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公开(公告)号：US3043135A
公开(公告)日：1962-07-10
申请号：US81685359
申请日：1959-05-29
申请人： AVCO CORP
发明人： COULOURIOTES JAMES G
IPC分类号： G01M7/02
CPC分类号： G01M7/027
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公开(公告)号：US12130211B2
公开(公告)日：2024-10-29
申请号：US17603364
申请日：2020-03-23
发明人： Soeren Christiansen
摘要： Provided is an exciter device for fatigue testing of a blade of a wind turbine, including a actuator for generating a periodic excitation force and a coupling device for coupling the actuator to a blade to be tested. The exciter device includes a pretensioning device applying a pretension such that the excitation force only acts in a pulling or pushing direction over the whole period.
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公开(公告)号：US20240310239A1
公开(公告)日：2024-09-19
申请号：US18205822
申请日：2023-06-05
发明人： Hsin Hua CHEN , Chun-Ming LU
IPC分类号： G01M7/02
CPC分类号： G01M7/027
摘要： A test fixture configured to support a DUT (device under test) and including a bottom base, two mounting bases, a rotatable base and a supporting base. The two mounting bases stand on a side of the bottom base and are spaced apart from each other. The rotatable base is rotatably disposed on the two mounting bases. At least a part of the rotatable base is located between the two mounting bases. The supporting base is fixed on a side of the rotatable base and configured to support the DUT. When the supporting base is parallel to the bottom base, the supporting base is located on a side of the rotatable base located farthest away from the bottom base.
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公开(公告)号：US20240159619A1
公开(公告)日：2024-05-16
申请号：US18416111
申请日：2024-01-18
摘要： An oscillating device includes a vibrating table to which an oscillated object is to be attached, and an oscillating unit that oscillates the vibrating table in a predetermined direction. The vibrating table includes a hollow part in which the oscillated object is accommodated, a bottom plate, a frame part that protrudes perpendicularly from an edge portion of the bottom plate, and an intermediate plate arranged inside the frame part. The intermediate plate has a shape of a lattice protruding perpendicularly from the bottom plate.
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35.发明授权公开(公告)号：US11781941B2
公开(公告)日：2023-10-10
申请号：US17583923
申请日：2022-01-25
申请人： Robert Bosch GmbH
发明人： Michael Sturm , Kevin Wienen , Michael Yankonis
摘要： System and methods for characterizing a response of a structure-under-test to applied excitation forces using a test fixture. The fixture is selectively coupleable to the structure-under-test and is configured to hold the structure-under-test at a known position and in a known orientation relative to the fixture. A plurality of excitation devices and response sensors are coupled to the fixture. Excitation forces applied to the fixture by the excitation devices are conveyed by the fixture to the structure-under-test and each response sensor measures a dynamic response indicative of a response of the structure-under-test and the fixture to the applied excitation force. A controller receives response sensor data and applies a mathematical coordinate transformation to project the forces and moments corresponding to the applied excitation and the measured dynamic responses to a target point of the structure-under-test and to calculate a system response function based at least in part on the projection.
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公开(公告)号：US11755794B1
公开(公告)日：2023-09-12
申请号：US18190271
申请日：2023-03-27
申请人： JIANGHAN UNIVERSITY
发明人： Longjun Xu , Haoyu Wu , Shibin Lin , Guochen Zhao , Qinghui Lai , Qihan Xu , Lili Xie
摘要： The present application provides a soil-rock fault simulation device, comprising a base, a support arm, a first box body and a second box body; the first box body is movably mounted on the support arm and moves in a left and right direction to facilitate the movement of the first box body relative to the second box body in the left and right direction; the first box body moves in a forward and backward direction relative to the second box body as the support arm moves in a forward and backward direction relative to the base, and the first soil-rock in the first soil-rock space forms a forward-backward direction fault as the first box body moves in a forward and backward direction relative to the second box body; the fault simulation effect of soil-rock fault simulation device is improved.
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37.发明公开公开(公告)号：US20230243716A1
公开(公告)日：2023-08-03
申请号：US17588857
申请日：2022-01-31
申请人： The Boeing Company
IPC分类号： G01M7/02
摘要： A method of designing a test fixture configured to mount to a vibration slip table and fix a test article to the vibration slip table during a vibration test includes performing finite element analysis using one or more boundary conditions determined from parameters of the vibration slip table, the test article, or the vibration test to optimize a topology of the test fixture, and outputting a geometric model of the test fixture having the optimized topology. Another method of designing a test fixture includes inputting the one or more boundary conditions into a topology optimizing solver. A vibration test system includes a test fixture designed according to the method.
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38.发明公开公开(公告)号：US20230236084A1
公开(公告)日：2023-07-27
申请号：US17583923
申请日：2022-01-25
申请人： Robert Bosch GmbH
发明人： Michael Sturm , Kevin Wienen , Michael Yankonis
摘要： System and methods for characterizing a response of a structure-under-test to applied excitation forces using a test fixture. The fixture is selectively coupleable to the structure-under-test and is configured to hold the structure-under-test at a known position and in a known orientation relative to the fixture. A plurality of excitation devices and response sensors are coupled to the fixture. Excitation forces applied to the fixture by the excitation devices are conveyed by the fixture to the structure-under-test and each response sensor measures a dynamic response indicative of a response of the structure-under-test and the fixture to the applied excitation force. A controller receives response sensor data and applies a mathematical coordinate transformation to project the forces and moments corresponding to the applied excitation and the measured dynamic responses to a target point of the structure-under-test and to calculate a system response function based at least in part on the projection.
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公开(公告)号：US11698324B2
公开(公告)日：2023-07-11
申请号：US17667514
申请日：2022-02-08
发明人： Shutaro Hiramoto , Susumu Akutsu
CPC分类号： G01M7/027 , G01M7/022 , G01M7/06 , G01M17/045
摘要： The disclosure provides a vehicle excitation advice. The vehicle excitation device that excites a vehicle having a plurality of wheels includes a plurality of excitation machine bodies on which the wheels are placed, respectively. The excitation machine body includes a front shaft and a rear shaft on which the wheels are placed at intervals in the in the front-rear direction of the vehicle, and an actuator (hydraulic actuator) that excites vibration to the wheels by moving at least one of the front shaft and the rear shaft in the front-rear direction. The front shaft is inclined such that the inner end portion of the front shaft in the left-right direction of the vehicle is located closer to the front of the vehicle than the outer end portion of the front shaft in the left-right direction of the vehicle.
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公开(公告)号：US09599532B2
公开(公告)日：2017-03-21
申请号：US14803018
申请日：2015-07-17
发明人： Kiron Mateti , Craig Armes , Aaron Cole , Josh Borneman , Amanda Lin
CPC分类号： G01M7/027 , G01M11/0214 , H04N17/002
摘要： Systems and related methods are provided to perform optical characterization of system under tests (SUT), including one or more optical elements (OE), for various purposes including evaluation of optical resolution needed to distinguish image elements, blur, line of sight jitter, and/or pointing stability. Various testing systems and methods are provided including an embodiment having a vibration loading system (VLS), a first acceleration sensor coupled with the VLS, and a mounting structure adapted to receive the SUT. An illumination target system (ITS) emits light that passes through the SUT OE's lens and is captured by the SUT's imaging system. A light control system controls the ITS based on a plurality of activation commands and a Test Control System (TCS). The TCS receives ITS input through the SUT that is synchronized with acceleration sensor data (e.g. phase of VLS position) and analyzed via real-time or post-processing.
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