetermined number of measurement data waveforms for said engagement position; computing an average waveform for said engagement position;', 'generating a characterization waveform for each average waveform;', 'calculating a final tire waveform by subtracting the characterization waveform from said tire result waveform; and', 'storing said final tire waveform as the tire test result., 'determining whether said predetermined number of measurement data waveforms for said engagement position has been obtained and if not, storing said tire result waveform as a tire test ...

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Номер записи: 91
18-04-2019 дата публикации

METHOD FOR ACQUIRING AMOUNT OF UNBALANCE OF ROTOR

Номер: US20190113413A1
Автор: GUO Weijian, JIANG FANG
Принадлежит:

This invention provides a method for acquiring the unbalance of a rotor. It is used for decoupling the unbalance of the rotor and the unbalance of the balancing machine itself, including below procedures: set at least two reference points of the unbalance on the rotor, on the plane perpendicular to the rotating axis of the rotor, there is an angle between the lines connecting the projection of each reference point to the projection of the rotating axis; measure the unbalance of the rotor in sequence by using each reference point as angle reference; through vector calculation of the unbalance corresponding to two arbitrarily selected reference points, the unbalance of the rotor is obtained. By setting at least two zero angle reference points of the unbalance on the rotor before the measurement can avoid the influence to the unbalance of the rotor caused by the change of zero angle reference point during the measurement process. 1. A method to acquire unbalance of a rotor , for decoupling the unbalance of the rotor and the unbalance of the balancing machine itself , the mentioned balancing machine adopts free angle drive type to measure the unbalance of the rotor , with the characteristics as reflected through the following procedures:set at least two zero angle reference points of the unbalance on the rotor, on a plane perpendicular to a rotating axis of the rotor, there is an angle between lines connecting a projection of each reference point to the projection of the rotating axis;measure the unbalance of the rotor in a sequence by using each reference point as an angle reference, during the procedure, when moving an angle sensor from one position to a new position to detect a new zero angle reference point, position of the angle sensor should be set up so that the angle between two perpendicular lines as following is zero when view two lines along rotational axis, the two perpendicular lines are, perpendicular line drawn from the point where a space position of new ...

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Номер записи: 92
09-04-2020 дата публикации

Nonlinear Instability Scientific Demonstrator for Vehicle Dynamics

Номер: US20200111387A1
Автор: Shaojie Tang
Принадлежит: Individual

An apparatus and a method for demonstrating a new scientific discovery made by the inventor about the nonlinear instability of vehicles, like aircrafts, automobiles and ocean vehicles. The apparatus comprises a model and a three-gimbaled framework that permits the model to respond to inertial moments about the axes of which the moments of inertias are the smallest and the largest. In these two axes, the apparatus has restoring and damping capabilities. The apparatus also comprises external driven mechanisms to rotate the model about the intermediate principal axis of inertia. A method with closed form formulas for the external driven frequencies and amplitudes to be used to excite the nonlinear instabilities of the model is given. The model could be an aircraft, an automobile, a ship, or even a rectangular block.

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Номер записи: 93
03-05-2018 дата публикации

Static and dynamic stability measurement and optimization system

Номер: US20180120190A1
Автор: Clinton W. Erie, Jason S. Lee, Michael J. MacPherson, Ryan T. Paske
Принадлежит: International Business Machines Corp

A system and a method for stability measurement and optimization are provided. For example, the method includes loading an object onto a tilting device that includes one or more sensor devices, collecting resting corner weight values from the one or more sensor devices, tilting the object using the tilting device, collecting tilted corner weight values from the one or more sensor devices while tilting the object using the tilting device, calculating, using a data processor of the tilting device, a center of gravity value based on the resting corner weight values, the tilted corner weight values, and dimensions of the object, generating, using the data processor, a tipping angle based on at least the center of gravity value and the dimensions of the object, and generating, using the data processor, a recommendation to adjust the tipping angle.

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Номер записи: 94
14-05-2015 дата публикации

PORTABLE HIGH SPEED BALANCE MACHINE

Номер: US20150128698A1
Автор: Sinkhorn Jason
Принадлежит:

A portable machine includes a base assembly defining a vacuum chamber, the base assembly including a decking having a machine way. The portable machine also includes a machine component releasably coupled to the machine way, and a plurality of load-equalizing members coupled to the base assembly that evenly distribute and support a load positioned on the base. 1. A portable machine comprising:a base assembly defining a vacuum chamber, the base assembly including a decking having a machine way;a machine component releasably coupled to the machine way; anda plurality of load-equalizing members coupled to the base assembly that evenly distribute and support a load positioned on the base.2. The portable machine of claim 1 , wherein the base assembly includes a skirt and a seal disposed below the skirt to seal the base assembly to a ground surface.3. The portable machine of claim 1 , wherein the machine component is a pedestal assembly that includes two pedestals that are movable axially along the machine way relative to one another.4. The portable machine of claim 3 , wherein each pedestal is mounted on a spring-damper system that includes a set of springs and a damper to reduce dynamic forces.5. The portable machine of claim 4 , wherein the springs are pneumatic springs that each have a spring rate that is a function of a pressure supplied by an external pressure source.6. The portable machine of claim 4 , wherein the pedestal assembly also includes sensors coupled to the pedestals that measure unbalance based on motion in the spring-damper systems.7. The portable machine of claim 3 , further comprising a machine drive/controller that drives rotation of a component to be tested in the pedestal assembly claim 3 , the machine drive/controller also releasably coupled to the machine way.8. The portable machine of claim 1 , wherein the base assembly includes a support structure disposed below the decking claim 1 , the support structure including a metal frame with flanges ...

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Номер записи: 95
25-04-2019 дата публикации

METHOD, APPARATUS AND TERMINAL DEVICE FOR ROBOT FAIL PREDICTION

Номер: US20190118380A1
Автор: Su Haiwu, Xiong Youjun
Принадлежит:

The present disclosure is applicable to robot technology. A method, an apparatus and a terminal device for robot fall prediction are provided. The method includes: searching for a gravity center offset weighting value corresponding to a posture of a robot; correcting a gravity center offset of the robot basing on the gravity center offset weighting value; correcting an acceleration of the robot basing on a gravity center offset direction of the robot; and determining whether the robot will fall or not basing on the corrected gravity center offset and the corrected acceleration. The present disclosure improves the real-time performance and accuracy of the prediction for the fall of a robot through the fusion calculation of various data. 1. A computer-implemented method for robot fall prediction , comprising executing on a processor the steps of:searching for a gravity center offset weighting value corresponding to a posture of a robot;correcting a gravity center offset of the robot basing on the gravity center offset weighting value;correcting an acceleration of the robot basing on a gravity center offset direction of the robot; anddetermining whether the robot will fall or not basing on the corrected gravity center offset and the corrected acceleration.2. The method of claim 1 , wherein the searching for the gravity center offset weighting value corresponding to the posture of the robot comprises:obtaining a position parameter of each node of the robot utilizing a position sensor of a servo gear on the each node of the robot; andsearching for the gravity center offset weighting value corresponding to a set of the position parameter.3. The method of claim 1 , wherein the searching for the gravity center offset weighting value corresponding to the posture of the robot comprises:obtaining a position parameter of each node of the robot utilizing a position sensor of a servo gear on the each node of the robot;performing an interval discrete processing on the position ...

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Номер записи: 96
16-04-2020 дата публикации

APPARATUS FOR SENSING AN ELASTIC DEFORMATION OF A HOLLOW ELEMENT

Номер: US20200116584A1
Автор: BELLERA Jacques, DUVAL Marcelo, HELLIO Patrick, Queiras Nicolas, STORZ Tobias
Принадлежит:

An apparatus for sensing an elastic deformation of a hollow element, wherein the apparatus comprises at least one sensor that is arranged in a watertight capsule which is connected in a watertight manner to a connector device comprising at least one watertight electrical connector that is electrically connected to the at least one sensor, the at least one watertight electrical connector forming a first waterproof barrier of the connector device between an outside of the watertight capsule and the at least one sensor, and wherein the connector device comprises at least one further waterproof barrier that is formed between the first waterproof barrier and the at least one sensor. 1. An apparatus for sensing an elastic deformation of a hollow element , wherein the apparatus comprises at least one sensor that is arranged in a watertight capsule , the watertight capsule being connected in a watertight manner to a connector device comprising at least one watertight electrical connector that is electrically connected to the at least one sensor , the at least one watertight electrical connector forming a first waterproof barrier of the connector device between an outside of the watertight capsule and the at least one sensor , and wherein the connector device comprises at least one further waterproof barrier that is formed between the first waterproof barrier and the at least one sensor.2. The apparatus of claim 1 ,wherein the at least one further waterproof barrier comprises a second waterproof barrier that is formed by a sealed compartment of the connector device, the sealed compartment being arranged between the at least one watertight electrical connector and the at least one sensor.3. The apparatus of claim 2 ,wherein the sealed compartment is filled with an associated filling material.4. The apparatus of claim 3 ,wherein the associated filling material comprises at least one of a resin or a silicone.5. The apparatus of claim 2 ,wherein the at least one further ...

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Номер записи: 97
21-05-2015 дата публикации

METHOD AND APPARATUS FOR MEASURING TIRE GROUND CONTACT PROPERTIES

Номер: US20150135812A1
Автор: Kuwayama Isao
Принадлежит: BRIDGESTONE CORPORATION

A tire (T) for measurement, having applied thereto a required camber angle (CA) and slip angle (SA), is contacted against a rotatably driven rotating drum () having embedded therein a three-component force sensor (measurement unit ) capable of measuring ground contact pressure (P), width direction shear stress (τ), and circumferential shear stress (τ) (properties) of the tire (T). The rotating drum () and tire (T) are rotated and the tire (T) is passed over the three-component force sensor () multiple times. The tire (T) properties are measured multiple times, and the tire circumferential direction position of each measurement point is identified. A ground contact pressure distribution, width direction shear stress distribution, and circumferential shear stress distribution in a contact region of the tire (T) with the rotating drum () are obtained by repeating measurement and identification while displacing the tire (T) along the rotation axis of the rotating drum (). 1. A method for measuring ground contact properties of a rolling tire , comprising the steps of:rotating a rotating drum capable of being rotatably driven and a tire together, the rotating drum having embedded therein a measurement unit capable of measuring ground contact pressure, width direction shear stress, and circumferential shear stress of the tire, the tire being contacted against the rotating drum as a target of measurement;contacting the measurement unit to a plurality of locations in a tire circumferential direction on a tread surface of the tire, the locations passing over the measurement unit;measuring the ground contact pressure, the width direction shear stress, and the circumferential shear stress of the tire at the locations;identifying a position in the tire circumferential direction of each measurement point; andobtaining a ground contact pressure distribution, a width direction shear stress distribution, and a circumferential shear stress distribution in a contact region of the tire ...

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Номер записи: 98
02-05-2019 дата публикации

Eccentric Buildup Detection in Concrete Drums

Номер: US20190126510A1
Автор: Gregory A. Goldstein, Howard Livingston, Mark F. Roberts, Nathan A. Tregger, Richard K. JORDAN, Yan Glina
Принадлежит: VERIFI LLC

The present invention provides a method and system for detecting hardened concrete buildup in a mixer drum which is substantially devoid of plastic concrete. An exemplary method involves monitoring the hydraulic pressure required to rotate the drum through at least two successive rotations at constant speed, using a hydraulic pressure sensor on hydraulic charge side, discharge side, or preferably both sides of the hydraulic motor which turns the mixer drum; and detecting when the pressure/time data curve indicates eccentric behavior of the mixer drum, whereby an alarm or other indication is provided to confirm that the hardened concrete buildup in the truck is not acceptable. The buildup detection method and system of the present invention does not require the use of an automated slump monitoring system, but can be implemented in combination with such systems with favorable results and advantages.

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Номер записи: 99
19-05-2016 дата публикации

Inertia test apparatus for model ship

Номер: US20160138994A1
Автор: Hong Gun Sung, In Bo Park, Jang Pyo Hong, Jin Ha Kim, Sa Young Hong, Suk Kyu Cho, Sung Kwon CHOI, Yeonguk Won, Young-Sik Kim
Принадлежит: Korea Institute of Ocean Science and Technology KIOST

The present invention provides an inertia test apparatus for a model ship that mimics a pitching inertia radius of an actual ship by reciprocating a model ship. The apparatus includes a base frame providing a supporting force, vertical frames integrally fixed at both sides of the base frame and having a hinge shaft on an upper end, a swing including a pair of fixing members rotatably hung on the hinge shafts of the vertical frames and a bed integrally formed at a lower ends of the fixing members, and providing a pitching inertia radius of the model ship by reciprocating about the hinge shafts, with the model ship seated on the bed, and a centering adjuster seating the model ship on the bed of the swing and matching a center of gravity of the model ship with a center of the swing by allowing the model ship to move.

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Номер записи: 100