СТЕНД ДЛЯ ФИЗИЧЕСКОГО МОДЕЛИРОВАНИЯ ГЕОМЕХАНИЧЕСКИХ ПРОЦЕССОВ

Изобретение относится к испытательной технике, а именно к устройствам для моделирования физических процессов в нагруженном массиве горных пород на образцах в лабораторных условиях. Стенд содержит корпус для размещения испытуемого образца, размещенные в корпусе штампы для взаимодействия с образцом и механизмы нагружения по числу штампов, соединенные с ними. Стенд снабжен дополнительными механизмами нагружения по числу штампов, соединенными с ними, при этом каждый штамп соединен с двумя механизмами нагружения шарнирно с возможностью линейного перемещения и поворота. Технический результат: расширение объема информации путем обеспечения испытаний как при равномерном, так и при неравномерном и изменяемом в процессе испытаний распределении нагрузки в образце. 2 ил.

Устройство для определения механических характеристик материала

FIELD: machine engineering. SUBSTANCE: device comprising a metal-bearing structure mounted on a base with a hydraulic cylinder and a clamping device for a sample to which an accelerometer is connected, a load generating means with a working fluid source. According to the invention, the load generating means is designed as a metering pump with a pulsed fluid supply to a press system with a motor and a frequency converter connected thereto, while the pump is connected to through the fluid distributor and the rigid pipeline to the working cavity of the hydraulic cylinder, and is also equipped with a safety valve. EFFECT: accelerating determination of mechanical properties of machines details and elements. 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 632 632 C1 (51) МПК G01N 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016128629, 13.07.2016 (24) Дата начала отсчета срока действия патента: 13.07.2016 Дата регистрации: (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет" (RU) Приоритет(ы): (22) Дата подачи заявки: 13.07.2016 (45) Опубликовано: 06.10.2017 Бюл. № 28 C 1 56037537 A, 11.04.1981. RU 2029279 C1, 20.02.1995. RU 100257 U1, 10.12.2010. R U (54) Устройство для определения механических характеристик материала (57) Реферат: Изобретение относится к области жидкости, согласно изобретению средство машиностроения, в частности к испытанию создания нагрузки выполнено в виде деталей и конструкций машин, и предназначено дозирующего насоса с импульсной подачей для определения прочностных характеристик жидкости в систему пресса с подключенным к материала и позволяет ускорить определение нему электродвигателем с частотным механических характеристик (в частности предела преобразователем, при этом насос через выносливости) деталей и элементов машин. Для распределитель жидкости и жесткий ...

ЦЕНТРОБЕЖНАЯ УСТАНОВКА ДЛЯ РЕОЛОГИЧЕСКИХ ИССЛЕДОВАНИЙ МАТЕРИАЛА

Полезная модель относится к испытательной технике, к испытаниям на прочность образцов горных пород и других материалов. Техническим результатом является расширение функциональных возможностей центробежных установок. Снабжение установки фиксатором штока на направляющей позволяет проводить испытания на релаксацию механических напряжений при сохранении действия центробежной нагрузки и обжимающей нагрузки, а также переходить от испытаний на ползучесть к испытаниям на релаксацию механических напряжений и осуществлять обратное изменение этих режимов при сохранении действия центробежной нагрузки и обжимающей нагрузки. Это существенно расширяет функциональные возможности центробежных испытательных установок.

ФИЛЬТРАЦИОННАЯ УСТАНОВКА ТРЕХОСНОГО СЖАТИЯ

Полезная модель относится к области строительства, в частности для геотехнического контроля, и может использоваться при экспериментальных фильтрационно-суффозионных исследованиях и работах по определению статических прочностных и деформационных характеристик крупнообломочных грунтов, и направлена на повышение точности определения фильтрационно-суффозионных, прочностных и деформационных характеристик крупнообломочных грунтов натурного гранулометрического состава. Фильтрационная установка содержит рабочую камеру с крышкой, в которую вмонтирован датчик контроля порового давления, гидроцилиндр, установленный в основании рабочей камеры для создания осевой нагрузки, оболочку, систему подачи давления в гидроцилиндр, датчик вертикальных перемещений, систему подачи давления бокового обжатия в рабочую камеру и измерения объемных деформаций образца. Гидроцилиндр вмонтирован в крышку рабочей камеры и опирается поршнем, площадь которого увеличена как минимум в 3-5 раз до поперечных размеров рабочей ...

СТЕНД ДЛЯ ИССЛЕДОВАНИЯ ЭНЕРГООБМЕНА В БЛОЧНОМ МАССИВЕ ГОРНЫХ ПОРОД

Изобретение относится к испытательной технике, к устройствам для исследования энергообмена при деформировании и разрушении блочного горного массива. Стенд содержит опорную раму, размещенные в ней захват для образца и захват для контробразца, гидравлический механизм взаимного поджатия образцов, связанный с захватом для образца, гидравлический механизм взаимного перемещения образцов, связанный с захватом для контробразца, гидравлические аккумуляторы энергии, связанные с механизмами поджатия и перемещения, источники давления, связанные с соответствующими аккумуляторами, пульсаторы давления, соединенные с соответствующими аккумуляторами и выполненные в виде гидроцилиндров со штоками, подпоршневая полость которых соединена с соответствующими аккумуляторами, эксцентриков, кинематически связанных со штоками гидроцилиндров, валов вращения эксцентриков и приводов вращения валов. Валы установлены соосно, а стенд снабжен электромагнитными муфтами для соединения валов с соответствующими приводами и ...

Способ статического испытания нагружением стенового кольца смотрового колодца

Изобретение относится к области строительства. Сущность: в качестве испытуемой конструкции принимают стеновое кольцо смотрового колодца, упорные и опорные распределительные траверсы изготавливают составными, металлодеревянными из стальных брусьев двутаврового профиля и прикрепленного к нему отрезка тонкостенного швеллера. Стенд снабжают нагружающим устройством, выполненным в виде горизонтальной силовой рамы, в элементы которой включены упорная и опорная стальные балки и металлические тяжи, оборудованные натяжными и упорными гайками, также пружинными шайбами для фиксации положения испытуемого стенового кольца. В паз швеллера основания, посередине длины упорной стальной балки силовой рамы, устанавливают грузовой домкрат. Шток грузового домкрата упирается в полку двутавра упорной распределительной траверсы. В основном сечении стенового кольца устанавливают тензодатчики и нагружают сосредоточенной силой, прилагаемой на упорную траверсу посередине ее длины. Испытательную нагрузку принимают в ...

Стенд для исследования энергообмена в массиве горных пород

Изобретение относится к испытательной технике - к устройствам для испытания материалов, в частности горных пород, при исследовании энергообмена в массиве горных пород для установления возможных причин его опасных динамических проявлений. Стенд содержит опорную раму, размещенные в ней захват для образца, гидравлический механизм поджатия образца, связанный с захватом для образца, аккумулятор энергии, пневматический источник давления, соединенный с полостью аккумулятора энергии. Он снабжен механизмом формирования в образце сплошной трещины с возможностью ее выхода в полость аккумулятора энергии через его дно, выполненное в образце. Технический результат: моделирование процессов до и после выхода на поверхность флюида, находящегося под высоким давлением, трещины, формируемой в хрупкой среде.1 з.п. ф-лы, 1 ил.

Устройство для определения пластичности керамических масс

Изобретение относится к керамической промышленности преимущественно для переработки жидконластичны.х с.месей. Цель изобретения - определение оптимальных пара.метров пластичности. Устройство содержит раму с размещенным на ней поршневым прессом, установленную на станине с возможностью поворота, цилиндр для керамической массы с поршнем и -штоком, по длине которого выполнена канавка, с которой сообщен мундщтук. 1 з.п. ф-лы, 6 ил.

VERFAHREN ZUR MESSUNG VON VOLUMENAENDERUNGEN VON FLUESSIGKEITEN, INSBESONDERE SCHWUNDMESSUNGEN AN KUNSTSTOFFEN WAEHREND DER HAERTUNG UND VORRICHTUNG ZUR AUSFUEHRUNG DES VERFAHRENS.

DEHNBARE SPULE FUER TESTS VON FADENFOERMIGEM MATERIAL, INSBESONDERE VON OPTISCHEN FASERN.

Test cylinder with adjustable piston rod bearing journals - enabling piston stroke to be changed while retaining rated test force

The hydraulic test cylinder is for static and dynamic tensile, pressure and bending moment investigations. The cylinder (1) has adjustable piston-rod bearings (2). These enable the stroke of the piston (3) to be changed while retaining the full rated test force of the cylinder. The efficiency can thereby be increased in the dynamic mode by virtue of a diminished dead space. The bearings (2) can be positioned at one or both sides of the cylinder (1). The bearings (2) can be in the form of friction or hydrostatic bearings within adjustable journals. The adjustment can be via distance rings and/or sleeves (5).

Test-machine circuit arrangement for the damage-free clamping and resetting travel movement

The invention relates to a circuit arrangement for cutting off the travel movement of the force piston as a function of the starting force during the clamping of the test body and for the prepositioned resetting movement after the break of the test body. The object of the invention is to obtain a selection of the travelling speed independent of the starting force, the possibility of using test bodies of differing length without adjusting of the crosshead, adjustability of the lowest possible starting forces independently of the maximum force and the assumption of any resetting position over the entire stroke range, including the zero mid-position. According to the object, an unambiguous relationship between force and path signals, functional reliability in the event of actual path values not equal to zero, starting force independently settable to zero and monitoring of the test-body break by means of an actual force value are obtained. The invention provides a counterforce member connected ...

Verfahren und Vorrichtung zur Bestimmung der Kantenfestigkeit von scheibenförmigen Elementen aus sprödbrüchigem Material

Der Erfindung liegt die Aufgabe zu Grunde, ein verbessertes Messverfahren und eine entsprechende Messvorrichtung anzugeben, mit welchem die Kantenfestigkeit von scheibenförmigen Elementen aus sprödbrüchigem Material gemessen werden kann. Dazu wird eine lange Probe an den kurzen Kanten auseinandergezogen, wobei die Krafteinleitungspunkte neben dem Schwerpunkt der Probengrundfläche liegen.

Improvements in or connected with hydraulic testing machines

... 593,112. Testing physical qualities of materials. AVERY, Ltd., W. & T., and HINDE, P. B. July S, 19405, No. 14479. [Class 106 (ii)] A hydraulic testing machine has recoil alleviation means associated with a doubleacting cylinder c whereby, upon fracture of the specimen or an undue increase in the hydraulic pressure, a gaseous medium is compressed in a recoil cylinder e and, when the pressure in the hydraulic system reaches a predetermined maximum, a relief valve f is operated. The ram of the double-acting cylinder is connected to the straining cross-head b which is moved by several straining cylinders a and the interior of the double-acting cylinder is in communication through a valve c<1> with the recoil cylinder e in which a gaseous medium is maintained under a pre-determined pressure by free piston e<1>. Under normal conditions, oil may pass from the double-acting cylinder through a small orifice c<3> but, upon fracture of the specimen, oil enters the recoil cylinder and compresses the ...

Triaxial compression testing.

A constant cell volume triaxial testing apparatus providing a method for testing soil samples 1 in shear failure within a closed hydraulic jacket 3 whose volume remains unaltered during the loading process. A jack 19 applies an axial load and a submersible transducer 10 measures the force on the sample. The soil sample 1 is surrounded by a rubber sleeve 2. A system for adjusting the effective stiffness of the sleeve is described (Figs 7 - 9). ...

Test cell

Improvements in or relating to the testing of materials

Roller compactor integrated to a wheel track machine for laboratory tests on bituminous mixes

The apparatus is adapted to produce mixes of bitumen for road paving and then to test the bitumen for deforming effects generated by tyres rolling on a road. A mould containing the mix is closed by a slab C which is pressed onto the mix by discs A acting on the extensions B of the slab C. After forming the sample G the slab C is removed and a central wheel F is lowered to engage the surface of the sample.

IMPROVEMENTS RELATING TO GEOLOGICAL SAMPLE TESTING APPARATUS

... 1,206,396. Compression testing apparatus. WYKEHAM FARRANCE ENG. Ltd. Oct.18, 1967 [Oct.28, 1966], No.48380/66. Heading G1S. In a geological sample testing apparatus the sample 16 is compressed between plattens 15, 38 in a test cell 12 by a mechanically operated ram 21. Simultaneously, hydraulic fluid is fed in through a passage 37 to apply pressure to the sides of the test sample, the ram 21 is provided with passages 33, 34, 35 so that an additional pressure is applied to the sample by the ram by the fluid flowing through the passages. The area of the piston surface 31 of the ram is made equal to that of the sample abutment surface, so that when the ram moves, the increase in volume in the cylinder equals the decrease in the chamber, so avoiding pressure changes. A rubber diaphragm may be stretched over the test piece in the case of a porous material. The apparatus may be used for testing sand, rock, concrete or artificial stone.

Improvements in Apparatus for Testing the Tensile Strength of Paper, Textile Fabrics, and the like.

... 13,753. Wedgwood, R. E. June 7. Testing paper, fabrics, &c.-In apparatus for testing the tensile strength of paper, textile fabrics, &c., the piston of a liquid-compression device for measuring the applied stress is directly connected to the clamping-device for the paper, &c. The paper is fastened between the two clamps B, B<1>, the former of which is connected by side rods J to the piston G. The stress is applied by means of a hand-wheel E and screw-and-nut mechanism D, D', and is measured by the liquid-pressure gauge H connected to the cylinder F. The gauge H may be provided with a device so that the index-hand remains stationary after the fracture of the paper. The bed C of the apparatus has a series of perforations so that the clamp B' can be fixed in any position thereon.

An Improved Machine for Testing the Physical Properties of Metals.

... 22,792. Richards, G. B., and Bradley, E. Oct. 7. Testing physical qualities of materials. - An hydraulic testing-apparatus for transverse, tensile, and compressive tests comprises a fixed piston-head a formed integrally with a hollow piston d and supported by vertical standards b upon a hollow base c. The piston is surrounded by a verticallymovable inverted cylinder e connected by links g to a stress-bar h carrying adjustable pairs of knifeedges i. The upper knife-edge is carried by a cross-bar k detachably fastened to the piston head a. For textile tests, jaws l are attached to the base c and stress-bar h respectively. In the operation of the apparatus, liquid is forced by a pump from the receptable formed by the hollow base c and conveyed into the cylinder by a pipe m, the resulting stress applied to the test-piece being ascertained by means of the gauges n, one of which is used during compressive or tensile tests, and the other for transverse tests.

APPARATUS FOR TESTING OR MEASURING DEFORMATION AND FRACTURE OF TEST-PIECES UNDER MULTIAXIAL TENSION OR COMPRESSION

... 1512614 Tri-axial testing EUROPEAN ATOMIC ENERGY COMMUNITY 20 April 1976 [24 April 1975] 15964/76 Heading G1S A test piece 5 is held by bars 3 to three adjacent faces of a cubic member 1, the three opposite faces being provided with three cylindrical blocks 15 each containing a chamber 10 filled with pressurized fluid and a chamber 12 filled with liquid 13 which acts on a piston 11 fixed on a rod 9 attached to the test piece. The rod 11' connects to means 14 for measuring the deformation and the chambers 10, 12 are fed with gas and fluid through ducts 23, 25. Discharge ducts 16 from chambers 12 are connected to a head 17 by a single duct 24, 22 and the liquid pressure is released by fracturing a diaphragm 19 so that if the pressures on each side of the pistons 11 are initially balanced, a tension is applied to the test piece 5. The rate of loading can be varied by selection of an orifice 21. The blocks 15 are reversible so that compression can be applied to one or more axes.

Improvements in machines for testing materials, more particularly hydraulically operated testing machines

... 781,402. Fluid pressure testing machines. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Sept. 20, 1955 [Sept. 21, 1954; Dec. 18, 1054], No. 26829/55. Class 106 (2). In a material testing machine having a fixed head and a movable head 14 for clamping the test piece 15, the vertically positioned piston 6 of the fluid pressure means bears against the frame 4 of the machine, on which is carried the fixed head, whilst to the movable cylinder 9 of the pressure means is suspended, e.g. by a transverse member 11 and rods 12, 13, the movable clamping-head 14 so as to swing round a point lying on the longitudinal axis of the cylinder below the inlet 21 of the operating medium into the cylinder 9. Preferably the transverse member 11 is located on a crowned swell 19 of the cylinder 9 by means of a ring 16 of yielding material filled with fluid so that the centre of curvature A of the swell 19 lies on the longitudinal axis of the cylinder 9 and in the plane of support of the member 11 and this centre ...

THREE-AXIS CELL FOR TESTING GEO MATERIALS UNDER PRESSURE AND UNDER SHEARING

The method of which a bending moments and shear forces can be carried out simultaneously exposing hydraulically generated on planarly formed materials

Verfahren, nach welchem durch gleichzeitiges Einwirken von Biege und - Scherkräften auf ein flächenhaft ausgebildetes Untersuchungsmaterial mit elastischen Eigenschaften, Korrosionsvorgänge, oder Beständigkeit von beschichteten Materialen gegen bewegte Flüssigkeiten schneller beurteilt werden können, als wenn vergleichsweise jeweils Biegekräfte oder Scherkräfte allein zur Anwendung gelangen. Biologische Gewebe sind in einem Organismus Verformungsbeanspruchungen und Scherkräften gleichzeitig unterworfen. Unter den Bedingungen des Verfahrens, ist ihr Verhaltens im lebenden Organismus, zutreffender zu beurteilen. Beispielhaft wird das Verfahren anhand einer Untersuchung an einem biologischen Gewebe (14) gezeigt, welches in einen als Basiswanne (1), bezeichneten Behälter auf zwei Probenträger (11a), (11b) gelegt und mit zwei Klemmvorrichtungen (12a), (12b) fixiert wird, wobei die Basiswanne (1), mit einer Badflüssigkeit (16), niveaugleich mit den Probeträgern (11a), (11b), gefüllt ist. Eine ...

THREE-AXLE TEST PROCEDURE AND - EQUIPMENT

Procedure and apparatus in the control of a pneumatic load application device

Cement testing

Systems and methods provide for testing a cement by measuring both axial shrinkage/expansion and radial shrinkage/expansion of a sample.

Device for testing a ceramic socket insert for hip joint implants

The invention relates to a device for testing a ceramic socket insert (3) for hip joint implants having a receiving device (5), a pressure piece (6) and optionally having a plunger (7), wherein the receiving device (5) has a recess (9) with a positioning region (10) for receiving the socket insert (3) and the recess (9) has a receiving cone (11) in the positioning region (10). According to the invention, in order for the device to be universally applicable to all socket inserts (monolithic, modular, pre-joined) and therefore replace all current devices, an annular ductile adapter piece (8) having a conical outer surface contacting the receiving cone (11) and an inner surface contacting the socket insert is arranged in the positioning region (10) between the receiving device (5) and the socket insert (3), wherein the friction between the receiving device (5) and adapter piece (8) is lower than between the adapter piece (8) and socket insert (3).

CORROSION FATIGUE RESISTANCE TEST DEVICE BASED ON ACOUSTIC EMISSION

Disclosed is a corrosion fatigue resistance test device based on acoustic emission, comprising: a host (100), comprising a bracket (110) and a stretching mechanism disposed on the bracket; a clamping mechanism (200), comprising a first clamp (210) and a second clamp (220) disposed opposite to the first clamp (210), wherein the first clamp (210) and the second clamp (220) are both connected to the stretching mechanism, the stretching mechanism is configured to drive the first clamp (210) and the second clamp (220) to approach or move away from each other, the first clamp (210) is provided with an accommodating cavity (211) for accommodating a corrosive body, the accommodating cavity (211) has an opening (2111) formed at an end of the first clamp (210) close to the second clamp (220), and the first clamp can place a test piece (10) in the accommodating cavity (211) when fixing the test piece (10); a strain measuring mechanism, comprising a first acoustic emission sensor (310), a second acoustic ...

TEST CELL

PAPER MACHINE TENSION TESTER

APPARATUS FOR TESTING THE TENSILE STRENGTH OF SHEET MATERIAL

An improved testing device for testing the tensile strength of sheet material, such as paper, including a first pair of vertically moving jaws mounted on a support and a second pair of vertically moving jaws hanging from the first support in a pendulum manner and adapted to be at a dead-center position with the second pair of jaws juxtaposed to the first pair of jaws and in contact therewith for gripping a sheet of material to be tested therebetween. Low pressure, large diameter, pneumatic cylinders are provided for moving the lower jaws of each pair upwardly towards the fixed jaws against a self-aligning cylindrical spring.

PAPER MACHINE TENSION TESTER

METHODS OF TESTING A MONUMENT THAT IS TO BE ATTACHED TO A FLOOR OF AN AIRCRAFT

Methods of testing a monument that is attached to a floor of the aircraft. The testing uses a compliance matrix based on attachment points where the monument is attached to the floor of the aircraft. The testing uses a test monument that is equipped with extension members and load cells positioned at the corresponding attachment points. A test load is applied to the test monument and reaction loads are determined at each attachment point. During the test period, the compliance matrix and reaction loads are used to calculate displacements at each attachment point. Each of the extension members are then adjusted by the corresponding displacement. At the end of the test period, determination is made as to whether the test monument is capable of sustaining the predetermined load and adjusted displacements at the attachment points.

Materialprüfmaschine mit hydraulischem Antrieb und auf hydraulischem Wege betätigter Kraftanzeigevorrichtung.

Einrichtung an durch Druckflüssigkeit oder dergleichen betätigten Materialprüfmaschinen zur Vornahme von Dauerprüfungen.

Prüfmaschine zur Durchführung von Festigkeitsversuchen.

Einrichtung an hydraulischen Prüfmaschinen zum Einstellen eines der Prüflast überlagerten, durch exzentrische Belastung des Probekörpers erzeugten Momentes.

Steuereinrichtung für hydraulisch betriebene Werkstoffprüfmaschinen

Druckmittelgetriebene Werkstoffprüfmaschine, insbesondere solche hydraulischer Art

Werkstoffprüfmaschine

Vorrichtung zum Regeln der Arbeitsweise statisch wirkender Werkstoffprüfmaschinen mit hydraulischem Antrieb.

Einrichtung zur Regelung des Druckes im Druckübersetzer einer hydraulisch betriebenen Werkstoffprüfmaschine

Appareil pour appliquer une force horizontale à une pièce métallique

Ventilgesteuerte Werkstoff-Prüfmaschine mit doppelt wirkendem und geschlossenem Druckmittelkreislauf

Steuereinrichtung an hydraulischen Werkstoffprüfmaschinen

Differentialdruckhalter

Vorrichtung zur Korrektur eines durch Anstieg der Ölsäule verursachten Fehlers bei Materialprüfmaschinen

Hydraulische Prüfmaschine.

Druckerzeugungsanlage

Verfahren und Vorrichtung zur Herstellung einer starren Verbindung

Machine pour essais de traction

Einrichtung zur Steuerung des Druckverlaufes im Druckübersetzer von Werkstoffprüfmaschinen

Einrichtung zum Regeln des Druckes im Arbeitsdruckumsetzer von hydraulisch arbeitenden Werkstoffprüfmaschinen

Einrichtung zur Steuerung des Druckverlaufes im Druckübersetzer von Werkstoffprüfmaschinen

Einrichtung zum Konstanthalten der Druckspitzen im Arbeitszylinder einer hydraulisch arbeitenden Werkstoffprüfmaschine

Werkstoffprüfmaschine

Vorrichtung zur Untersuchung von Bodenproben

Einrichtung zur Steuerung der Prüfkraft von Prüfmaschinen

Cellule de fluage

Skin mechanical characteristics measuring device

The device is used to determine the elasticity or flexibility etc. of the skin, using a connection piece (4) with an opening (9) providing access to a defined area of skin (1), on which a suction force is exerted via the connection piece. The amount by which the skin is drawn onto the opening by the applied suction force is measured. Pref. the opening has a dia. of between 5 and 35 mm, with a seal (6) around the outside of the opening, the applied suction pressure lying in the range between 50 and 750 mbar. The skin drawn into the opening pref. acts on a sensor (7), with detection of the sensor deflection.

Procedure and mechanism for the measurement of several plastic material characteristics at an inspection piece from a foundry plastic material, manufactured in a case body.

Device of measurement for the measurement of the fineness and the cotton fiber maturity.

La presente invenzione si riferisce a un dispositivo di misurazione (600) per la misurazione della finezza e della maturità di fibre di cotone, tale dispositivo di misurazione (600) comprende una camera di misurazione (CM) nella quale è inseribile un campione di fibre di cotone, la camera di misurazione (CM) comprende una prima base e una seconda base che sono fra loro contrapposte e che sono attraversabili da un flusso di aria entrante nella camera di misurazione (CM) attraverso la prima base e uscente dalla camera di misurazione (CM) attraverso la seconda base, un condotto di alimentazione che ha un’estremità di ingresso associabile a una sorgente di un flusso di aria e un’estremità di uscita associata alla prima base della camera di misurazione, un regolatore di flusso (611) disposto lungo il condotto di alimentazione (609) fra le sue estremità di ingresso e di uscita, un primo sensore di pressione (612) per rilevare la pressione dell’aria che è disposto lungo il condotto di alimentazione ...

Device of measurement for the measurement of the fineness and the cotton fiber maturity.

La presente invenzione si riferisce a un dispositivo di misurazione (600) per la misurazione della finezza e della maturità di fibre di cotone, tale dispositivo di misurazione (600) comprende una camera di misurazione (CM) nella quale è inseribile un campione di fibre di cotone, la camera di misurazione (CM) comprende una prima base e una seconda base che sono fra loro contrapposte e che sono attraversabili da un flusso di aria entrante nella camera di misurazione (CM) attraverso la prima base e uscente dalla camera di misurazione (CM) attraverso la seconda base, un condotto di alimentazione (619) che ha un’estremità di ingresso associabile a una sorgente di un flusso di aria e un’estremità di uscita associata alla prima base della camera di misurazione, un regolatore di flusso (611) disposto lungo il condotto di alimentazione (609) fra le sue estremità di ingresso e di uscita, un primo sensore di pressione (612) per rilevare la pressione dell’aria che è disposto lungo il condotto di alimentazione ...

Improved tensile strength testing device

Multifunctional three-dimensional visual structural interface experimental device and experimental method

Improvements with the intensifiers to differential piston

DEVICE FOR GENERATING FORCES SIMULATING THE EFFECTS OF A LOAD ON THE SAFETY DEVICES HOISTING APPARATUSES AND MORE PARTICULARLY ON A LIFT TRUCK.

DEVICE FOR RESISTANCE TESTS Of SAND TEST-TUBES OF MOULDING

Dispositif perfectionné pour effectuer des essais sous contraintes sur des échantillons de roche et autres matériaux

Dispositif pour effectuer des essais sur des matériaux tels que des échantillons de roche par exemple sur lesquels on exerce des contraintes tri-axiales. Le dispositif comporte un corps allongé avec une cavité centrale ou l'on place successivement une première partie 6 d'une sonde acoustique, une semelle 9 portant un échantillon 12 cubique par exemple, des vérins 13 que l'on introduit le long des faces latérales de l'échantillon en les mettant en communication avec des canaux d'amenée 25 de fluide sous pression. Par dessus, sont placés une pièce de centrage 27 contenant un boîtier 26 pour une autre partie 28 de la sonde acoustique et des éléments 31, 32 formant couvercle. Un piston 35 permet l'application de contraintes sur l'échantillon par l'intermédiaire du boîtier 26. Des palpeurs latéraux 22 captent les déplacements de l'échantillon Application à l'étude de roches prélevées dans une formation souterraine, par exemple.

A CREEP CELL WHICH IS PRIMARILY INTENDED FOR USE IN NUCLEAR REACTORS

DEVICE FOR MEASURING TENSION AND ELASTIC MODULUS OF A WEB

Tensile strength testing machine - has moving part guided by sets of four rollers at top and at bottom

Triaxial hydraulic compression device for testing resistance of materials

L'invention a pour objet un dispositif hydraulique de compression triaxiale comprenant un corps (3, 4), une source de pression hydraulique, une chambre (17) dans laquelle est placée une éprouvette (10) ainsi qu'un premier piston (6) situé entre la source de pression et l'éprouvette (10). Ce piston (6) comporte un moyen (13) permettant la circulation du fluide entre la source de pression et la chambre (2). Le moyen (13) est un canal en T. Application à la mesure des caractéristiques de résistance d'un matériau.

PUMP SYSTEM FOR LOADING DEVICE

The purpose of the present invention is to provide a pump system for a loading device, which is simply operated and is capable of applying a high hydraulic pressure to a remote hydraulic cylinder. To this end, according to the present invention, a pump system for a loading device, which is used in the loading device applying a load to measure a support force of a post for civil engineering and construction, comprises: a hydraulic cylinder which repeatedly applies a load to the post, is moved in a direction in which a piston expands a stroke when a hydraulic pressure is applied to an expansion unit, and is moved in a direction in which the piston contracts the stroke when a hydraulic pressure is applied to a contraction unit; a case; an oil tank which is attached to a lower end of the case and contains oil for generating a hydraulic pressure; a first pump which suctions the oil from the oil tank and compresses the oil; a second pump which raises a hydraulic pressure supplied from the first ...

DEVICE FOR THE DETERMINATION OF PARAMETERS PARTICULARLY FOR THERAPEUTIC COMPRESSION MEASURES ON LIMBS

The invention relates to a device for the determination of parameters, particularly for therapeutic compression measures on limbs (10), comprising an anatomically-modelled limb (10), to which the compression measures may be applied, with sensors (42), provided on the limb (10), for recording said parameter. The surface (44) of the limb (10) is at least partially elastically-deformable in at least one direction and at least one simulation device for a muscle (22, 24) is provided in the limb (10), which may be controlled to give a merely partial deformation of the surface (44) of the limb (10).

CRIMP STRENGTH DESTRUCTIVE TEST MODULE

A testing module for destructively testing the crush strength of objects. Radially arranged fingers are moved against the object by rotation of a cam ring engaged against cam followers on the fingers. A hydraulic cylinder is connected to the cam ring, to rotate the cam ring. A load cell in one of the fingers records the force applied to the object until the object fails structurally.

Adjustable space frame for testing machine

A load frame used for testing purposes which includes means for reacting side loads between upper and lower cross heads of platens of a press or load frame.

Apparatus for inspecting mechanical strength of bottom portions of bottom-closed hollow pipes

A bottom strength-inspecting apparatus for bottom-closed hollow pipes is disclosed. This apparatus includes an air chuck 2 for holding an outer peripheral surface of the bottom-closed hollow pipe W, and a pressing elements coaxially provided with the air such an elastic pressing element 8 adapted to contact a bottom surface 9 of the bottom-closed hollow pipe W from an axially outer side of the hollow pipe and press the bottom surface by given forces.

BOREHOLE STRESS-PROPERTY MEASURING SYSTEM

A stress-property measuring system for in situ determination of stress states and material properties of soil and rock media into which the apparatus is disposed via a borehole. The apparatus used in carrying out the instant method comprises two axially-aligned cylindrical chambers. The first of said chambers is capable of exerting fluid pressure in a transaxial direction relative to the chamber and normal to the inner cylindrical surface of said borehole; the second of said chambers is completely unpressurized and pressure-insulated from said first chamber. Both chambers are fitted with a plurality of sets of diameter-measuring transducers for measuring changes in borehole diameter at a number of points in one diametrical direction along the borehole longitudinal cylindrical axis. Using this measuring device, stress state and material properties of surrounding ground medium may be determined as follows. Fluid pressure is introduced into said first pressurized chamber, and is varied through ...

Flow test machine and an associated measurement method, as well as an associated cleaning process

A flow test machine 2 which, for example, is able to be used for viscosity tests on plastics, comprises a test piston 4, a test channel 38, at least one test weight 72 and a drive unit 92. The test piston 4 is able to move through the test channel 38 by means of a weight force 79 of the test weight 72. The test weight 72 is able to be loaded by an actuating additional force 108, 108′ by means of the drive unit 92 between a starting position 151 and an end position. The actuating additional force 108 enables a movement of the test piston 4 in the direction of the weight force 79, said movement being accelerated in comparison with an effect of the weight force 79. In a melt viscosity test, after a heating step, a thermoplastic plastic is pressed through a test channel 38 by a test piston 4. In a measurement preparation step and/or a cleaning step, the test mass is lowered along a weight force direction 79 under the influence of an actuating additional force 108, 108′. In a method for cleaning ...

Hydraulic load producing means

Device for the determination of parameters particularly for therapeutic compression means on limbs

A device for the determination of parameters, particularly for therapeutic compression measures on limbs (10), comprises an anatomically-modelled limb (10), to which the compression measures may be applied, with sensors (42), provided on the limb (10), for recording said parameter. The surface (44) of the limb (10) is at least partially elastically-deformable in at least one direction and at least one simulation device for a muscle (22, 24) is provided in the limb (10), which may be controlled to give a merely partial deformation of the surface (44) of the limb (10).

MULTI-SHAFT PRESSURIZED ROCK MECHANICS TESTER

Disclosed is a multi-shaft pressurized rock mechanics tester, pertaining to the technical field of rock mechanics testing devices, comprising a base; the base is of an integral rectangular structure, and welded six vertical support plates symmetrically at the front and back ends, a -shaped bracket plate is horizontally welded at the top of the six vertical support plates (“ ” is a Chinese character, read as “Ri”), and a bracket plate is rotatably installed on the top section of the three rear vertical support plates, pressed against the -shaped bracket plate; the left and right sides of the base are symmetrically welded with four vertical bracing plates, an I-shaped installation plate is welded on the top of the four vertical bracing plates, four hydraulic cylinders are locked, fixed and hoisted on the bottom of the I-shaped installation plate with screws.

TRIAXIAL CELL FOR THE TESTING OF GEOMATERIALS IN COMPRESSION AND IN SHEAR

Cell for performing triaxial stress tests on a rock sample, and test method using such a cell

The present invention relates to a cell for performing triaxial stress tests on a rock sample, comprising a central body (1), in which are arranged a diaphragm (5) gripping the said sample and exerting lateral stresses on the latter, and a means of vertical pressure (6) acting on a section of the sample, the said cell also possessing means (10, 11, 12) for measuring deformations of the sample which are linked to the stresses exerted on it. The diaphragm (5) has a central longitudinal orifice, into which the sample (2) is introduced, a lateral outer surface coming in contact with the body (1) of the cell and a hollow inner volume (7) forming a chamber for confinement by means of a fluid introduced via a port (15). The invention is used in rock mechanics. ...

СПОСОБ НЕРАЗРУШАЮЩЕГО КОНТРОЛЯ НЕСУЩЕЙ СПОСОБНОСТИ ОДНОПРОЛЕТНЫХ ПРОГОНОВ

Изобретение относится к области строительства и может быть использовано при оценке категории технического состояния стальных прогонов при проведении обследования зданий и сооружений. Сущность: выявляют сечение прогона с максимальным прогибом f0 от эксплуатационной нагрузки, где устанавливают измеритель прогибов, после чего в данном сечении прогона прикладывают испытательную сосредоточенную нагрузку. Испытательную сосредоточенную нагрузку прикладывают 5 последовательными ступенями по 10% (F1), 20% (F2), 30% (F3), 40% (F4) и 50% (F5) от предельно допустимой нагрузки на прогон. Каждую ступень испытательной нагрузки выдерживают до стабилизации значений линейных перемещений, после чего фиксируют значение прогиба fi, i=1, 2, … 5, при данной ступени испытательной нагрузки Fi и прикладывают следующую ступень испытательной нагрузки Fi+1, а после выдержки пятой ступени нагрузки, испытательную нагрузку снимают, и испытания повторяют после стабилизации прогибов. На графике F-f откладывают экспериментальные ...

Стенд для моделирования процесса деформирования грунта уплотняющим веществом

Изобретение относится к исследованиям процесса деформации твёрдых сред. Стенд включает две плиты (1) и (2), между которыми размещён испытуемый материал (3). Для нагнетания уплотняющего вещества (5) в испытуемый материал (3) в стенде выполнено отверстие (4), в котором закреплено нагружающее устройство. Отверстие выполнено таким образом, что его ось параллельна примыкающим к испытуемому материалу поверхностям плит (1) и (2) и равноудалена от каждой из них. Испытуемый материал (3) уложен в виде перпендикулярных отверстию (4) полос и имеет различные свойства в разных полосах. Нагружающее устройство выполнено в виде заполненной уплотняющим веществом (5) трубки (6) с продольными прорезями (7) и поршнем (8) для вытеснения уплотняющего вещества (5) из трубки (6) в испытуемый материал (3) через её продольные прорези (8). Одна из плит (1) или (2) выполнена прозрачной, а стенд снабжён видеокамерой. Обеспечивается возможность моделирования процесса деформирования грунта уплотняющим веществом через ...

УСТРОЙСТВО ДЛЯ ИСПЫТАНИЙ КЕРАМИЧЕСКОГО ВКЛАДЫША ДЛЯ ИМПЛАНТАТОВ В ТАЗОБЕРДЕННЫЙ СУСТАВ

... 1. Устройство для испытания керамического вкладыша (3) имплантатов тазобедренного сустава с приемным устройством (5), нажимной деталью (6) и, не обязательно, пуансоном (7), причем в приемном устройстве (5) имеется выемка (9) с областью позиционирования (10) для размещения вкладыша (3), и у выемки (9) на области позиционирования (10) имеется приемный конус (11), отличающееся тем, что на области позиционирования (10) между приемным устройством (5) и вкладышем (3) размещается кольцевидный пластичный адаптер (8) с конической наружной поверхностью, которая прилегает к приемному конусу (11), и внутренней поверхностью, которая прилегает к вкладышу, причем трение между приемным устройством (5) и адаптером (8) меньше, чем между адаптером (8) и вкладышем.2. Устройство по п. 1, отличающееся тем, что приемный конус (11) полирован, по меньшей мере на участке позиционирования.3. Устройство по п. 1, отличающееся тем, что адаптер (8) состоит из латуни.4. Устройство по п. 1, отличающееся тем, что приемное ...

Einrichtung und Anordnung zum Messen hydraulischer Drucke,insbesondere fuer Werkstoffpruefmaschinen

Pruefmaschine fuer Druckbeanspruchung

Vorrichtung zur Messung der Kompressibilität eines Reibbelages eines Bremsbelages für eine Scheibenbremse

Vorrichtung zum Messen der Kompressibilität eines an einer Belagträgerplatte (4) befestigten Reibbelages (3) eines Bremsbelages (2) für eine Scheibenbremse, mit einer Grundplatte (1) zur Auflage des Bremsbelages (2) mit seiner Reibbelagseite, einem gegen die Belagträgerplatte (4) pressbaren Kolben (5) sowie in einem in Pressrichtung bewegbaren Messtaster (7), der mit einer Auswerteeinheit (8) in Wirkverbindung steht, dadurch gekennzeichnet, dass der Messtaster (7) in Funktion unabhängig vom Kolben (5) bewegbar ist und dabei die Belagträgerplatte (4) unmittelbar kontaktiert.

Prüfeinrichtung zum mechanischen Belasten eines Prüfkörpers.

Стенд для испытаний на местную устойчивость и несущую способность моделей балок

Полезная модель относится к области строительства, в частности к способам испытания строительных конструкций, и может быть использована для испытания маломасштабных балочных моделей. Стенд для испытаний содержит основание, опоры для балки, силонагружатель. На основании установлены две вертикально ориентированные стойки, соединенные сверху траверсой, а на внутренних стенках стоек закреплены опоры U-образной формы для модели балки, причем стойки закреплены на основании и траверсе с возможностью независимого продольного перемещения для изменения расстояния между ними. Силонагружатель выполнен в виде С-образной скобы, связанной с верхним и нижним талрепами, фиксирующими скобу на модели балки. Верхний талреп связан с динамометром, закрепленным на траверсе, а нижний талреп, оснащенный стопором от вращения, связан с талрепом, обеспечивающим нагружение модели балки, который, в свою очередь, связан с основанием. Стенд оснащен прикрепленной к основанию задней панелью, на которой закреплены индикаторы, фиксирующие деформацию модели балки, и стопор для нижнего талрепа. Стойки, основание и траверса связаны быстроразборными соединениями. Технический результат: обеспечение нагружения по схеме трехточечного изгиба с возможностью приложения сосредоточенной нагрузки в заданной точке верхнего пояса испытуемой модели балки. 1 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 178 359 U1 (51) МПК G01N 3/10 (2006.01) G01N 3/60 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01N 3/10 (2006.01); G01N 3/60 (2006.01) (21)(22) Заявка: 2017141873, 30.11.2017 (24) Дата начала отсчета срока действия патента: 30.03.2018 Приоритет(ы): (22) Дата подачи заявки: 30.11.2017 (45) Опубликовано: 30.03.2018 Бюл. № 10 1 7 8 3 5 9 R U (56) Список документов, цитированных в отчете о поиске: RU 96249 U1, 20.07.2010. RU 145156 U1, 10.09.2014. RU 142600 U1, 27.06.2014. US 4041806 A1, 16.08.1977. (54) СТЕНД ДЛЯ ИСПЫТАНИЙ НА МЕСТНУЮ ...

Mobile test system and methods for in situ characterization of stress and deflection dependent stiffness and bearing capacity of soils and geo-materials

An integrated mobile test system and methods for characterizing in situ stress or strain/deflection—dependent stiffness and bearing capacity enables the testing of engineering properties of natural, compacted, stabilized, and reinforced soils and geo-materials. The mobile test system and associated methods (1) prepare the ground for testing and (2) apply static or cyclic loading to one or more bearing plates of various geometries positioned at the ground surface or below the ground surface to determine both stress and deflection dependent stiffness relationships and the bearing capacity of the soil or geo-material. Optionally, the mobile test system and associated methods (3) apply ground confining stress conditions independent of the bearing plate loading.

Apparatus for bi-directional load testing of driven piles and injection piles, and method thereof

An apparatus for carrying out bi-directional load testing of close ended driven piles and injection piles utilizing a hydraulic jack, comprising an enclosure for housing the hydraulic jack. The apparatus includes a first hollow body, a second hollow body and a third hollow body. The first hollow body has an open upper end, an open lower end, and a base for attaching the top of the hydraulic jack. The second hollow body has an open upper end, an open lower end, and a base for attaching the base of the hydraulic jack. The third hollow body has an open upper end and an open lower end, and has an inner diameter corresponding to the outer diameter of the first hollow body and the second hollow body, the third hollow body being capable of being axially received by both the first hollow body and the second hollow body.

Split-type device for measuring rock mass deformation under high hydraulic pressure and construction method and use thereof

A split-type device for measuring rock mass deformation under high hydraulic pressure and a construction method and use thereof. Main components of the device include a metal measuring rod, a magnetic iron core, a shell, a waterproof coil framework, a coil, a tail accessory, a cable clamp, a cable, a signal processing bin, etc. Main electronic components are treated by adopting the all-metal shell and a vacuum particle sealing double-layer sealing process, and have hydraulic pressure resistance of 5 MPa or above. Measurement signals feature centralized processing, digitization and dual utilization of signals, i.e., after data of a plurality of sensors is processed in an electronic bin and then digitized signals are connected to an independent reader outside the bin or a centralized acquisition device for in-situ tests.

DEVICE AND METHOD FOR ANCHOR BOLT (CABLE) SUPPORTING STRUCTURE TEST AND ANCHORING SYSTEM PERFORMANCE COMPREHENSIVE EXPERIMENT

The present disclosure provides a device and a method for an anchor bolt (cable) supporting structure test and an anchoring system performance comprehensive experiment, and relates to the technical field of anchoring tests. The device includes a gantry, a loading mechanism, a test mechanism and a test piece, wherein the gantry includes a base and an operation platform; the loading mechanism includes a loading frame, a chuck, a surrounding rock force loading oil cylinder and a hollow drawing oil cylinder; the test mechanism includes a load, a displacement and an acoustic emission and other monitoring mechanisms, and the test piece includes a rock test piece, an anchor bolt (cable), an anchor net, and the like; the loading mechanism and the hollow drawing oil cylinder are disposed on the base, and a torsion motor and an anchor bolt drill are disposed on the operation platform, wherein the rock test piece is placed between bearing plates, one end of the anchor bolt (cable) is fixed by the chuck or anchored into the rock test piece, and the other end of the anchor bolt (cable) passes through the hollow drawing oil cylinder. The device is capable of not only testing mechanical properties of the anchor bolt (cable) and an anchoring member, but also realizing simulation of a stress environment of “five sides loaded and one side non-loaded” so as to perform a surrounding rock drilling response or anchoring system performance comprehensive experiment. 2. The device according to claim 1 , wherein the through-groove is disposed at an upper surface of the base claim 1 , and a depth of the through-groove is greater than an exposed length of the installed loading oil cylinder; the operation platform is disposed opposite to the base claim 1 , a sliding rail is disposed at an upper surface of the operation platform claim 1 , a sliding block moves along the sliding rail in cooperation with the sliding rail claim 1 , a sliding groove is further disposed at an upper surface of the ...

Ring Shear and Seepage-Coupled Apparatus and Ring Shear and Seepage-Coupled Test System for Rock and Rock Fracture under Tension or Compression Stress

A ring shear and seepage-coupled apparatus and a ring shear and seepage-coupled test system for rock and rock fracture under tension or compression stress are provided, relating to the technical field of mechanical testing devices. As to the ring shear and seepage-coupled apparatus, an axial piston rod is connected with an upper shear box, a torque transferring shaft is connected with a lower shear box, an axial force transducer is provided on the axial piston rod, a torque transducer is provided on the torque transmitting shaft, and a force transferring plate is fixedly connected onto the upper shear box. The force transferring plate is able to transmit a counter force for exerting a torque. Radial and circumferential seepage tests can be achieved by providing a seepage structure. The ring shear and seepage-coupled test system comprises a servo pump and the ring shear and seepage-coupled apparatus as mentioned above. 1. A ring shear and seepage-coupled apparatus for rock and rock fracture under tension or compression stress , comprising a first frame , a second frame , a first bottom plate , a second bottom plate , an axial piston rod , a torque transferring shaft , an axial force transducer , a torque transducer , an upper shear box , a lower shear box and a seepage structure ,wherein the first frame is in fixed connection with the first bottom plate, the second frame is in fixed connection with the second bottom plate, the first frame is positioned between the first bottom plate and the second bottom plate, and the second frame is positioned at a side of the second bottom plate, with the side away from the first bottom plate; the upper shear box and the lower shear box are positioned in the second frame, a specimen is fixedly arranged between the upper shear box and the lower shear box, and the upper shear box, the lower shear box and the specimen are positioned on a same axis;the torque transducer is provided on the torque transferring shaft; the torque ...

METHOD FOR CHECKING CERAMIC BALL HEADS FOR HIP-JOINT PROSTHESES

The invention relates to a method for checking ceramic ball heads () for hip-joint prostheses which have a receiving space () with a conical side face with a clamping cone angle γ and a cone inlet () and are subjected to a pressure in order to check areas of the receiving space (). To ensure that all the checked ball heads () also remain functionally ready for relevant, oblique in vivo load situations without suffering damage, it is proposed that only the area of the cone inlet () is subjected to a radial force perpendicular to the longitudinal axis of the ball head (). 110.-. (canceled)11. A method comprising checking a ceramic ball head for a hip-joint prostheses , which has a receiving space with a conical side face with a clamping cone angle γ and a cone inlet and is subjected to a pressure for testing areas of the receiving space , wherein only the area of the cone inlet is subjected to a radial force perpendicular to the longitudinal axis of the ball head.12. A method according to claim 11 , wherein a conical sleeve with a cone angle α is pressed into the receiving space for the checking step claim 11 , wherein the cone angle α is greater than the clamping cone angle γ.13. A method according to claim 12 , wherein the cone angle α is selected in the range of from 7° to 30° claim 12 , and the difference between clamping cone angle γ and cone angle α is between a minimum of 2° and a maximum of 25°.14. A method according to claim 13 , wherein the cone angle α is 18°.15. A method according to claim 12 , wherein the sleeve is closed on the circumferential surface thereof.16. A method according to claim 15 , wherein the sleeve comprises a copper alloy.17. A method according to claim 16 , wherein the copper alloy is brass.18. A method according to claim 13 , wherein a conical pressure stamp with a cone angle α identical to that of the sleeve is pressed axially with a force F into the sleeve.19. A method according to claim 18 , wherein the friction between sleeve and ...

VISUALIZED SUPERCRITICAL CARBON DIOXIDE FRACTURING PHYSICAL SIMULATION TEST METHOD

The present invention relates to a visualized supercritical carbon dioxide fracturing physical simulation test method, comprising: preparing a rock sample, preparing a prefabricated fracture; curing the rock sample; fixing the cured rock sample in a confining pressure chamber, and applying a preset three-way confining pressure and pore pressure to the rock sample; turning on a high-speed camera, injecting supercritical carbon dioxide fracturing fluid to the central hole, and continuously recording a fluid injection pressure and test surface image information of the rock sample until the test is ended; observing a hydraulic fracture inside. Through this method, it is possible to obtain images in the whole process of initiation and extension of the artificial fracture during supercritical carbon dioxide fracturing, and distribution rules of parameters, such as stress, strain and pore pressure on the surfaces of the rock sample. 1. A visualized supercritical carbon dioxide fracturing physical simulation test method , comprising:step a: preparing a rock sample, drilling a central hole in the rock sample, and preparing a prefabricated fracture;step b: cladding and pasting an upper surface of the rock sample with an upper PVC film, cladding and pasting a lower surface of the rock sample with a lower PVC film, and placing the rock sample in an incubator for curing;step c: fixing the cured rock sample in a confining pressure chamber of a visualized two-dimensional hydraulic fracture simulation experimental device, and applying a preset three-way confining pressure and pore pressure to the rock sample;step d: turning on a high-speed camera at a top portion of the visualized two-dimensional hydraulic fracture simulation experimental device, injecting supercritical carbon dioxide fracturing fluid from a bottom to the central hole of the rock sample, and continuously recording a fluid injection pressure and test surface image information of the rock sample until the test is ...

Large Sample Testing Device, Method, and System

The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications. 1. A method for testing an article comprising:a means for coupling the first end of the tubular;a means for coupling the second end of the tubular;a means for applying a first force;a means for applying a second force;a means for converting the first force into a third force;a means for converting the second force into a fourth force;a means for converting the third force into a tensile stress in the tubular; anda means for converting the fourth force into a bending moment in the tubular.2. The method of claim 1 , wherein the means for coupling the first end of the tubular is a split clamp.328. The method of claim claim 1 , wherein the means for coupling the second end of the tubular is a split clamp.4. The method of claim 1 , wherein the means for applying a first force comprises pressurizing a first hydraulic fluid.5. The method of claim 1 , wherein the means for applying a second force comprises pressurizing a second hydraulic fluid.6. The method of claim 1 , wherein the means for converting the first force into a third force includes a first lever.7. The method of claim 1 , wherein the means for converting the second force into a fourth force includes a second lever.8. The method of claim 1 , wherein the means for converting the third force into an axial load includes rotating the third force.9. The method of claim 1 , wherein the means for converting the fourth force into a bending moment includes applying the fourth force a distance away from the test article.10. A method of applying a bending moment to a test article claim 1 , the method comprising:applying a bending moment to the test article, wherein a compression force is applied to the test article, andapplying an axial load to the text article, wherein said axial load at least ...

Method and Apparatus for Determining the Edge Strength of Plate-Shaped Elements Made of Brittle-Fracture Material

An improved measurement method and a corresponding measurement device are provided that measure the edge strength of plate-shaped elements made of brittle-fracture material. For this purpose, a long sample is drawn apart at the short edges, wherein the force transmission points lie next to the center of gravity of the base surface of the sample. 1. A method for determining the edge strength of plate-shaped , brittle-fracture materials , comprising:providing a strip-shaped sample made of brittle-fracture material, the strip-shaped sample having two opposite-lying lateral faces, two lengthwise edges extending in the longitudinal direction, and two ends;joining each of the two ends of the strip-shaped sample to a retainer;drawing the two retainers apart so that the strip-shaped sample is subjected to a tensile stress directed in the longitudinal direction, the tensile force being transmitted asymmetrically with respect to a center line of the strip-shaped sample running between the two lengthwise edges so that a higher tensile force is exerted on one of the lengthwise edges than on the opposite-lying lengthwise edge;increasing the tensile force until the strip-shaped sample breaks apart; andrecording the tensile force at break of the strip-shaped sample.2. The method according to claim 1 , wherein the step of joining each of the two ends of the strip-shaped sample to the retainer comprises fastening the retainers to the strip-shaped sample in such a way that force transmission devices of the retainers are displaced with respect to the center line toward one of the lengthwise edges.3. The method according to claim 1 , wherein the step of joining each of the two ends of the strip-shaped sample to the retainer comprises using an adhesive connection to join the retainers the strip-shaped sample.4. The method according to claim 1 , wherein the step of joining each of the two ends of the strip-shaped sample to the retainer comprises fastening the retainers on one of the ...

Shear test device and test method of rock mass discontinuities under constant normal stiffness condition

The present invention relates to a shear test device and test method of rock mass discontinuities under constant normal stiffness condition. The device includes: a base used for placing a test piece; a loading framework fixedly connected with the base; a shear loading system used for applying a shear force to the test piece; a normal loading system used for applying a normal pressure to the test piece; a normal displacement monitoring system used for measuring the magnitude of normal displacement of the test piece in real time; and a computer control system used for receiving the data of the normal displacement of the test piece in real time, and constantly adjusting the normal pressure applied by the normal loading system to the test piece according to the principle that the normal stiffness of the test piece is unchanged.

LOAD SIMULATION TEST STAND AND METHOD OF OPERATING SAME

The invention relates to a load simulation test stand having at least one hydraulic test cylinder () which comprises at least one cylinder chamber (11) which can be charged with hydraulic fluid, preferably two cylinder chambers (11) which can be charged with hydraulic fluid and which act counter to one another, in the case of which load simulation test stand the at least one test cylinder (), in particular each of multiple provided test cylinders (), comprises at least one capacity element (), preferably a capacity element () which is exchangeable or which is adjustable in terms of hydraulic capacity, by means of which the hydraulic overall capacity of the at least one cylinder chamber (11) can be adjusted. The invention furthermore relates to a method for operating a load simulation test stand having at least one test cylinder (), wherein the at least one test cylinder () is connected to a load which is to be moved, and wherein the load is moved by means of a pressure control system () by temporally changeable control of the fluid pressure in the at least one cylinder chamber (11) of the at least one test cylinder (), and wherein, for the load which is to be moved by means of the at least one test cylinder (), in a manner dependent on the pressure control bandwidth of the pressure control system (), the natural frequency of the unit composed of the at least one test cylinder () and load is set to a value smaller than the pressure control bandwidth by changing the capacity of the capacity element (), preferably adjusting the capacity of the adjustable capacity element (). 1. A load simulation test stand comprising a hydraulic test cylinder having two hydraulic fluid compartments that can be acted upon with hydraulic fluid and that work against one another , wherein the test cylinder comprises a capacity element that is exchangeable or adjustable with respect to hydraulic capacity and with which the total hydraulic capacity of the compartment is adjustable.2. The ...

SLOPE ONE-WAY LOADING RUTTING TEST DEVICE

The invention discloses a slope one-way loading rutting test device, wherein the upper part of a loading frame is slidably connected with an upper cross beam of a frame through a loading frame rotating assembly, and a variable speed motor and a runner wheel are embedded in the lower part of the loading frame. The variable speed motor is in transmission connection with the runner wheel to realize one-way continuous loading of the runner wheel on a test piece. The lower part of a bearing frame is slidably connected with a lower cross beam of a frame through a bearing frame rotating assembly, a test piece mounting frame and a height adjusting device are sequentially embedded into the upper part of the bearing frame from top to bottom, and the height of the test piece mounting frame is adjusted through the height adjusting device. 1. A slope one-way loading rutting test device , comprising:a frame, a loading frame rotating assembly;a loading frame;a variable speed motor;a runner wheel;a bearing frame;a bearing frame rotating assembly;a height adjusting device;a test piece mounting frame and a temperature control box;wherein,the upper part of the loading frame is slidably connected with an upper cross beam of the frame through the loading frame rotating assembly; and,the variable speed motor and the runner wheel are embedded in the lower part of the loading frame;the variable speed motor is in transmission connection with the runner wheel to realize one-way continuous loading of the runner wheel on a test piece;the lower part of a bearing frame is slidably connected with a lower cross beam of the frame through a bearing frame rotating assembly;the test piece mounting frame and the height adjusting device are sequentially embedded into the upper part of the bearing frame from top to bottom;the height of the test piece mounting frame is adjusted through the height adjusting device;the temperature control box wraps the frame in a closed mode and is used for regulating and ...

APPARATUS, SYSTEM AND METHOD FOR MECHANICAL TESTING UNDER CONFINED CONDITIONS

An apparatus for measuring mechanical properties of a downhole material, including first and second fixtures each of the fixtures containing a force application fixture to apply a stress to a specimen of the downhole material. A confining sleeve wraps around portions of the first and second fixtures to form a sealed specimen chamber defined by an inner surface of the confining sleeve and ends of the first and second fixtures nearest the specimen. Wall of a confining chamber contain the first and second fixtures, the confining sleeve and the specimen therein. The confining chamber holds a hydraulic fluid therein such that the hydraulic fluid can exert a confining pressure on the confining sleeve to maintain the seal of the specimen chamber and to maintain contact between the inner surface of the confining sleeve and the specimen when the stress is applied to the specimen. First channels pass though one or more of the walls of the confining chamber to add and remove the hydraulic fluid to and from the confining chamber. Second channels pass though one or more of the walls of the confining chamber and through one of the first and second fixtures to add and remove a pore space fluid to and from specimen chamber ports open to the specimen chamber to maintain a pore pressure at the specimen chamber ports that is equal to or less than the confining pressure while the stress is applied to the specimen. A system and method are also disclosed. 1. An apparatus for measuring mechanical properties of a downhole material , the apparatus comprising:first and second fixtures each containing a force application fixture, the force application fixture configured to apply a stress to a specimen of the downhole material when located in-between the first and second fixtures;a confining sleeve configured to wrap around portions of the first and second fixtures that are nearest to the specimen to form a sealed specimen chamber, the sealed specimen chamber dimensions defined by an inner ...

LARGE DEFORMATION TENSILE TESTING SYSTEM

A large deformation tensile testing system, for use in testing a large deformation tensile of an anchor rod or an anchor rode, comprising a main machine frame (), a rear collet component () arranged at a first position on the longitudinal direction of the main machine frame (), a front collet component () movably arranged at a second position on the longitudinal direction of the main machine frame (), a telescoping apparatus (), a measurement and control apparatus, where a sensor module thereof senses the displacement and real-time tensile of the telescoping apparatus to form real-time data to be transmitted to an analysis module and a control module, the control module that controls, on the basis of a set measurement and control scheme and of an input of the sensor module, a testing process to proceed according to a set testing condition, the analysis module for analyzing the input of the sensor module to form a test result, and an output module for outputting same. The large deformation tensile testing system is capable of deriving a statics parameter of the anchor rod or anchor rode being tested. 1. A large deformation tensile testing system , for use in testing a large deformation tensile of an anchor shank or an anchor rope , wherein the large deformation tensile testing system comprises:a main frame;a rear collet component arranged at a first position in a longitudinal direction of the main frame;a front collet component movably arranged at a second position in the longitudinal direction of the main frame;a telescoping apparatus arranged near one end of the main frame, connected to the front collet component, and configured to stretch a sample clamped between the rear collet component and the front collet component according to a set control scheme; anda measurement and control apparatus including a sensor module, a control module, an analysis module, and an output module, wherein the sensor module is connected to the telescoping apparatus, senses a real-time ...

Material Testing System Having Improved Hydraulic Wedge Clips

A material testing system that uses at least one hydraulic grip is improved with cable clips that are attachable to a respective lateral side of each hydraulic grip wedge. Each cable clip has another end that extends to engage a cable(s) extending from a corresponding wedge retention spring hole. The cable(s) enable manual extension of a wedge retention spring for engagement and disengagement from the hydraulic grip wedge. The cable clip maintains the cable in a noninterfering position during operational use of the material testing system. 1. A material testing system comprising: a base positioned on a support surface,', 'a main actuator supported by the base and below a lower attachment fixture that is vertically actuated by the main actuator, and', 'an upper fixture that is held at a distance from the lower attachment fixture; and, 'a load frame comprising a fixture body having a wedge recess,', 'a pair of hydraulic grip wedges received in opposition within the wedge recess, each hydraulic grip wedge having a pair of vertical wedge retention spring holes that are perpendicularly intersected respectively by a horizontal retention bolt hole,', 'four retention springs having one end attached to the fixture body and another end extending upward respectively in the vertical wedge retention spring holes,', 'a cable engaged to the other end respectively of each extension spring and extending out of the corresponding hydraulic grip wedge, enabling manual extension of the respective retention spring,', 'at least two spring retention bolts received respectively in the horizontal retention bolt holes to attach to the other end of the wedge retention spring during extension by the corresponding cable, and', 'four or more cable clips that are respectively attached at one end to a lateral side of one of the pair of hydraulic grip wedges and engaged at another end to a corresponding cable to maintain the cable in a noninterfering position., 'at least one hydraulic grip that ...

Fixed Displacement Hydraulic Actuator Disconnect

A shaft decoupling system () includes an inner shaft () couplable to an actuator (), an outer shaft () aligned coaxially with the inner shaft, and a bearing release collar (). The bearing release collar is biased toward a first position by a biasing mechanism and configured to be moved to a second position against a biasing force of the biasing mechanism () in response to the bearing release collar contacting a collar strike plate () as the actuator moves the shaft decoupling system. When the bearing release collar is in the first position, a bearing () is held by the bearing release collar to prevent respective movement of the inner shaft and the outer shaft. When the bearing release collar is in the second position, the bearing release collar permits the bearing to retract such that the inner shaft is permitted to move coaxially with respect to the outer shaft. 1. A shaft decoupling system , comprising:an inner shaft couplable to an actuator;an outer shaft aligned coaxially with the inner shaft;a bearing release collar biased toward a first position by a biasing mechanism and configured to be moved to a second position against a biasing force of the biasing mechanism in response to the bearing release collar contacting a collar strike plate as the actuator moves the shaft decoupling system;wherein, when the bearing release collar is in the first position, a bearing is held by the bearing release collar to prevent respective movement of the inner shaft and the outer shaft; andwherein, when the bearing release collar is in the second position, the bearing release collar permits the bearing to retract such that the inner shaft is permitted to move coaxially with respect to the outer shaft.2. The shaft decoupling system of claim 1 , wherein the bearing comprises a plurality of bearings having substantially linear inner and outer surfaces.3. The shaft decoupling system of claim 2 , further comprising:a bearing retention collar fixedly coupled to the outer shaft and ...

Large Sample Testing Device, Method, and System

The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications. 1. A load frame test device comprising:a support column;a first crosshead;a first lever rotatable about a first pivot pin and attached to a first hydraulic cylinder about a second pivot pin at a first end;a second lever rotatable about the first pivot pin and attached to a second hydraulic cylinder about a third pivot pin at a first end;a first test article interface coupled to the second lever; anda second test article interface rotatable about a second pivot pin.2. The apparatus of claim 1 , further comprising a second test article interface coupled to a lever rotatable about a pin with the frame.3. The apparatus of claim 2 , wherein the lever is connected to the second hydraulic cylinder at a first end.4. The apparatus of claim 1 , wherein the first force applies a substantially axial load.5. The apparatus of claim 1 , wherein the second force applies a substantially bending moment.6. The apparatus of claim 1 , wherein the first force applies a substantially axial load in the test article and the second force applies a bending moment.7. The apparatus of claim 1 , wherein the first hydraulic cylinder is coupled to the frame.8. The apparatus of claim 1 , wherein the first lever is further attached to the frame about a fourth pivot pin at a second end.9. The apparatus of claim 1 , wherein the first test article interface is a split clamp.10. The apparatus of claim 1 , wherein the second test article interface is a split clamp.11. The apparatus of claim 1 , further comprising a tubular test article.12. The apparatus of claim 1 , further comprising a flange test article.13. The apparatus of claim 1 , further comprising a connection test article.14. The apparatus of claim 1 , further comprising a welded test article.15. A load frame test ...

Cavity-type load box

Disclosed is a cavity-type load box, comprising an oil cavity unit. The oil cavity unit comprises a sealing plate with a U-shaped section and two flat plates with edges wrapped in the sealing plate and is provided with an oil injection structure. Liquid oil injected from the oil injection structure flows into the oil cavity unit. Herein, a top flat plate refers to the uppermost flat plate. The edges of the two flat plates are wrapped in the sealing plate with the U-shaped section, so that after the liquid oil enters an oil cavity via the oil injection structure, the sealing plate is stretched under the pressure of the liquid oil to cause deformation of the oil cavity; and as a stress required for deformation of the sealing plate is very small, the pressure generated by the liquid oil directly acts on an object on the upper or lower surface of the cavity-type load box, and accordingly, the object is pushed.

Device and Method for Evaluating Fracture Initiation and Propagation, and Stress Sensitivity of Propped Fracture

A device and method for evaluating fracture initiation and propagation, and a stress sensitivity of a propped fracture is provided. The device includes a core part, a confining pressure loading part, a fracturing fluid pumping part, a stress sensitivity testing part and a fracture monitoring part. The method evaluates fracture initiation and propagation, and a stress sensitivity of a propped fracture using the above device and is reliable and simple to operate and guides optimization of construction parameters of hydraulic fracturing, thus achieving improvement in productivity of an oil and gas well. 14224273835. A device for evaluating fracture initiation and propagation , and a stress sensitivity of a propped fracture , comprising a core part , a confining pressure loading part , a fracturing fluid pumping part , a stress sensitivity testing part and a fracture monitoring part , wherein the core part comprises a core () , a wellbore casing () , an uncased wellbore () and a core supporting plate () , the core is located on the core supporting plate , at most 16 acoustic emission probes () are installed in the core , a borehole is arranged in a middle of the core , the wellbore casing is arranged at an upper end of the borehole , and the uncased wellbore is arranged at a lower end of the borehole;{'b': 21', '23', '30', '21', '36, 'wherein the confining pressure loading part comprises triaxial hydraulic pumps, an oil tank (), a confining pressure cover plate () and a confining pressure base (), inlet ends of the triaxial hydraulic pumps are connected with the oil tank () and outlet ends of the triaxial hydraulic pumps are respectively connected with triaxial oil cylinders, the core part is located in a space formed by the confining pressure cover plate and the confining pressure base, the oil cylinders, backing plates, seepage plates and the core are respectively arranged in the space from outside to inside, the seepage plates are fixed and sealed with the core ...

Torque and Combined Load Fixture and Test Method

A method and apparatus for rotating a test specimen and simultaneously applying a torque, bending moment, and an axial load without the applied forces interfering with each other.

AUTOMATIC TEST SYSTEM AND METHOD FOR MECHANICAL PARAMETERS OF SURROUNDING ROCK APPLICABLE TO TBM

An automatic test system and method for mechanical parameters of surrounding rock applicable to a TBM. The system includes: an aggregate portion collecting a rock slag in a TBM tunneling process in real time; a gripping portion gripping any rock slag from obtained rock slags; a visual processing apparatus performing three-dimensional imaging for a rock slag under test in an infrared ranging manner; calculating positions of loading points for an abrasiveness test experiment, and determining, based on a spacing between loading points, whether rock slag under test meets a requirement; and determining actual positions of loading points if the rock slag under test meets the requirement, and determining a region, on a surface of rock slag, that meets a set condition as an action region for abrasiveness test experiment; and a rock abrasiveness test apparatus automatically performing an abrasiveness test for a rock slag under test that meets a requirement. 1. An automatic test system for mechanical parameters of surrounding rock applicable to a TBM , comprising:an aggregate portion, capable of collecting a rock slag in a TBM tunneling process in real time;a gripping portion, capable of gripping any rock slag from obtained rock slags; a visual processing apparatus, capable of: performing three-dimensional imaging for a rock slag under test in an infrared ranging manner; calculating positions of loading points for an abrasiveness test experiment, and determining, based on a spacing between the loading points, whether the rock slag under test meets a requirement; and determining actual positions of the loading points if the rock slag under test meets the requirement, and determining a region, on a surface of the rock slag, that meets a set condition as an action region for the abrasiveness test experiment; anda rock abrasiveness test apparatus, capable of automatically performing an abrasiveness test for a rock slag under test that meets a requirement.2. The automatic test ...

NON-DESTRUCTIVE APPARATUS, SYSTEM AND METHOD FOR DETERMINING PULL-OUT CAPACITY OF FRICTION NAILS

Embodiments include an apparatus for determining a pull-out capacity of a nail disposed in concrete. The apparatus includes control processing circuitry and a Schmidt hammer electrically connected to the control processing circuitry. The Schmidt hammer is configured to strike the nail during a test event and to record a rebound value for the nail. The control processing circuitry is configured to calculate an estimated pull-out strength for the nail using the rebound value of the nail that resulted from the test event, a predetermined nail length, a predetermined nail penetration depth in the concrete, and an estimated predetermined strength of concrete. The apparatus also includes a remote computer configured to communicate with the control processing circuitry and to store an estimated pull-out strength of the nail. The control processing circuitry includes a memory and a database. 1. An apparatus for determining a pull-out capacity of a nail disposed in concrete , comprising:control processing circuitry; anda Schmidt hammer electrically connected to the control processing circuitry, wherein the Schmidt hammer is configured to strike the nail during a test event and to record a rebound value for the nail,wherein the control processing circuitry is configured to calculate an estimated pull-out strength for the nail using the rebound value of the nail that resulted from the test event, a predetermined nail length, a predetermined nail penetration depth in the concrete, and an estimated predetermined strength of concrete.2. The apparatus according to claim 1 , further comprising a remote computer configured to communicate with the control processing circuitry and to store an estimated pull-out strength of the nail claim 1 , wherein the control processing circuitry includes a memory and a database.3. The apparatus according to claim 2 , wherein the remote computer is configured to monitor an installation process in real time of each nail claim 2 , compare the ...

REFLECTIVE PARTICULATE COMPOSITIONS INCLUDING A PARTICULATE MIXTURE HAVING IMPROVED HARDNESS, METHODS OF MAKING THE SAME, AND METHODS FOR ANALYZING PARTICULATE MIXTURE STRENGTH

A reflective granular composition including a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt. A method for making a reflective granular composition includes the steps of mixing together a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt to form a particulate mixture, forming a slurry from the particulate mixture by adding to the particulate mixture water and a binder material, granulating the slurry, drying the granulated slurry, and kilning the dried, granulated slurry to form the reflective granular composition. Methods of analyzing the strength of a reflective granular composition are also disclosed. 1. A reflective granular composition comprising:a reflective pigment material comprising a majority of kaolin clay; anda hardening additive comprising a sodium salt or another salt.2. The reflective granular composition of claim 1 , wherein the kaolin clay comprises at least about 80% by weight of the reflective pigment material.3. The reflective granular composition of claim 2 , wherein the reflective pigment material comprises a secondary pigment component selected from the group consisting of: metal and transition metal oxides claim 2 , alkaline earth metal sulfates claim 2 , alkaline earth metal carbonates claim 2 , transition metal silicates claim 2 , metal silicates claim 2 , minerals claim 2 , and mixtures thereof.4. The reflective granular composition of claim 1 , wherein the kaolin clay comprises about 100% by weight of the reflective pigment material.5. The reflective granular composition of claim 1 , wherein the sodium salt comprises from about 1% to about 15% by weight of the overall reflective granular composition.6. The reflective granular composition of claim 1 , wherein the sodium salt comprises from about 3% to about 12% by weight of the overall reflective granular composition.7. The ...

PROPORTIONAL AIR PRESSURE CONTROL FOR A MATERIALS TESTING SYSTEM

The present disclosure relates to an electronic control system for pneumatic grips, using proportional air pressure control, as employed in the field of materials testing. The disclosed embodiments allow for variable gripping pressure thereby increasing the safety for the user/operator. Additionally, materials testing will not commence until the proper pressure for testing has been achieved. 1. An apparatus for controlling pressure in a materials testing device , including:a device for receiving an electronic command relating to a first target pressure;a device for receiving an electronic command relating to a second target pressure, wherein the second target pressure is higher than the first target pressure;a device for receiving a signal indicating measured pressure in the apparatus;a device for generating a command for selectively applying the first target pressure or the second target pressure to an output, the output being received by opposing grips of a materials testing device;a device for receiving the command for selectively applying the first target pressure or the second target pressure to an output, wherein the first target pressure is applied in response to a first command and the second target pressure is applied in response to a subsequent command; anda processing device for comparing the measured pressure to the selected first or second pressure and generating pressure control signals for varying pressure.2. The apparatus of wherein the first target pressure operates the opposing grips of a materials testing device in a safe range for the human operator.3. The apparatus of wherein the first target pressure operates the opposing grips of a materials testing device in a range of greater than zero to fifteen psi.4. The apparatus of wherein the second target pressure is the full pressure required for a materials testing device.5. The apparatus of wherein the second target pressure is in a range of greater than fifteen psi to one hundred psi.6. The ...

Rapid rotation opening type high-pressure rock triaxial pressure chamber with loading structure

The invention relates to a rapid rotation opening type high-pressure rock triaxial pressure chamber with a loading structure, a traditional loading frame is omitted, a pressure chamber shell is fixedly connected with an actuator cylinder barrel through high-strength bolts to form a counterforce body loading maximum principal stress, clearance is saved by 50%. An opening manner of up-and-down motion is abandoned, a pressure chamber sealing and spacing sleeve is sleeved outside the pressure chamber shell and can rotate, rock specimen access openings are formed on the pressure chamber shell and the pressure chamber sealing and spacing sleeve, and a dismountable plugging block is arranged in each rock specimen access opening in the pressure chamber shell, so that a rapid rotation opening manner is achieved. As such, a traditional process in which the high-strength bolts need to be disassembled and assembled is omitted.

MATERIAL TESTER

A tensile tester includes a tester body having at least one detector and a controller, and the controller includes a first branch setting unit that sets a first branching condition at a first branch point at which a test condition branches into two or more test conditions in association with a detection result of the detector, a first condition setting unit that sets a first test condition that is a test condition before the first branch point, and a second condition setting unit that sets a second test condition that is a test condition after the first branch point. 1. A material tester comprising:a tester body including at least one detector, and a controller, whereinthe controller includes:a branch setting unit that sets a branching condition at a branch point at which a test condition branches into two or more test conditions in association with a detection result of the detector;a first condition setting unit that sets a first test condition that is a test condition before the branch point; anda second condition setting unit that sets a second test condition that is a test condition after the branch point.2. The material tester according to claim 1 , further comprisinga display, whereinthe controller further includes:a first condition display unit that displays the first test condition on the display; anda branching condition display unit that displays the branching condition on the display,the first condition display unit displays a first object that receives an instruction to display the branching condition on the display, andthe branching condition display unit displays the branching condition on the display when a predetermined operation is performed on the first object.3. The material tester according to claim 2 , whereinthe controller further includes a second condition display unit that displays the second test condition on the display,the first condition display unit displays a second object that receives an instruction to display the second test ...

DEFORMATION CONTROLLABLE COMPRESSION RING-BASED MECHANICAL TEST SYSTEM FOR ROCKS WITH VARIABLE STIFFNESS AND TEST METHOD THEREOF

The present invention discloses a deformation controllable compression ring-based mechanical test system for rocks with variable stiffness and a test method thereof, which comprises a loading device, a variable stiffness regulating device, a data monitoring system and a controlling system; the energy storing spring in the loading device allows the rebounding direction of the loading device to be contrary to the strain direction of the test-piece, which eliminates the energy supplement of the loading device to the test-piece and realizes the loading of an oversized stiffness on the test system; the variable stiffness regulating device precisely regulates the loaded stiffness by regulating the loaded stiffness of the test system according to test requirements, which realizes the test of loading different stiffness on the same test system and avoids the influences of differences to loading parameters between different test systems on the test results. 1. A deformation controllable compression ring-based mechanical test system for rocks with variable stiffness , comprising a loading device , a variable stiffness regulating device , a data monitoring system and a controlling system , whereinthe loading device comprises an outer frame, a loading cylinder, a lift loading beam, an energy storing spring and a loading beam lifting and driving mechanism;the cylinder block of the loading cylinder is mounted on the top of the outer frame and the loading cylinder faces towards the bottom;the loading beam lifting and driving mechanism is connected to the lift loading beam and is used to drive the up-and-down motion of the lift loading beam;the loading beam lifting and driving mechanism comprises a plurality of vertically provided ball screws and a screw driving motor,wherein, the upper end of each ball screw is mounted on the top of the outer frame through a top screw supporting seat and the lower end of each ball screw is mounted on the base of the outer frame through a bottom ...

ISOSTATIC BREAKING STRENGTH TESTER AND ISOSTATIC BREAKING STRENGTH TEST METHOD

A breaking strength tester includes: a tubular pressure container having opened both ends to house a part of a pillar-shaped honeycomb structure including a partition walls and a circumferential wall; a tubular pressurization elastic body disposed to surround an entire circumference of a pressurized portion having a length equal to or less than ½ of a length in an axial direction of the circumferential wall; a partial pressurization unit which elastically deforms the pressurization elastic body and applies uniform pressure to the entire circumference of the circumferential wall of the pressurized portion of the honeycomb structure housed in the pressure container up to pressure test strength; and a pressure measurement unit which measures a value of the uniform pressure applied to the circumferential wall by the pressurization elastic body. 1. An isostatic breaking strength tester comprising:a tubular pressure container in which a part of a pillar-shaped ceramic honeycomb structure including lattice-shaped partition walls to define a plurality of cells extending from one end face to another end face and a circumferential wall is housed, the tubular pressure container having at least a part of both ends being opened;a tubular pressurization elastic body disposed inside the pressure container so as to surround an entire circumference of a pressurized portion having a length equal to or less than ½ of a length in an axial direction of the circumferential wall of the ceramic honeycomb structure;a partial pressurization unit for elastically deforming the pressurization elastic body toward the circumferential wall and applying uniform pressure to the entire circumference of the circumferential wall of the pressurized portion of the ceramic honeycomb structure housed in the pressure container up to a pressure test strength; anda pressure measurement unit for measuring a value of the uniform pressure applied to the circumferential wall by the pressurization elastic body.2. ...

COMPOSITION AND METHOD TO FORM A COMPOSITE CORE MATERIAL

A composite core material and methods for making same are disclosed herein. The composite core material comprises mineral filler discontinuous portions disposed in a continuous encapsulating resin. Further, the method for forming a composite core material comprises the steps of forming a mixture comprising mineral filler, an encapsulating prepolymer, and a polymerization catalyst; disposing the mixture onto a moving belt; and polymerizing said encapsulating prepolymer to form a composite core material comprising mineral filler discontinuous portions disposed in a continuous encapsulating resin. 1. A composite core material , comprising mineral filler discontinuous portions disposed in a continuous encapsulating resin.2. The composite core material of claim 1 , wherein said mineral filler is selected from the group consisting of calcium sulfate claim 1 , calcium carbonate claim 1 , aluminum trihydrate claim 1 , talc claim 1 , gypsum claim 1 , magnesium hydroxide claim 1 , and dolomite.3. The composite core material of claim 2 , wherein said calcium sulfate comprises hydrates thereof claim 2 , wherein the hydrate is selected from the group consisting of calcium sulfate hemihydrate having a formula of CaSO.(nHO) claim 2 , wherein n is equal to or greater than 0.5 and equal to or less than 0.8; and calcium sulfate dihydrate having a formula of CaSO.2HO.4. The composite core material of claim 1 , wherein the encapsulating resin is selected from the group consisting of polyester resins claim 1 , vinyl ester resins claim 1 , fire retardant resins and any combinations thereof.5. The composite core material of claim 4 , wherein the encapsulating resin is polyester resins.6. The composite core material of claim 4 , wherein the encapsulating resin is vinyl ester resins.7. The composite core material of claim 4 , wherein the encapsulating resin is fire retardant resins.8. A method to form a composite core material claim 4 , comprising:forming a mixture comprising mineral filler ...

Method and apparatus for determining the edge strength of plate-shaped elements made of brittle-fracture material

An improved measurement method and a corresponding measurement device are provided that measure the edge strength of plate-shaped elements made of brittle-fracture material. For this purpose, a long sample is drawn apart at the short edges, wherein the force transmission points lie next to the center of gravity of the base surface of the sample.

A METHOD FOR MEASURING DAMAGE PROGRESSION AND A SYSTEM FOR MEASURING DAMAGE PROGRESSION

PROBLEM TO BE SOLVED 1. A method for measuring the extent of damage progression inside or on one surface of an object to be measured based on the state of the other surface thereof upon pressure applied from one surface to the other surface thereof ,wherein when the pressure applied from one surface to the other surface is pressurized or depressurized, the extent of damage progression is measured by detecting the distance between two distorted sections formed by the damage on that other surface.2. A method for measuring the extent of damage progression according to claim h wherein the extent of damage progression is measured based on changes in the distance between two distorted sections.3. A method for measuring the extent of the damage progression according to claim 1 , wherein when the pressure applied from one surface to the other surface thereof is pressurized or depressurized claim 1 , a luminescent film containing light emitting particles is formed on the other surface claim 1 , receives strain energy and emits light with emission intensity corresponding to the magnitude of changes in strain energy density claim 1 , and the distance between two distorted sections is detected upon the distribution of emission intensity of the light radiated by the luminescent film.4. A method for measuring the extent of the damage progression according to claim 2 , wherein when the pressure applied from one surface to the other surface thereof is pressurized or depressurized claim 2 , a luminescent film containing light emitting particles is formed on the other surface claim 2 , receives strain energy and emits light with emission intensity corresponding to the magnitude of changes in strain energy density claim 2 , and the distance between two distorted sections is detected upon the distribution of emission intensity of the light radiated by the luminescent film.5. A method for measuring the extent of damage progression according to in which a moire fringe showing the state ...

APPARATUS AND METHOD FOR RAPID SCREENING OF MATERIAL PROPERTIES IN A PLURALITY OF ADDITIVELY MANUFACTURED TEST SPECIMENS

An apparatus and method for rapid screening of material properties in a plurality of additively manufactured test specimens. The apparatus includes a build plate having the plurality of additively manufactured test specimens disposed on a first substantially planar surface. The plurality of additively manufactured test specimens are coupled to at least one actuator to one of individually or simultaneously translationally displace each of the test specimens along an axis “z”, and perpendicular to the build plane of the build plate to test material properties of each of the plurality of additively manufactured test specimens. A sensor is coupled to each of the plurality of additively manufactured test specimens. Load vs. displacement data may be used to monitor the progression of monotonic and/or cyclic tests of the plurality of additively manufactured test specimens. 1. An apparatus for rapid screening of material properties in a plurality of additively manufactured test specimens , the apparatus comprising:a build plate having a body, a first substantially planar surface and an opposing second substantially planar surface, the first substantially planar surface defining a build plane;the plurality of additively manufactured test specimens disposed on the first substantially planar surface;at least one actuator, translationally displacing at least one of the plurality of additively manufactured test specimens along an axis to test material properties of at least one of the plurality of additively manufactured test specimens; anda plurality of sensors, wherein at least one of the plurality of sensors is coupled to a respective one of the plurality of additively manufactured test specimens.2. The apparatus of claim 1 , wherein the at least one actuator comprises a single actuator adapted to simultaneously claim 1 , translationally displace the plurality of additively manufactured test specimens along an axis “z” claim 1 , and perpendicular to the build plane of the ...

Determining strength of wood fiberboard

Wood-fiber insulation board is pressed to a uniform thickness and continuously advanced in a horizontal travel direction on a conveyor prior to subdivision into individual panels. The strength of the wood-fiber insulation board is determined by first pressing with an actuator a contact element downward at an actual pressure on a subregion of the advancing wood-fiber insulation board so as produce an actual deformation of the wood-fiber insulation board of between 1% to 7% of its thickness. Then a force sensor determines the actual pressure applied by the contact element to the board that produces the actual deformation and this the determined pressure and the actual deformation are transmitted to a central processor that extrapolates to a standardized deformation based on the determined pressure and actual deformation.

A TESTING SYSTEM WITH REAL-TIME COMPENSATION OF VARYING SYSTEM PARAMETERS

A test system for testing a specimen include (a) a set of actuators for applying a desired time history of load to a specimen, (b) a drive unit connected to each actuator, (c) power generating elements (current/pneumatic/hydraulic) and (d) a controller connected to the drive units, the controller generates a drive signal for the drive unit based on feedback received from output of the specimen and an error derived from the feedback and an input command. The controller generates the drive signal by compensating varying system parameters which are introduced due to nonlinear response of the test system and the specimen, wherein the controller does not require (i) additional measured variable other than a feedback received from the specimen and (ii) a numerical model of the test system and the specimen. 1. A test system for testing a specimen comprising:an actuator for applying a controlled desired load to a specimen;a drive unit connected to said actuator;a controller connected to said drive unit, wherein said controller generates a drive signal for said drive unit based on a feedback received from said specimen and an error derived between an input command and said feedback;wherein said controller generates said drive signal by compensating varying system parameters which are introduced due to nonlinear response of said test system and said specimen, and wherein said controller eliminates the need of (i) additional measured variables other than said feedback received from said specimen and (ii) a numerical or reference model of said test system and said specimen for compensating said varying system parameters.2. The test system of claim 1 , wherein said actuator comprisesa top actuator for applying said controlled desired loads on said specimen; anda bottom actuator for creating external disturbance by changing displacement of said specimen.3. The test system of claim 2 , wherein said top actuator is instrumented with both force and displacement sensors which are ...

System to Control an Actuator

The invention consists of a novel system and method for controlling an actuator, such as a linear actuator, used to control motion of an object, such as a tensile specimen or other component. The invention comprises applying a controllable smart material to an actuator, wherein the controllable smart material varies the resistance to the actuator motion; deforming or moving the object; sensing the objects current state; recording an associated data set comprising a plurality of parameters related to the objects state; comparing the current state of the object to the target state of the object; and altering the resistance to the actuator by deforming the smart material until the target state is reached. 1. A system for controlling an actuator used to control the motion of a tensile specimen , the system comprising:an actuator;a motor device for applying a load to the actuator and for producing movement in the actuator;a controllable smart material on and connected to the actuator that provides resistance to the actuator;a tensile specimen having a state capable of being changed by the actuator;a camera for detecting, reading, and monitoring the state of the tensile specimen;at least one real-time controller for changing the state of the controllable smart material and the tensile specimen, thereby resulting in deformation of the controllable smart material and the tensile specimen; anda data recorder connected to the camera and the at least one real-time controller for storing, analyzing, monitoring, and providing controllable smart material data.2. The system of claim 1 , wherein the actuator is linear or non-linear.3. The system of claim 1 , wherein the motor device creates movement in the actuator by electrical claim 1 , mechanical claim 1 , pneumatic claim 1 , gas claim 1 , hydraulic claim 1 , thermal claim 1 , magnetic claim 1 , optical claim 1 , or electromagnetic means claim 1 , or a combination thereof.4. The system of claim 1 , wherein the controllable smart ...

PNEUMATIC GRIP SYSTEMS AND MATERIAL TESTING SYSTEMS INCLUDING PNEUMATIC GRIP SYSTEMS

An example material testing system includes: a pneumatic grip configured to grip a specimen under test based on a supplied pressure; and a processor configured to control the pressure supplied to the pneumatic grip by repeatedly: controlling a fill valve to increase the supplied pressure; allowing the supplied pressure to stabilize after each increase; and adjusting a pressurization time based on comparing an expected pressure increase to an actual pressure increase during the pressurization. 1. A material testing system , comprising:a pneumatic grip configured to grip a specimen under test based on a supplied pressure; and controlling a fill valve to increase the supplied pressure;', 'allowing the supplied pressure to stabilize after each increase; and', 'adjusting a pressurization time based on comparing an expected pressure increase to an actual pressure increase during the pressurization., 'a processor configured to control the pressure supplied to the pneumatic grip by repeatedly2. The material test system as defined in claim 1 , wherein the pneumatic grip comprises a first grip and a second grip claim 1 , and the processor is configured to control the pressure supplied to the pneumatic grip by controlling the pressure to at least one of the first grip or the second grip.3. The material test system as defined in claim 2 , further comprising a second fill valve claim 2 , wherein the fill valve is configured to control gas flow from a gas supply to the second fill valve claim 2 , and the second fill valve is configured to control gas flow from the fill valve to the first grip.4. The material test system as defined in claim 3 , wherein the processor is configured to control the second fill valve to selectively increase pressure claim 3 , maintain pressure claim 3 , or relieve pressure via an exhaust.5. The material test system as defined in claim 3 , further comprising a third fill valve configured to control gas flow from the fill valve to the second grip.6. The ...

TIRE TESTING APPARATUS

A tire testing apparatus includes a tire supporting structure, a force applying device, a force measuring device and a controller. The tire supporting structure is configured to retain a tire. The force applying device is attached to the tire supporting structure and is configured to selectively apply a static force to the tire with the tire retained by the tire supporting structure. The force measuring device is attached to the tire supporting structure and is configured to measure the static force applied to the tire applied by the force applying device. The controller is electronically connected to the force applying device and the force measuring device. The controller is configured to receive force measurements from the force measuring device and selectively operate the force applying device to apply a predetermined level of static force to the tire for a predetermined period of time. 1. A tire testing apparatus , comprisinga tire supporting structure configured to retain a tire;a force applying device attached to the tire supporting structure configured to selectively apply a static force to the tire with the tire retained by the tire supporting structure;a force measuring device attached to the tire supporting structure configured to measure the static force applied to the tire applied by the force applying device; anda controller electronically connected to the force applying device and the force measuring device, the controller receiving force measurements from the force measuring device and selectively operating the force applying device to apply a predetermined level of static force to the tire for a predetermined period of time.2. The tire testing apparatus according to claim 1 , whereinthe tire supporting structure includes a base with a pair of upright beams and an axle extending between the pair of upright beams, with the tire installed to the axle between the pair of upright beams.3. The tire testing apparatus according to claim 2 , whereinthe tire ...

Applying triaxial stresses to a core sample during perforation and flow testing

Apparatuses and methods for applying triaxial stresses to a core sample during perforation and flow testing. A core sample of rock is positioned within a fixture shell of an overburden stress apparatus, which is placed within a pressure vessel. The pressure vessel applies a vessel pressure to the overburden stress apparatus. The overburden stress apparatus contains a plurality of stress members which apply overburden stresses to the core sample along its three principal axes. The applied overburden stresses are resisted by a combination of the structural integrity of the overburden stress apparatus and the circumferential support applied to the overburden stress apparatus by the vessel pressure. With the overburden stresses applied, the core sample can undergo perforation testing, production testing, and injection testing.

PLANAR TEST SYSTEM

An apparatus for applying a force to a specimen is provided. The apparatus comprises: an output rotatable member comprising a plurality of connection points; a plurality of rigid connection means, each comprising a first end and a second end, wherein the first end of each connection 1. An apparatus for applying a force to a specimen , the apparatus comprising:an output rotatable member comprising a plurality of connection points;a plurality of rigid connection means, each comprising a first end and a second end, wherein the first end of each connection means is pivotably coupled to one of the plurality of connection points of the output rotatable member;a plurality of guide members; anda plurality of specimen holders, each slidably mounted to one of the guide members and pivotably coupled to the second end of one of the plurality of connection means.2. The apparatus of further comprising a drive shaft coupled to the output rotatable member.3. The apparatus of further comprising an input rotatable member coupled to the drive shaft.4. The apparatus of claim 2 , further comprising a rigid drive member arranged to rotate the output rotatable member.5. The apparatus of claim 1 , wherein the output rotatable member is a disc.6. The apparatus of claim 1 , wherein there is a first number of connection points and a second number of rigid connection means claim 1 , and wherein the first number is greater than the second number.7. The apparatus of claim 6 , wherein the connection means are configured to be coupled to different connection points of the plurality of connection points in order to apply two or more different strain paths to a specimen.8. The apparatus of claim 1 , further comprising a rigid base plate.9. The apparatus of claim 8 , wherein the plurality of guide members are coupled to the base plate.10. The apparatus of claim 8 , wherein the base plate comprises a plurality of fixing points arranged to couple to the specimen holders.11. The apparatus of claim 1 , ...

TEST DEVICE, A TEST SYSTEM AND A METHOD FOR TESTING A MECHANICAL PRESSURE SENSOR

A test device () for testing a mechanical pressure sensor () is described. The Device () comprises a mechanical pressure dummy (), and an air chamber () having an elastic side section (), wherein an increasing of air pressure in the air chamber () causes the elastic side section () to bulge and to press the mechanical pressure dummy () in a test position (D′). 2. The test device according to claim 1 , wherein the bulging of the elastic side section goes in the same direction like a movement of the mechanical pressure dummy.3. The test device according to claim 1 , wherein the air chamber comprises an elevated edge so that pressing the elastic side section against the elevated edge makes an air-tight seal.4. The test device according to claim 1 , further comprisinga piston,wherein the mechanical pressure dummy is arranged at one piston end of the piston, and wherein the elastic side section is arranged at an opposite piston end of the piston.5. The test device according to claim 4 , wherein the piston is guidable by a piston guide so that the mechanical pressure dummy is moveable perpendicularly into the test position.6. The test device according to claim 5 , further comprisinga return spring,wherein the return spring is clamped between the piston and the piston guide so that the piston is held in an initial position when there is ambient air pressure in the air chamber.7. A test system for parallel testing a plurality of mechanical pressure sensors claim 5 , the test system comprises:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a plurality of test devices according to ,'}wherein the air chambers are coupled by air ducts so that there is a pressure balance between the air chambers.9. The test system according to claim 7 , wherein the bulging of the elastic side sections goes in the same direction like the movement of the mechanical pressure dummies.10. The test system according to claim 8 , wherein the air chambers comprise elevated edges so that pressing the ...

Same Time Domain Multi-Frequency Band Hydraulic Testing System and Control Method Therefor

A same-time-domain multi-frequency band hydraulic system, comprising a high-frequency data processing system, a control system, an executive system, a load, a static measuring system, and a dynamic measuring system, wherein the high-frequency data processing system processes the input command signals, data from the dynamic measuring system, and data from the static measuring system, and automatically generates, displays, and saves same-time-domain multi-frequency band test result data, wherein part of input signals are converted into input signals of the control system by the high-frequency data processing system and executed by the executive system, wherein the frequency response and measurement accuracy of the dynamic measuring system and the front-end data processing system meet the requirements of both the test and the hydraulic testing system. 1. A same-time-domain multi-frequency band hydraulic system , comprising a high-frequency data processing system , a control system , an executive system , a load , a static measuring system , and a dynamic measuring system , wherein said high-frequency data processing system processes the input command signals , data from said dynamic measuring system , and data from said static measuring system , and automatically generates , displays , and saves same-time-domain multi-frequency band test result data , wherein part of input signals are converted into input signals of said control system by said high-frequency data processing system and executed by said executive system , wherein the frequency response and measurement accuracy of said dynamic measuring system and said front-end data processing system meet the requirements of both the test and the hydraulic testing system.2. A control method utilizing same-time-domain multi-frequency band hydraulic system to conduct hydraulic test , comprising the following steps: (1) setting up the factor of the initial period for loading (k) of the hydraulic system and calculating the ...

PADEYE TESTER

A padeye tester is used for testing the condition of padeyes on underwater structures. The padeye tester has a frame having feet to engaged with an underwater structure, and a hook for engaging with a pad eye. The hook is moved under hydraulic pressure to provide a tensile force on the padeye, and the response to this tensile force indicates the padeye condition. 1. A padeye tester , the padeye tester having: a frame , the frame including engagement feet for engaging with an item; and a padeye engager , the padeye engager arranged to engage with a padeye fixed to the item; the padeye engager being arranged to move relative to the frame such that a tensile force can be applied to the padeye; the padeye tester having a control means whereby the degree of tensile force applied can be controlled.2. A padeye tester as claimed in claim 1 , wherein the padeye includes a gauge whereby any changes in the resistance to the applied force can be determined.3. A padeye tester as claimed in claim 1 , wherein the padeye engager is moved by means of hydraulic pressure.4. A padeye tester as claimed in claim 1 , wherein claim 1 , the frame is substantially V-shaped claim 1 , with engagement feet located on both a front leg and rear leg of the frame.5. A padeye tester as claimed in claim 4 , wherein the padeye engager be associated with a central portion of the frame claim 4 , located between the front leg and the rear leg.6. A padeye tester as claimed in claim 5 , wherein the padeye engager is coupled to a hydraulic cylinder located atop the central portion of the frame. The present invention relates to the testing of padeyes on subsea structures and equipment, and components thereof.Subsea structures, such as those used in the oil-and-gas industries, may be positioned deep below the ocean surface, and may stay in this position for many years. Nonetheless, it may be necessary to ultimately recover the subsea structure, or components thereof, and to return it to the surface.When the ...

Apparatus and method for evaluating film adhesion

An apparatus and a method for evaluating film adhesion are disclosed. The film is disposed on a first substrate, a side of the first substrate provided with the film is attached to a second substrate, and the film is divided into units. The apparatus includes an evaluation machine, which includes an upper fixing mechanism and a lower fixing mechanism disposed opposite to each other, the second substrate is detachably fixed on the upper fixing mechanism, and a side of the first substrate not provided with the film is detachably fixed on the lower fixing mechanism. The evaluation machine further includes a force application device, which is configured to apply an external force to the upper fixing mechanism and/or the lower fixing mechanism, so that the upper fixing mechanism and the lower fixing mechanism generate relative movement away from each other.

DEVICE, SYSTEM AND METHOD FOR TRIAXIAL COMPRESSION TEST WITH/WITHOUT JACKET BY GAS CONFINING PRESSURE ON ROCK

The present invention discloses a device, system and method triaxial compression test with/without jacket by gas confining pressure on rock, and belongs to the technical field of rock mechanics tests. The device includes a container, wherein an accommodating cavity is disposed in the container for placing a core sample, a first through hole and a second through hole are respectively disposed at an upper end of the container, the first through hole is used for penetration of an end cap for loading an axial pressure to the core sample, the second through hole is used for injecting a gas into the accommodating cavity so as to apply a gas confining pressure on the core sample, a third through hole is disposed at a lower end of a side wall of the container, and the third through hole is used for communicating the accommodating cavity with the triaxial cell so as to achieve pressure transfer and balance between the accommodating cavity and the triaxial cell. During application, the device is installed in the triaxial cell. The container is inflated by a gas inlet and outlet of the triaxial cell and a communicating tube, the internal pressure applied by a high pressure gas on a near field rock wall of a salt cave can be accurately simulated, and a triaxial compression test with/without jacket by gas confining pressure on rock is conducted. 1. A device for triaxial compression test with/without jacket by gas confining pressure on rock , applied for a system for triaxial compression test with/without jacket by gas confining pressure on rock , wherein the system further comprises a triaxial cell , and the device comprises a container , and wherein ,an accommodating cavity is disposed within the container for placing a core sample;a first through hole and a second through hole are respectively disposed at an upper end of the container, the first through hole is for an end cap for loading an axial pressure on the core sample to penetrate through, and the second through hole is ...

TENSILE TESTING MACHINE AND CONTROL METHOD OF TENSILE TESTING MACHINE

A high-speed tensile testing machine conducts a tensile test on a test piece by applying a test force to the test piece. The high-speed tensile testing machine includes a detection unit configured to detect a test period indicating a time from when the test piece starts to deform under action of the test force to when the test piece breaks, and a determination unit configured to determine validity of a test result of the tensile test, on the basis of the test period and natural vibration of the high-speed tensile testing machine. Specifically, in the case where the test period is a predetermined multiple or more of a specific cycle indicating a cycle of the natural vibration of the high-speed tensile testing machine, the determination unit determines that the test result of the tensile test is valid. 1. A tensile testing machine for conducting a tensile test on a test piece by applying a load to the test piece , the tensile testing machine comprising:a detection unit configured to detect a test period indicating a time from start to end of the tensile test; anda determination unit configured to determine validity of a test result of the tensile test, on a basis of the test period and natural vibration of the tensile testing machine.2. The tensile testing machine according to claim 1 , wherein claim 1 ,in a case where a frequency spectrum indicating the natural vibration of the tensile testing machine includes a plurality of peaks,a frequency of a peak, an intensity of which is equal to or greater than a predetermined intensity, among the plurality of peaks is used as a frequency of the natural vibration.3. The tensile testing machine according to claim 2 , wherein claim 2 ,in a case where the frequency spectrum includes a plurality of peaks, intensities of which are equal to or greater than the predetermined intensity,a frequency of a peak with a smallest frequency among the plurality of peaks, the intensities of which are equal to or greater than the predetermined ...

DEVICES AND METHODS FOR HOLDING A SAMPLE FOR MULTI-AXIAL TESTING

Methods and devices are disclosed for tracking site-specific microstructure evolutions and local mechanical fields in metallic samples deformed along biaxial strain paths. The method is based on interrupted bulge tests carried out with a custom sample holder adapted for SEM-based analytical measurements. Embodiments include elliptical dies used to generate proportional and complex strain paths in material samples. One example holding device includes a base having a floor and walls that extend to form a chamber for a sample, the floor having apertures for receiving a pressure-supplying fluid, a cover having an opening and configured such that the cover and base can be coupled together to tightly clamp a sample in the chamber, and washers disposed between the base and the cover, each washer having openings extending therethrough change at least one of a shape and a size of the opening formed in the cover. 1. A device for holding a sample , comprising:a base having a floor and one or more walls that extend above the floor to form a receiving chamber for receiving a sample, the floor having one or more apertures extending therethrough for receiving a pressure-supplying fluid;a cover having a configuration that is complementary to at least a portion of the base such that the cover and base can be coupled together to tightly clamp a sample disposed in the receiving chamber, the cover having an opening extending therethrough; andone or more washers configured to be disposed between the base and the cover when the base and the cover are coupled together, each washer of the one or more washers having one or more openings extending therethrough that are configured to change at least one of a shape and a size of the opening formed in the cover.2. The device of claim 1 , further comprising one or more seals associated with the base claim 1 , the one or more seals being configured to prevent device leakage when a pressure-supplying fluid is supplied to the one or more apertures. ...

Second-generation in-situ test device for strength of shallow water sediment

The present invention discloses a second-generation in-situ test device for strength of a shallow water sediment, including a workboat and a static cone penetration test unit carried by the workboat, where the static cone penetration unit includes a mounting frame, a penetration unit, a control cabin and a hydraulic unit; the penetration unit and the hydraulic unit are both electrically connected to the control cabin. In this solution, the workboat is used to carry the test equipment, and the static cone penetration test unit is carried on the workboat with a special structure. Based on a double-cable lifting frame, the equipment is launched and recovered through a moon pool in the center of a hull. This significantly improves the efficiency and safety of the sediment strength test operation in a shallow water environment.

Crushing system for large-size natural gas hydrate rock samples

A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.

Apparatus and method for attaching a sleeve to a wire end

Apparatus for attaching a sleeve comprising a coupling end to a steel wire. The apparatus comprises a pulling end arranged to connect to a sleeve to be attached to a steel wire, a pulling arrangement connected to the pulling end and being configured to pull a sleeve connected to the pulling end, a swaging arrangement comprising two opposed swaging rolls adapted to crimp the sleeve to a close press fit around a loose end of a steel wire. The apparatus further comprises a testing arrangement for testing the strain capacity of the attachment of a sleeve to a steel wire, the testing arrangement including a holding unit configured to effectively hold a portion of the steel wire fixed and allowing the pulling arrangement to pull the sleeve attached to a wire held fixed in the holding unit in order to verify the attachment.

Integral Clamping Steel Strand Drawing Test Apparatus, And Method For Using Same

Disclosed are an integral clamping steel strand drawing test apparatus, and a method for using same, wherein same are suitable for use in a steel strand mechanical property test. The apparatus comprises a rectangular lower base () and a rectangular upper base (), with a hydraulic telescopic mechanism being provided between the lower base () and the upper base (), the hydraulic telescopic mechanism being provided with an integral clamping mechanism, a steel strand test piece () to be tested being provided in the integral clamping mechanism, the steel strand test piece () to be tested being provided with a plurality of binding protective devices (), and a safety protection door () being provided outside the hydraulic telescopic mechanism. During a steel strand drawing test, the property of a steel strand itself is fully brought into play, and the integrity of the steel strand test piece () is maintained, thereby being able to accurately reflect various mechanical properties of the drawn steel strand while preventing damage to the device and injuring an operator caused by a fracture in a single strand or a plurality of strands of the steel strand during the test. The device is simple and easy to operate, and has good practicability and promotional and application value. 1. An integrally clamped steel strand drawing test apparatus , comprising:a rectangular bottom seat and a rectangular top seat, a hydraulic telescopic mechanism is disposed between the bottom seat and the top seat, an integral holding mechanism is disposed on the hydraulic telescopic mechanism, a steel strand sample to be tested is disposed in the integral holding mechanism, a plurality of restraining protection apparatuses are disposed on the steel strand sample to be tested, and a safety protection door is disposed outside the hydraulic expansion mechanism;the hydraulic telescopic mechanism comprises four hydraulic cylinders interconnected with four corners of the bottom seat and the top seat;the ...

Triaxial high temperature and high pressure rock mechanics load test platform

A triaxial high temperature and high pressure rock mechanics load test platform includes a base, a lifting seat, and an intermediate connecting seat arranged between the base and the lifting seat. A hydraulic assembly is arranged between the base and the intermediate connecting seat; the intermediate connecting seat is connected with the lifting seat by means of a group of connecting rods; the lifting seat is enclosed by a side wall and a base plate to form a receiving groove with an upward opening; and a limiting device is arranged on the side wall of the lifting seat for preventing an MTS triaxial force sensor from disengaging from a support disk.

Experimental method for indoor real-time dynamic monitoring of hydraulic fracture width

An experimental method for indoor real-time dynamic monitoring of a hydraulic fracture width, comprising the steps of: test piece preparation: assembling a prefabricating mold and fixing a fiber grating therein; mounting a simulated wellbore in the prefabricating mold, pouring agitated cement mortar into the prefabricating mold, and the cement mortar is solidified to form a test piece; mounting the test piece into a confining pressure chamber of a true triaxial hydraulic fracturing simulation device, connecting a liquid injection line to the true triaxial hydraulic fracturing simulation device, and connecting the fiber grating to a modem that is connected to a computer; hydraulic fracture width monitoring test: injecting liquid into the confining pressure chamber of the true triaxial hydraulic fracturing simulation device through the liquid injection line to apply three-direction confining pressures to the test piece, injecting liquid into the simulated wellbore, and starting the fiber grating and the modem to dynamically monitor the hydraulic fracture width in the test piece; and when a hydraulic fracture inside the test piece reaches an outer surface of the test piece, ending the test.

In-situ solid rocket motor propellant grain aging using gas

A method for non-destructively determining a mechanical property of a solid rocket motor propellant grain may comprise applying, via a gas, a force to a surface of the solid rocket motor propellant grain, wherein a deformation is formed on the surface of the solid rocket motor propellant grain in response to the applying, and measuring a pressure of the gas. This process may be performed over time to determine a lifespan of the propellant grain.

Testing device and method for simulating the flowback in the shut-in period of fractured wells

The invention discloses a testing device and method for simulating the flowback in the shut-in period of fractured wells, comprising a fracturing fluid tank, a flowback fracturing fluid tank, a hydraulic fracturing pump, a flowback fluid collection beaker, and a shut-in flowback testing system; the shut-in flowback testing system is composed of a box body and an acoustic wave testing device, a temperature control device, a fracturing string and a square rock block arranged in the box body; a stress loading plate and a hydraulic block are successively arranged between the four surfaces of the square rock block and the inner walls of the box body; the acoustic wave testing device consists of an acoustic wave transmitting probe and an acoustic wave receiving probe; the four outer surfaces of the box body are provided with hydraulic tanks. 1. A testing device for simulating the flowback in the shut-in period of fractured wells , comprising a fracturing fluid tank , a flowback fracturing fluid tank , a hydraulic fracturing pump , a flowback fluid collection beaker , and a shut-in flowback testing system;The shut-in flowback testing system is composed of a box body and an acoustic wave testing device, a temperature control device, a fracturing string and a square rock block arranged in the box body;A stress loading plate and a hydraulic block are successively arranged between the four surfaces of the square rock block and the inner walls of the box body;The acoustic wave testing device consists of an acoustic wave transmitting probe and an acoustic wave receiving probe, the acoustic wave transmitting probe is embedded in one stress loading plate, and the acoustic wave receiving probe is embedded in the other two stress loading plates;The four outer surfaces of the box body are provided with hydraulic tanks, and the hydraulic tank contains hydraulic fluid which can be injected into the hydraulic block;A hole is made on the fracturing string, one end of which is located in ...

REAL TIME ON LOCATION CRUSH AND CONDUCTIVITY TESTING

A method for real time crush testing of proppants including loading proppant into an apparatus comprising: a body with a chamber to accept a piston and proppant; a pressure piston; a pressure transducer located in the bottom of the chamber; and a displacement sensor; compressing the proppant with the pressure; calculating the amount of proppant material in the proppant pack; increasing pressure on the proppant pack until the sample is crushed; calculating proppant strength from at least the displacement sensor data. An apparatus includes a body with a chamber to accept a piston and proppant; a pressure piston; a pressure transducer located in the bottom of the chamber; and a displacement sensor. 1. A method for real time crush testing of proppants , the method comprising: a body with a chamber configured to accept a pressure piston and proppant;', 'a pressure piston configured to slide in said chamber such that proppant may be at least one of: loaded into the chamber, crushed in the chamber, emptied from the chamber, and combinations thereof;', 'a pressure transducer located in the bottom of the chamber; and', 'a displacement sensor located in a position to measure the linear displacement of the pressure piston;, 'loading proppant into an apparatus comprisingcompressing the proppant with the pressure piston to a pressure resulting in a proppant pack;calculating the amount of proppant material in the proppant pack;increasing pressure on the proppant pack until the sample is crushed; andcalculating proppant strength from at least the displacement sensor data.2. The method of claim 1 , further comprising a channel in the body configured to load proppant from a proppant supply into to the chamber wherein the loading of the proppant into the chamber comprises lifting the pressure piston to a top position above the channel for a period of time until the desired amount of proppant has been loaded into the chamber.3. The method of claim 1 , further comprising:a slot in the ...

WATER JET PEENING COMPRESSIVE RESIDUAL STRESS TEST METHOD, TEST DEVICE, AND TEST FACILITY

A plastically deformable almen strip is held under a predetermined underwater environment in which water jet peening is carried out, and a result of providing compressive residual stress in the water jet peening is confirmed by jetting water jet to the almen strip. 1. A water jet peening compressive residual stress test method comprising:holding a plastically deformable almen strip under a predetermined underwater environment; andjetting water jet to the almen strip.2. The water jet peening compressive residual stress test method according to claim 1 , comprising:providing the underwater environment by putting water in a sealed water tank and pressurizing the sealed water tank;holding the almen strip under the underwater environment; andjetting the water jet to the almen strip.3. A water jet peening compressive residual stress test device comprising:a jet port mounting portion to which a jet port is mounted, the jet port jetting water jet;a high-pressure water pipe mounting portion provided communicating into the jet port mounting portion, and to which a high-pressure water supply pipe is mounted, the high-pressure water supply pipe supplying high-pressure water; andan almen strip holding portion including a support surface facing the jet port mounting portion, and an attaching portion configured to allow a plate surface of a plastically deformable plate-like almen strip to be in contact with and attached to the support surface.4. The water jet peening compressive residual stress test device according to claim 3 , whereinthe attaching portion includesa pressing member including a through hole through which a portion of the almen strip is let out, the portion being jetted the water jet, and a pressing surface configured to abut on an outer edge of the almen strip, anda fixing member configured to fix the pressing member to sandwich the almen strip between the pressing surface of the pressing member and the support surface.5. The water jet peening compressive residual ...

Multifunctional true triaxial rock drilling test system and method

A multifunctional true triaxial rock drilling test system and method; rock cores are respectively taken from a plurality of drilling holes on the same test piece, uniaxial test and triaxial test are respectively performed on these rock cores to obtain multiple groups of mechanical property parameters, multiple groups of drilling parameters are obtained according to a multifunctional true triaxial rock drilling tester that can directly measure the drilling parameters, relational expression between mechanical property parameters of rock mass and the drilling parameters is established, and mechanical property parameters of rock mass can be obtained just by detecting the drilling parameters of the rock mass through the relational expression. The multifunctional true triaxial rock drilling tester is preset test device, has function of performing triaxial loading on the test piece, and can simulate drilling process of drilling rig in a three-way confining pressure state in underground engineering of the test piece.

一种弹簧测力仪及操作方法

本发明公开了一种弹簧测力仪及操作方法，其结构包括支脚、显示器、机体、稳固杆、移动板、测力杆、稳固平衡装置，支脚共设有个，并且水平安装于机体的下表面，显示器水平嵌入安装于机体的前表面，稳固杆垂直安装于机体的上表面，移动板通过滑槽与稳固杆滑动连接，由个平衡轴承平均分摊消耗掉，使得侧面倾斜的力得到缓解，再通过内平衡环上的稳固平衡杆接受竖直方向的歪斜的力，由主动轴承将竖直方向歪斜的力去除，由平衡机构消除不平衡的力，通过稳固平衡装置使得安装稳固防止被测弹簧飞出，击伤人员，同时也防止测量弹簧歪斜造成弹簧测力不准确。

Method and device for testing of tubes

FIELD: machine building. ^ SUBSTANCE: method involves cutting from the circular area of one or more tubes of the type used for the construction of pipelines, forming almost flat parallel surfaces at the ends of the annular area, provision of equipment for measuring strain and deformation of the annular area; installation of the annular area in a high-pressure chamber in such a way that its ends shaped pads with opposite sides of the chamber to isolate the interior of the annular area from the influence from outside, increasing the pressure outside the annular area, so that pressure can affect only the outer surface of the annular area, and measure its tension and strain with increasing pressure, and use of the results of measurements of deformation and strain to determine the wall thickness of pipes to be used for the construction of the pipeline. The device comprises the first and second sections of the testing chamber which, when placed together, form a test chamber to contain the section of the annular area tested, one or more sensors for measuring strain and deformation of the annular area; sealing means placed in the chamber to create a spacer on the edges of the annular area set in the chamber; means for fastening the first and second sections together to form a chamber and adhesion of sealant means with the annular area, set in the chamber to create a spacer for counter pressure between the inner and outer parts of the annular area, and the inlet for fluid in one section of the chamber to enable supply of pressurised fluid into the chamber outside the annular area, installed in the chamber. ^ EFFECT: provision of reproducibility of the impact of external pressures that can destroy the long-distance pipelines, and ease of planning and execution. ^ 16 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 456 540 (13) C2 (51) МПК G01B 5/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009138434/28, ...

吸能锚索拉伸试验夹具、设备及方法

本发明提供了一种吸能锚索拉伸试验夹具、设备及方法，包括：两个对称设置的夹紧件，所述夹紧件的一侧面为具有设定角度的倾斜面，与倾斜面相对的侧面上设有若干个限位结构；两个夹紧件的限位结构配合形成若干个容置空间，容置空间用于传动或定位并卡紧试件；不仅避免了试件与夹具之间的滑移，提高了夹具使用寿命，降低了成本，而且能够还原现场锚索拉伸的真实过程，增加了试验精确性，可以保证加载轴线的对中性以及标距变形的单向性，提高实验结果的精确性，还可以适用于不同尺寸的锚索或锁具。

一种钢塑格栅拉伸检测装置

一种钢塑格栅拉伸检测装置，属于材料检测领域。为解决测试格栅试样抗拉伸、抗磨损和抗剪切问题，本发明提供了一种钢塑格栅拉伸检测装置；包括工作台，所述工作台上设有左工作区和右工作区，所述工作台上左工作区设有轨道和轨道后侧的拉伸装置，所述轨道上安装有检测装置，所述检测装置包括外壳，所述外壳内设有固定格栅试样的夹持装置、可拆卸的检测辊和导向辊，所述导向辊设在夹持装置与检测辊之间，所述外壳前侧设有拉伸杆，所述外壳侧面设有滑动轮，所述滑动轮安装在轨道上，所述外壳上侧还设有剪力测试装置；实现了同一装置中格栅试样的抗拉伸、抗磨损和抗剪切测试项目，简化了测试结构，操作更加方便。

一种斜面单向加载车辙试验装置

本发明公开一种斜面单向加载车辙试验装置，加载架在其上部位置通过加载架旋转组件与机架的上横梁滑动连接，其下部嵌装变速电机和碾轮；变速电机与碾轮传动连接，实现碾轮对试件单向连续加载；承载架在其下部位置通过承载架旋转组件与机架的下横梁滑动连接，其上部从上至下依次嵌装试件安装架和高度调节装置；试件安装架通过高度调节装置进行高度调节；控温箱将机架封闭式包裹，用于试验环境温度的调控。效果：实现试件的斜向布置、碾轮采用充气胶轮单向连续加载且碾轮的行走速度和接触压的大小可调，解决了现有车辙试验仪不能对在车辆上下坡时、不同车速以及不同坡度路面的车辙破坏进行模拟且模拟不能真实反映车轮对行车道路面实际作用的情况。

一种快速检测金属材料元件弹性衰减的装置及检测方法

一种快速检测金属材料元件弹性衰减的装置，包括试验机支撑部分、试验机液压驱动装置、金属材料元件夹持部分、加热保温及控温部分和金属材料元件弹性衰减的测量部分，需要测试高温金属材料元件时即可安装加热、保温及控温部分，测试方法包括金属材料元件工作压力和变形量的确定、金属材料元件安装在试验装备上、数据记录、数据处理、金属材料元件寿命的预测五个步骤。本发明的优点是：该方法可测试不同使用温度的金属材料元件的弹性松弛情况，满足金属材料元件的各种使用工况；该方法可在24～48小时时间内预测五年、十年甚至几十年以后金属材料元件的工作情况，特别适用于工厂对批量金属材料元件产品的弹性性能的检测和寿命的预测。

一种用于激光动加载实验的微型靶加热装置及其使用方法

本发明公开了一种用于激光动加载实验的微型靶加热装置，该装置包括靶托、靶体、加热元件、测温元件和控温装置，加热元件、测温元件均与控温装置电联接，在靶托上设有三个夹持槽，中间位置的夹持槽中夹持有测温元件，两侧的夹持槽中夹持有加热元件，靶托背面敷设有靶体，所述靶体内切圆的直径大于观测通孔的直径，在靶体外侧有用于固定靶的定位压片。本发明加热装置是一种可以用于加热微型靶体的装置，该装置能在5分钟内将靶体从初始状态(300K)加热到预设的温度(最高1000K)，并且通过AI‑519型人工智能调节器在实验期间能稳定的控制温度，温度的控制精度达到2K，该装置能用于研究温度对激光冲击加载条件下的材料损伤与断裂特性。

A Load-testing Apparatus for Connecting-Pin

본 발명은 각종 산업설비나 장치 중 하중을 지탱하는 연결핀의 파손 여부를 확인할 수 있는 연결핀 하중 시험장치에 관한 것으로, 이를 위해 프레임과, 상기 프레임에 고정되어 연결핀의 양단을 지지하는 지지수단과, 상기 연결핀을 당겨 반복 하중을 가하는 유압가력기를 포함하여 이루어지되, 상기 유압가력기의 단부에는 상기 연결핀에 반복하중을 가하기 위한 하중부하 어셈블리가 연결되는 것을 특징으로 한다. 유압가력기, 시험, 피로하중, 프레임, 연결핀

A kind of angle steel X-braced panels stability bearing capacity experimental rig and method

本发明公开了一种角钢交叉斜材稳定承载力试验装置，涉及供电试验装置领域，包括两间隔设置的固定结构；分别铰接于一固定结构上的第一支撑主材和第二支撑主材；拉压力测量组件，其包括高度可调且固定设置并用于测量水平千斤顶压力或拉力的压力传感器；固定设置的水平液压千斤顶；电子位移计，用于测量第一支撑主材和第二支撑主材远离所述固定结构一端的位移。本发明的角钢交叉斜材稳定承载力试验装置可考虑另一杆的扭转刚度对目标压杆的约束作用，提供了较现有试验装置能更合理的检测角钢构件的弯扭失稳的载荷数据及获得更准确的稳定承载力计算值的装置平台。

Measuring Cement Properties

A cement sample testing apparatus including a first pressure zone; a second pressure zone; and a pressure control system. The pressure control system can be in fluid communication with the first pressure zone and the second pressure zone, operable to raise the first pressure zone to a first pressure above ambient pressure, and operable to raise the second pressure zone to a second pressure above ambient pressure. A method for determining mechanical properties for a sample cement composition can include applying a first pressure condition to a first portion of the sample cement composition; applying a second pressure condition raised to a second portion of the sample cement composition; and determining one or more mechanical properties of the sample cement composition based at least in part on the pressure conditions present at the failure of the sample cement composition.

Cement testing

Systems and methods provide for testing a cement by measuring both axial shrinkage/expansion and radial shrinkage/expansion of a sample.

Measuring cement properties

A cement sample testing apparatus including a first pressure zone; a second pressure zone; and a pressure control system. The pressure control system can be in fluid communication with the first pressure zone and the second pressure zone, operable to raise the first pressure zone to a first pressure above ambient pressure, and operable to raise the second pressure zone to a second pressure above ambient pressure. A method for determining mechanical properties for a sample cement composition can include applying a first pressure condition to a first portion of the sample cement composition; applying a second pressure condition raised to a second portion of the sample cement composition; and determining one or more mechanical properties of the sample cement composition based at least in part on the pressure conditions present at the failure of the sample cement composition.

Lateral load tester of wheel-set for railway vechicle

본 발명은, 철도차량의 주행안전성을 측정하기 위해 사용되는 시험용 윤축을 제작하기 위한 철도차량의 윤축 수평하중 시험장치에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelset horizontal load test apparatus for a railroad car for producing a test wheelset used for measuring the running safety of a railroad car. 본 발명은, 레버를 상하로 동작함에 의해 유압을 작동시키는 유압펌프와 유압펌프의 유압공급에 따라 피스톤이 동작하는 유압실린더에 연결되어 구성되는 유압장치에 있어서, 유압실린더를 형성하는 본체부와 상기 유압실린더의 일측 단부에 형성된 포켓부와, 상기 포켓부 내부에 설치된 로드셀과, 상기 본체부의 길이 방향으로 지지부재가 결합 구성되고, 로드셀은 하중을 측정하기 위한 데이터처리기가 설치되며, 상기 로드셀과 유압실린더가 접촉하는 차륜 플랜지 상부에 지그가 더 설치되고, 상기 본체부와 지지부재는 결합수단에 의해 결합되어져 있다. The present invention relates to a hydraulic device configured to be connected to a hydraulic pump for operating hydraulic pressure by operating a lever up and down, and a hydraulic cylinder for operating a piston according to the hydraulic supply of the hydraulic pump. A pocket part formed at one end of the hydraulic cylinder, a load cell installed inside the pocket part, and a supporting member are configured to be coupled in the longitudinal direction of the main body part, and the load cell is provided with a data processor for measuring a load. A jig is further provided on the top of the wheel flange that the cylinder contacts, and the main body portion and the support member are coupled by a coupling means.

Determining bond strength of materials used in wellbore operations

Described herein are methods and apparatus for testing bond strength of a chemical-sealant, lost circulation material to a subterranean sample. An apparatus can include a body defining walls of a chamber to receive a subterranean core sample from a wellbore, the body being sized to receive a chemical-sealant lost-circulation material (CS-LCM) to an area of the chamber between the core sample and the body, and a removable insert mateable to the body, the insert defining a base of the chamber, where the test apparatus is positionable to transfer a force to the core sample to decouple the core sample from the CS-LCM such that a shear bond strength of the CS-LCM to the core sample is determinable based on a maximum amount of force used to decouple the core sample from the CS-LCM.

Control system and method for carrying out hoisting device hoisting tests for vehicles

FIELD: transportation. SUBSTANCE: invention can be used for carrying out tests under load of elevator hoist for vehicles. Essence of the invention consists in the fact that the check-up system and the method for testing under load of the hoisting device of the hoist for vehicles contain a base, on the base there is a support bracket configured to install the lifting device to be tested; support bracket is provided with loading device for application of force, causing load, to the lifting device to be tested; loading device is electrically connected to the control device, which can control the pressure applied by the loading device, according to the specified value. EFFECT: technical result is possibility of simplifying tests and increasing accuracy. 15 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 690 056 C1 (51) МПК G01M 7/06 (2006.01) G01N 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01M 7/06 (2019.02); G01N 3/10 (2019.02) (21)(22) Заявка: 2018125261, 15.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 30.05.2019 30.03.2017 CN 201710202439.6 (45) Опубликовано: 30.05.2019 Бюл. № 16 (73) Патентообладатель(и): СиЭрЭрСи ЦИНДАО СЫФАН РОЛЛИН СТОК РИСЁРЧ ИНСТИТЬЮТ КО., ЛТД. (CN) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.07.2018 (86) Заявка PCT: (56) Список документов, цитированных в отчете о поиске: RU 2360220 C2, 27.06.2009. SU 2 6 9 0 0 5 6 R U (87) Публикация заявки PCT: 106098 A1, 01.01.1957. US 6912916 B1, 05.07.2005. CN 102235943 A, 09.11.2011. WO 2018/024009 (08.02.2018) Адрес для переписки: 123242, Москва, пл. Кудринская, д. 1, а/я 35, "Михайлюк, Сороколат и партнеры патентные поверенные" (54) СИСТЕМА И СПОСОБ КОНТРОЛЯ ДЛЯ ОСУЩЕСТВЛЕНИЯ ИСПЫТАНИЙ ПОД НАГРУЗКОЙ ПОДЪЕМНОГО УСТРОЙСТВА ПОДЪЕМНИКА ДЛЯ ТРАНСПОРТНЫХ СРЕДСТВ (57) Реферат: Использование: для осуществления испытаний нагрузочным устройством для приложения под нагрузкой подъемного ...

Engine shift fork spring dynamometer

本发明公开了起动机拨叉弹簧测力仪，其结构包括支脚、显示器、机体、稳固杆、移动板、测力杆、稳固平衡装置，支脚共设有个，并且水平安装于机体的下表面，显示器水平嵌入安装于机体的前表面，稳固杆垂直安装于机体的上表面，移动板通过滑槽与稳固杆滑动连接，由个平衡轴承平均分摊消耗掉，使得侧面倾斜的力得到缓解，再通过内平衡环上的稳固平衡杆接受竖直方向的歪斜的力，由主动轴承将竖直方向歪斜的力去除，由平衡机构消除不平衡的力，通过稳固平衡装置使得安装稳固防止被测弹簧飞出，击伤人员，同时也防止测量弹簧歪斜造成弹簧测力不准确。

Method to check ceramic spherical heads for hip prostheses

FIELD: medicine. SUBSTANCE: method to check the strength of conical input of the ceramic modular spherical heads for hip prostheses, having a reception space with a conical side surface with the clamping cone angle γ and a conical input includes pressure application to the receiving volume portions. The radial force directed perpendicular to the longitudinal axis of the spherical head affects only the conical input area. A device to implement the above method includes a supporting bearing, a conical bushing and a punch. They are all located on one common longitudinal axis. The bushing and the punch are adapted to shear along the longitudinal axis. The bushing is placed between the punch and the supporting bearing. The span angle of the cone α is greater than the span angle of the clamping cone γ of the spherical head subject to inspection. EFFECT: invention provides the readiness of all inspected spherical heads to work without damage, as well as under biased load in vivo. 10 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 628 654 C2 (51) МПК A61F 2/36 (2006.01) A61F 2/46 (2006.01) G01N 3/08 (2006.01) G01N 3/10 (2006.01) A61F 2/76 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2014137184, 13.02.2013 (24) Дата начала отсчета срока действия патента: 13.02.2013 Дата регистрации: (72) Автор(ы): ФЛОР Маркус (DE), УПМАНН Карстен (DE), БЕРТМАРИНГ Хендрик (DE) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: WO2009068234 A1, 04.06.2009. RU 16.02.2012 DE 102012202372.0 (45) Опубликовано: 21.08.2017 Бюл. № 24 2181600C2, 27.04.2002. US2008262626 A1, 23.10.2008. USRE37964 E, 07.01.2003. DE4411508 A1, 10.05.1995. JP2007307011 A, 29.11.2007. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.09.2014 (86) Заявка PCT: EP 2013/052890 (13.02.2013) (87) Публикация заявки PCT: 2 6 2 8 6 5 4 (43) Дата публикации заявки: 10.04.2016 Бюл. № 10 R U (73) ...

A kind of device and method for aviation conduit tube component stress corrosion (cracking) test

一种用于航空导管组件应力腐蚀试验的装置和方法，其装置包括由装有预加热管和热电偶的预加热容器构成的液态腐蚀介质预加热装置和由液压和安装应力施加装置、数据采集与控制系统及装有恒温加热管和热电偶的应力腐蚀容器构成的应力腐蚀装置；其中液压和安装应力施加装置由液压油充加装置和可同时安装多个试件的夹具组成；应力腐蚀容器和预加热容器通过连接管和循环泵构成循环回路。该装置可模拟航空导管组件在内部油压和外部安装应力联合作用下发生的应力腐蚀；通过液态和气态腐蚀介质相互转换、同一夹具安装多个试件、试验过程中试件不与室内空气接触等达到省时省力、提高工作效率和试验结果准确性的目的。

Horizontal concrete uniaxial tensile test device and use method thereof

本发明公开了一种卧式混凝土单轴拉伸试验装置及其使用方法，包括下压件，下压件的上端与试验机上压板连接，基座设置在工作台上；两个试件夹持件水平滑动设置在基座上，且对称设置在基座两端；下压件通过传动齿轮与两个试件夹持件连接，混凝土试件水平设置在两个试件夹持件之间，每个试件夹持件中设置有夹持空间，混凝土试件的两端分别配合夹持在两个试件夹持件的夹持空间中；本发明通过将混凝土试件水平设置在两个夹持件之间，试验机驱动下压件向下移动时，带动两个试件夹持件对混凝土试件产生水平方向的轴向拉伸力，避免了混凝土试件在拉伸过程产生的偏心，提高了拉伸试验结果的准确性；混凝土试件水平安装不受高度限制，有效节约了试验空间。

Device for testing the mechanical compressive strength of tablet-shaped test objects

A kind of flexible connecting member testboard

本发明提供一种柔性连接件测试台，由底座、侧板、复合连接架、高度调整垫片、加载液压缸及其支座等组成。一侧板，安装于侧板底部的底座。侧板、底座上分别安装有一组液压缸，并均与压力传感器相连。安装在底座上的液压缸用于对柔性连接件进行拉压载荷加载，安装在侧板上的液压缸与复合连接架相连，用于对柔性连接件进行弯矩加载，从而实现对柔性连接件的拉、弯及复合测试为方便调整测试台旋转轴心，提高测试精准度，在竖直液压缸下方安装有若干高度调整垫片。本发明可以实现柔性连接件的大负荷大角度的拉、弯及复合测试，模拟不同工况对柔性连接件的影响，并且精度高、结构紧凑、操作简单、加载范围大。

A kind of conducting wire drawing force detector

本发明公开了一种导线拉拔力检测装置，包括底座板，底座板上设置有固定机构，固定机构包括一号固定槽，一号固定槽与底座板固定连接，一号固定槽内设置有若干L型固定板，L型固定板一侧固定连接有若干一号弹簧，一号弹簧固定安装在一号固定槽的内壁上，本发明通过设置有固定机构，能够将需要检测的导线以及装置固定在固定机构的一号固定槽，将导线的另一端与挂钩固定连接，在通过导向机构将弹簧测力计固定在一号导向板之间，通过提升机构拉动弹簧测力计进行拉拔力的测试，此种设计，能够直观的测试出导线的拉拔力，通过采用非人工的测试方法，能够增加测试的效率和准确性。

Soil Testing Apparatus for various stress path tests under plane strain condition

본 발명은 밀폐공간을 제공하는 하우징과, 상기 하우징 내에 설치되어 시료가 놓이는 시료기와, 상기 하우징 내에 압력을 제공하는 가압장치를 포함하는 토질 시험기에 관한 것으로서, 상기 시료기는, 시료(150)를 양측에서 지지하는 두개의 측벽(142, 144)과, 측벽(142, 144) 사이의 아랫부분을 막는 하부캡(122)과, 측벽(142, 144) 사이의 윗부분을 막으면서 시료(150)를 누를 수 있도록 상하운동 가능하게 설치되는 상부캡(124)과, 시료(150)의 측면을 둘러싸는 내측 멤브레인(152)과, 하부캡(122)과 상부캡(124) 사이의 외측면을 둘러싸는 외측 멤브레인(154)과, 상기 하우징의 외부로부터 시료(150)에 연결되는 간극수압관(L1, L2);을 포함하여 이루어지는 것을 특징으로 한다. 본 발명에 의하면, 시료의 부피변형이나 간극수압을 정확히 측정하면서 다양한 응력경로의 시험을 할 수 있을 뿐만 아니라 실제 현장의 유일 파괴면을 재현할 수 있고, 시료의 변형과정을 시각적으로도 정확히 관찰할 수 있으며, 시료의 성형을 용이하게 할 수 있다. The present invention relates to a soil tester including a housing providing a sealed space, a sample installed in the housing and a sample placed thereon, and a pressurizing device for providing a pressure in the housing. Press the sample 150 while blocking the two side walls 142 and 144 supported by the lower side, the lower cap 122 blocking the lower portion between the side walls 142 and 144, and the upper portion between the side walls 142 and 144. The upper cap 124 is installed so as to be able to move up and down, the inner membrane 152 surrounding the side of the sample 150, the outer side surrounding the outer surface between the lower cap 122 and the upper cap 124 It characterized in that it comprises a membrane 154, and the pore pressure pipe (L1, L2) connected to the sample 150 from the outside of the housing. According to the present invention, it is possible not only to test the various stress paths while accurately measuring the volume deformation or the pore water pressure of the sample, but also to reproduce the only fracture surface of the actual site, and to visually accurately observe the deformation process of the sample. Can facilitate the shaping of the sample. 평면변형, 다양한 응력경로, 이중 멤브레인, 간극수압, 부피변형, 몰드 Plane deformation, various stress paths, double membrane, pore water pressure, volume deformation, mold

Pipeline pressure chamber loading system capable of loading multiple loads simultaneously

本发明提供一种可同时加载多种载荷的管道压力舱加载系统，包括：试验管，端部通过法兰与试验舱舱壁上的通孔密封安装；轴向加载装置，包括与法兰连接的作用筒，和与作用筒连接的轴向油缸；扭矩加载装置，包括套环，和固定在套环上的加载轴，以及与加载轴固定连接的扭矩油缸，套环通过内表面的凹槽与作用筒外表面的齿条卡合后套接；弯矩加载装置，包括套在试验管管身上的套箍，套箍包括内环、外环和安装在两者之间的滚珠，在外环的外表面连接有弯矩油缸。本发明在深海液压加载舱的基础上，针对加载舱设计外部作用加载端，能够对深海载荷情况进行更好的模拟，最终达到三种载荷同时加载的目的，可对管道在深海复杂载荷作用下的破坏过程进行研究。

Laser automatic movement test machine of weight and laser automatic movement test method for seat belt parts of a car

본 발명은 자동차 안전벨트의 중요부품인 웨이트의 높이 및 상측 꼭지부의 쪽 떨어짐을 검사하는 자동차의 안전벨트 부품용 웨이트의 레이저 자동 검사 머신 및 레이저 자동 검사 방법에 관한 것으로, 원형 회전형 검사 장비에서 웨이트가 공급되고 검사 구간을 순차적으로 이동하면서 웨이트의 상부 측 높이를 레이저 높이 센서기에 의해 센싱으로 높이를 정확하게 측정하며, 상기 웨이트의 상부로 돌출된 돌기의 크랙(crack) 및 돌기의 접합 불량을 자동 검사로 구분하여 생산성 향상 및 원가절감을 이룰 수 있도록 한 자동차의 안전벨트 부품용 웨이트의 레이저 자동 검사 머신 및 레이저 자동 검사 방법에 관한 것이다. 이를 위한 본 발명의 자동차의 안전벨트 부품용 웨이트의 레이저 자동 검사 머신은, 회전축과 결합되어 회전하고, 원형테이블의 형상에 일정한 간격으로 선별구간이 형성되어 있는 회전테이블과; 상기 회전테이블에서 검사구간을 선회하는 스테이지와; 상기 스테이지의 각각에 내장시키기 위해 상단의 돌기 일체형으로 형성한 웨이트를 저장부에서 하나씩 순차적으로 정렬공급하게 하는 파츠피더 공급기와; 상기 스테이지에 웨이트가 내장되었는지를 파악하는 감지센서와; 상기 스테이지에 공급된 웨이트가 회전이송되어 1차 검사공간에 진입하여 레이저 높이 센싱 작업으로 웨이트의 규격화된 높이 양품 검사를 하게 되는 레이저 높이 센서기와; 상기 레이저 높이 센서기를 거쳐 2차 검사공간에 진입하여 웨이트의 돌기가 견고한 부착성 을 갖고 있는지를 측정하기 위해 에어실린더로 전후 왕복하여 불량을 선별하는 접합 측정기와; 상기 레이저 높이 센서기에서 판별된 높이 기준 이하의 웨이트와 접합 측정기에서 판별된 접합 불량으로 선별된 웨이트를 배출하는 제1 불량 배출부와; 상기 레이저 높이 센서기에서 판별된 웨이트의 높이 기준 이상으로 판별된 불량의 웨이트를 배출하는 제2 불량 배출부와; 상기 레이저 높이 센서기와 접합 측정기에서 웨이트의 규격화된 높이와 돌기 접합 양호 판별 받은 양품의 웨이트를 취출하는 양품 취출부와; 상기 레이저 높이 센서기의 센싱신호를 수신하며, 접합 측정기의 공기압 측정값을 수신하는 동시에 배출할 웨이트를 결정하여 제어하는 판별 제어부;로 구성된 것이다. 웨이트, 자동차, 안전벨트, 돌기, 돌출부, 높이측정, 크랙, 양품 판별

Method and arrangement for measuring the mechanical properties of rock and minerals "in situ" for determining the rock-burst tendency of the deposit and the country rock

To determine the rock-burst tendency of deposits, in particular coal seams, the mechanical properties of the minerals as well as of the country rock are determined. To this end, bores are made in the mineral, and deposited there is a measuring probe which has pressure plates which can be moved against the borehole wall. These pressure plates are acted upon by an increasing hydraulic pressure, or by a decreasing hydraulic pressure after a maximum value is reached, the pressure changes being continuously determined, compared and analysed. To this end, an inductive displacement-measuring device or a wire-strain-gauge pressure sensor is allocated to the probe or the hydraulic line. These devices are in turn connected to a computer via amplifiers and further processing units. In this way, the natural tendency of the seam to result in rock burst in the rock mass can be determined in good time and thus the particular state can be checked and if need be rendered safe or worked by suitable means. <IMAGE>

Test bench for internal pressure testing of deepwater apparatus modules

FIELD: test equipment. SUBSTANCE: invention relates to production of process modules of deep-water apparatuses, namely, to equipment for hydraulic tests for strength and tightness. Proposed test bench comprises sealing heads arranged to displace thereat, supports for tested module, having adjustable mounting mechanisms, means of controlling parameters and feeding working fluid into tested cavity, drain system for draining of possible leaks of working fluid. Stand is made in the form of a bearing frame consisting of two side walls, which are connected from above by two bridges, on which guides are mounted to move two vertically arranged platforms installed parallel to each other on self-propelled trucks, at that, through the said walls pass the screw stops intended for fixing the platforms on the end surfaces of the module, and the supports are made in the form of slip trolleys, rail tracks for which are located perpendicular to the stand axis, the sealing heads are made in the form of flanges of certain diameters, installed on the platforms towards each other along the stand axis and the holes of which have inwardly directed cone sealing surfaces, wherein they are equipped with sealing rings of round section, installed during tests on top of housing module in flange end stop and with additional fixation of sealant. EFFECT: improving processability and efficiency of hydraulic tests, reducing labor intensity of installation and removal of reusable sealing covers, saving energy resources. 6 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 701 756 C1 (51) МПК G01M 3/04 (2006.01) G01N 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01M 3/04 (2019.05); G01N 3/10 (2019.05) (21)(22) Заявка: 2019102321, 28.01.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 01.10.2019 (45) Опубликовано: 01.10.2019 Бюл. № 28 2 7 0 1 7 5 6 R U (56) Список документов, цитированных в отчете о поиске: RU ...

Rock mass dynamic testing apparatus

본 발명은 암반 동적 물성시험 장치에 관한 것으로서, 시편을 자유단-고정단 상태로 고정하는 시편 고정부와, 시편을 수용하며 에어 챔버 내부에 공기압을 인가하는 압력 재하부와, 시편에 비틂 가진력을 인가하는 회동 가진부와, 회동 가진부와 교체 가능하게 구성되며 시편의 축방향으로 가진력을 전달하는 축방향 가진부 및 시편에 축방향 하중을 인가하기 위한 의 하중을 인가하는 축하중 재하부를 포함하며, 동일 시편에 공진주/비틂 전단 시험, 축방향 진동 시험을 함께 수행할 수 있도록 하는 효과를 갖는다. The present invention relates to a rock dynamic property testing apparatus, comprising: a specimen fixing portion for fixing a specimen in a free end-fixed end state; a pressure loading portion for accommodating the specimen and applying air pressure into the air chamber; It includes a rotating excitation part that is applied, an axial excitation component that is replaceable with the rotating excitation part, and an axial load that transmits an excitation force in the axial direction of the specimen, and a load during celebration to apply a load of axial load to the specimen. In addition, it has the effect of being able to perform the resonant column / torsion shear test and the axial vibration test on the same specimen. 암반, 암석, 절리, 동적 물성, 공진주, 비틂 전단, 축방향 진동, 축하중 Rock, rock, joint, dynamic properties, resonant column, torsional shear, axial vibration, celebration

Portable electro-hydraulic test bed apparatus with analog control station and methodology

A portable electro-hydraulic test bed apparatus with analog control station and methodology for performing hands-on materials and components testing. A portable test bench is provided having a hydraulic pump and a reservoir of hydraulic oil. The pressurized hydraulic fluid flows through a pressure relief valve, filter, and ball valve to a servo control valve. The servo control valve controls the action of the hydraulic ram. Any return hydraulic fluid flows through check valve, filter, and heat exchanger back to the reservoir. The servo control valve with the hydraulic ram may be moved to the location where the test is to occur. Whenever the hydraulic ram is moved to a different location displacement interlock is also required. The hydraulic ram is anchored at one end and the test is performed on the test item with the other end of the ram. A displacement sensor is included to determine how much the test item is being displaced. In addition, a load cell is included to determine the load that is exerted on the test item. A portable analog control station is provided.

Device for determining properties of thin-walled material of hemispherical segments

FIELD: measurement technology. SUBSTANCE: device comprises a power frame, which includes a lower base on which is fixed the lower clamp part having corresponding inner surface of the hemispherical segment support surface with a central hole, and an upper base comprising an upper guide with mating surface having a similar hole in the center, overlapping by the segment placed between supporting surfaces of the lower spherical gripping clean and upper stop and hermetically closing the inner cavity at the bottom clamping portion, in which the possibility of creating of organized increasing hydraulic pressure to the segment. On the basis of uniformly established executive cylinders that hold the lower part of the clamp. In addition the lower hydraulic cavities in the clamping portion and executive hydraulic cylinders are independent of each other, in addition to the lower clamping portion has the possibility of axial movement relative to the symmetry axis deflection device has the possibility for the upper lateral movement and also relative to the symmetry axis deflection device support surface. EFFECT: expanding the range of the test membranes by hydrostatic load due to the implementation of the possible variations depending on the efforts of consolidation of the value of the working fluid pressure acting on the membrane, the realization of the possibility of non-destructive testing of thin spherical shells in order to assess their structural strength, improve the reliability of fixing different thickness membranes due to exclusion of local plastic compression at the site of entrapment. 5 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 611 979 C1 (51) МПК G01N 3/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015154164, 16.12.2015 (24) Дата начала отсчета срока действия патента: 16.12.2015 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 16.12.2015 (45) Опубликовано: ...

A kind of crane torsion test device and method of large and medium-sized building element

本发明公开了一种大中型建筑构件的抗扭试验装置及方法，包括加力架（1），加力架为矩形框架；加力架内设有旋转梁（2），旋转梁两端经刚性杆（3）与加力架底梁（7）连接；刚性杆两端分别设有万向节（8），刚性杆顶端经万向节与旋转梁端部万向连接，刚性杆底端经万向节与加力架底梁万向连接；加力架底梁和旋转梁中间分别设有限位槽（10）；加力架顶梁（9）中间设有液压装置（4），液压装置的伸缩杆（5）与旋转梁中间的旋转节点（6）连接。本发明摆脱了现有技术完全依靠理论数据进行大中型建筑构件设计的理念，为设计提供了可靠的实验依据。可避免在设计中盲目提高安全系数造成不必要的浪费，同时保证了建筑内部空间的最大有效使用面积。

High-speed tensile testing machine

本发明提供一种即便在使移动侧夹具以大的速度移动的情况下，也可以确实地防止在移动侧夹具与支撑构件之间产生滑动的高速拉伸试验机。支撑位移计中的移动体的支撑构件(41)具有与移动体相反侧的端部。所述端部具有包围移动侧夹具(11)中的小径部(31)的裂槽结构，且具有通过螺钉(42)的作用来夹持移动侧夹具(11)中的小径部(31)的结构。由此，支撑构件(41)中的移动侧夹具(11)侧的面(49)与构成段差部的大径部(32)中的支撑构件(41)侧的面(39)进行面接触，而防止移动侧夹具(11)与支撑构件(41)之间的滑动。

Concrete creep test method

The present invention relates to a complex test apparatus to evaluate a static and dynamic material properties of concrete and a concrete strength test method using the same and, more specifically, relates to a complex test apparatus to evaluate a static and dynamic material properties of concrete designed to test a creep test, a compressive strength test, an impact resistance test, a general-load bending strength test, a rapid-load bending strength test, a general-load tensile strength test, and a rapid-load tensile strength test therein as necessary; and a concrete strength test method using the same. The complex test apparatus to evaluate the static and dynamic material properties of concrete comprises: a support, column parts, a main body part, a hydraulic cylinder, a hydraulic valve part, a hydraulic piston, a load jig, a hydraulic unit, an accumulator, and a control part.

Aeroengine casing pressure test tool and using method thereof

本发明涉及一种航空发动机机匣压力试验工装及其使用方法，该航空发动机机匣压力试验工装包括密封底座、转接筒体、限位筒体、滑动密封塞和上筒体，限位筒体包括上传力段和下传力段，滑动密封塞包括与上传力段内壁滑动且密封配合的下滑盘、与上筒体内壁滑动且密封配合的上滑盘、用于连接下滑盘和上滑盘的连接柱，上传力段的上部设置对下滑盘进行限位的上传力凸台，下传力段的上部设置对下滑盘进行限位的下传力凸台，下滑盘置于上传力段内，上滑盘置于上筒体内，由上滑盘与上筒体顶壁之间形成调压容腔，由下滑盘与上传力段、下传力段、被测机匣、转接筒体、密封底座之间形成载荷容腔。

Full-automatic universal tester

本发明公开了一种全自动万能试验机，包括钳口装置和减震装置；钳口装置包括上钳口单元、下钳口单元和第一驱动单元；上钳口单元包括动横梁和第一夹紧模块，第一夹紧模块与动横梁相连；下钳口单元包括静横梁和第二夹紧模块，第二夹紧模块与静横梁相连，且第二夹紧模块与第一夹紧模块相对设置；静横梁上位于第二夹紧模块的下方设有第一贯通孔；第一驱动单元的两端分别与上钳口单元和下钳口单元相连，驱动上钳口单元相对于下钳口单元做相对运动；减震装置与下钳口单元相连。本发明能够实现试验后钢筋直接从夹具中掉落到接料斗中，接料斗外接接料箱；试验机在施加和卸除试验力的过程中平稳，无冲击和振动现象，提高了试验的安全性。

Point-type loading universal load transfer experimental stress loading system and method

本发明提供一种点式加载万向传载的实验应力加载系统及方法，涉及矿山工程、力学工程技术领域。本发明所述点式万向传载系统包括点式多级独立加载单元，该单元包括液压油缸和点式加载面板，液压油缸顶端设有球形凸面，点式加载面板中部焊接一个球形凹面，液压油缸的球形凸面和点式加载面板的球形凹面活动连接，液压油缸通过高压油管与控制台相连接；所述控制台通过高压油管与液压泵相连接，控制台内置有两个压力表；所述压力表置于液压泵上，所述液压泵的另一端与阀门的一端相连接，阀门的另一端与油压罐相连接；本系统可以实现应力加载方向的改变，为研究模型不同的力学环境提供了新的技术手段和方法，改变了以往模型加载方向单一的困扰。

High-pressure hydrogen environment mechanical test device and test method thereof

本发明提供了种高压氢环境力学试验装置，包括主腔体、密封组件和氢气系统；所述主腔体两端分别安装上带刺型密封塞和下带刺型密封塞；所述主腔体两端内部分别放置上导向环和下导向环，所述上导向环和下导向环之间用于支撑试样；所述试样一端与上连接块连接，且所述上连接块伸入上带刺型密封塞；所述试样另一端与下连接块连接，且所述下连接块伸入下带刺型密封塞；所述下连接块固定在下带刺型密封塞上；所述试样与所述主腔体内孔之间的间隙设为充气室，所述充气室上设有进气口和出气口，所述进气口和出气口连通氢气系统，用于给所述充气室填充氢气。本发明可以实现在高压气体环境下的拉伸或者疲劳实验。

Strip coal pillar stability testing device and testing method

本发明提出一种条带煤柱稳定性试验装置及试验方法，条带煤柱稳定性试验装置包括试验箱体、加载单元、试验架以及供水单元，试验箱体包括下板、后侧板、前侧板、左侧板、右侧板和上板，加载单元包括液压组件、左压头、右压头、上压头、加压箱和水囊，试验架包括左立柱、右立柱和横梁，左压头连接左立柱，左压头的活柱连接左侧板，右压头连接右立柱，右压头的活柱连接右侧板，上压头连接横梁，上压头的活柱连接上板，供水单元连接水囊和水接头。本发明的有益效果为：结构牢固，组装简单，操作方便，模拟条带开采过程，试验得到的数据准确；模拟条带开采过程并获取条带开采中的数据，对条带煤柱的稳定性进行定量分析。

A kind of mash welder welding intensity detecting device

本发明公开了一种点焊机焊接强度检测装置，包括固定底座和减震底座，所述固定底座的内部设置有缓冲橡胶，所述减震底座的上方设置有基座板，所述减震底座的上方设置有固定座，所述支撑杆的前方安装有固定螺母，所述支撑杆的上端内部安装有连接螺栓，所述动力轮的左侧连接有动力带，所述固定轴承的左侧连接有定向导轨，所述滑块的内部设置有导向轮。该点焊机焊接强度检测装置，与现有的普通强度检测装置相比，相比于普通的强度检测装置，增加结构的同时大大提高了整个装置的使用性能，避免了原始手动检测操作过程中因外界因素所产生的误差，明显提高了整个装置在使用过程中对强度检测的精确度，有效的满足了人们的使用需求。

Axial force uniform distribution type concentric clamp tensile testing machine

本发明属于拉伸试验应用设备领域，尤其涉及一种轴力均布式同心夹具拉伸试验机。包括机架以及设置在机架顶部的下平推液压夹具，所述下平推液压夹具的上方设置了上平推液压夹具，所述机架上还设置有加载液压缸，所述上平推液压夹具通过加载液压缸设置在下平推液压夹具的上方，所述机架上设置有四个加载液压缸，所述加载液压缸呈矩阵状分布在下平推液压夹具的四周，所述加载液压缸的活塞杆上设置有拉压传感器，本发明通过对加载液压缸的合理布局，使得平推夹具的侧面空间暴露开，进而方便维修安装，同时，通过拉杠的设置，使机架上方的空间可以用于拉伸试验，机架下方的空间可以用于压缩试验，降低了整机的高度。

Static test device for studying anti-collapse performance of multi-layer composite floor beam-column substructure

本发明公开了一种多层组合楼板梁柱子结构抗倒塌性能研究的静力试验装置，包括钢门架、第一边柱、第二边柱、中间柱、失效柱、门架横梁、第一稳压千斤顶、第二稳压千斤顶、液压伺服作动器、第一地梁、第二地梁、第三地梁、第一水平铰接装置、第二水平铰接装置、若干第一拉压传感器及若干第二拉压传感器，该装置能够有效的解决试验过程中多层组合楼板梁柱子结构中楼板的组合效应、结构的空腹效应、结构跨度不对称性、结构边界约束不对称性以及较难施加荷载的问题。