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WO/1987/007051A1 |
A suspension system for controlling the movement of first (11) and second (30) relatively reciprocating members, comprising a plurality of link arm means (46) coupled between the first (11) and second (30) relatively reciprocating member...
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WO/1987/007020A1 |
An electro-mechanical shaker apparatus (10) utilizing a novel design. The shaker apparatus (10) includes an armature frame (30) which is directly coupled to an armature coil (20) to form an integrated unit. The shortened height of the un...
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WO/1987/006693A1 |
A solid state power amplifier for driving a shaker. The amplifier is comprised of a circuit which generates a pulse-width modulated drive signal for driving an armature of a shaker. The circuit includes an oscillator (91) (92) (93), powe...
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WO/1987/005669A1 |
A circuit (110, 129, 143, 145) for obtaining higher accuracy and total system response for complex mechanical impedance loads, such as earthquake simulators, and in particular to compensate for limitations in controlling the actual valve...
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WO/1987/004242A1 |
A shaker table (10) includes a table base (12) mounted upon isolating supports (32) and vibrated by vibrators (34, 36). The vibration is conveyed through and damped in a flexure member (16) comprising pairs (26, 28) of honeycomb layers (...
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WO/1987/002601A1 |
A vibrating element (1) fixedly supported by leaf springs (2, 17 at 3). A drive comprises both separate vibrators (4 and 5) which act upon both extremities (7, 8) of a tumbler lever (6) linked on its turn to the vibrating supporting elem...
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WO/1986/006478A1 |
A driver bar assembly for coupling together a shaker head (12) and a slip plate (34) carrying a test piece (60) to be vibration tested, the assembly comprising a driver bar (14) having a laterally extended locus of intersection (L-L, P-P...
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WO/1985/003573A1 |
A load dynamic compensation circuit (70) for a servohydraulic control system for fixtures (10) and specimens (15) being tested operating in various degrees of freedom, for example in an environment to simulate earthquakes to test buildin...
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WO/1985/003547A1 |
Table couplings for coupling hydraulic actuators (20) to large shaking (22) tables (10), such as earthquake simulator tables are preloaded under gaseous psressure to permit the couplings to be nontension carrying couplings, which in turn...
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WO/1984/001030A1 |
The dynamic properties of a machine (18) are defined by its kinetic energy, potential energy and dissipation functions. The machine is also identifiable by means of the nonviscous friction therein. These properties form the basis for the...
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WO/1983/003371A1 |
Two-axis shaker vibration of a slip plate (12) is achieved by use of angularly disposed shakers (18, 20) of novel design, each being provided with an armature (66) cantilevered from the slip plate (12) and free to laterally translate at ...
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WO/1983/003370A1 |
A torsionally stiff flexure support (30) for the slip plate (16) in a vibration apparatus (10) is provided permitting predetermined linear motion along the axis of vibration by longitudinal bending of the flexure support, but by virtue o...
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WO/1982/003686A1 |
A technique for evaluating the impact-resisting characteristics of electrical insulation in generators, coils and similar electrical equipment. The magnitude of an impact signal applied to a generator coil is processed as a signal either...
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WO/1982/000715A1 |
A device for measuring dynamic characteristics of objects during impact comprises, connected in series, a sensor (1) of displacement parameters of the object during the impact, a pulse former (2) and a controllable key (3). To the output...
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JP7468374B2 |
A vehicle diagnosis system has: a diagnosis unit that diagnoses an abnormality of a part separating the inside and the outside of a vehicle cabin in a vehicle; an alarm and a horn located outside the vehicle cabin; and a microphone locat...
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JP2024053190A |
[Problem] To provide an impact tester with improved repeatability of collision speed despite a relatively compact configuration. [Solution] An impact testing machine that evaluates impact applied to an impact test object, A test piece th...
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JP2024053033A |
The present invention provides a building health verification system, a building health verification method, and a manufacturing method of a building health verification system that can further improve reliability. A building integrity v...
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JP7466798B1 |
The crack inspection device (1) includes an input section (2) which is a structure data acquisition section that acquires structure data indicating the characteristics of the structure to be inspected, and a crack inspection device (2) t...
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JP7465734B2 |
To provide a remote control system of a collision test vehicle that enables remote control of a collision test vehicle and allows a driver to sit in a driver seat and drive the collision test vehicle without remodeling the vehicle.First ...
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JP2024047149A |
An object of the present invention is to provide a method for evaluating the performance specifications of a pressure motor type mass damper, which allows the performance specifications of a mass damper to be evaluated with high accuracy...
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JP2024042021A |
[Problem] To predict the excitation specifications necessary for a vibration test, select a vibration test device, and quickly and reliably judge whether or not it is possible to conduct a vibration test with the vibration test device th...
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JP7453325B2 |
To suppress vibration of a building structure by a simpler method.A vibration control system includes: a first artificial neural network (hereinafter referred to as the first NN) subjected to learning processing by using a vibration simu...
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JP2024031816A |
The present invention improves the accuracy of estimating the location of a signal even with one or a small number of sensors. A design support system includes a 3D information acquisition unit that acquires 3D information of a target ob...
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JP2024028119A |
An object of the present invention is to provide a method and apparatus for testing vibration characteristics of an automobile body, which simulates road surface conditions and driving conditions of an actual vehicle by inputting vibrati...
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JP2024509394A |
A system and method for measuring dynamic properties of a structure and using the measured dynamic properties to evaluate the dynamic performance of the structure. The system and method can separate the measured response into low amplitu...
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JP2024028057A |
An object of the present invention is to improve the durability of a linear guide that supports a vibration table by making it less susceptible to influences such as temperature and humidity. [Solution] A vibration table unit 100 include...
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JP2024509005A |
The present disclosure provides a vibration excitation system and apparatus for testing an aircraft engine rotor in the field of aero engines to improve the versatility of the vibration excitation system. The vibration excitation system ...
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JP7440358B2 |
To provide a spherical joint having a large load capacity while suppressing an external dimension.A spherical joint 20 includes an inner ring 1 having a shaft 4, and an outer ring 2 encapsulating the inner ring 1. The outer ring 2 includ...
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JP2024025543A |
The present invention provides a test device including an auxiliary support device installed with a telescoping device that moves in multiple degrees of freedom and having a mechanism for receiving static loads within a permissible eccen...
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JP7438005B2 |
To obtain a simulated earthquake motion appropriately representing the time-course characteristics of an actual earthquake motion, while conforming to a target acceleration response spectrum.A simulated earthquake motion creation device ...
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JP2024019786A |
The present invention provides a vibration test technique that can increase the excitation force of a test object by suppressing a decrease in the stimulation coefficient of the test object in the liquid in a vibration test of a structur...
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JP7430433B2 |
To predict excitation specifications required for a vibration test so as to quickly and precisely select a vibration test device and determine whether or not the vibration test can be performed by an owned vibration test device.An excita...
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JP7429594B2 |
To provide a building-purpose seismic isolation device damage diagnostic method that has a part in which linear motion conducts, using a machine element actuating by rolling of a ball.Instead of a conventional building-purpose seismic is...
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JP2024016663A |
The present invention provides a distorted component detection program that enables accurate detection of distorted components. [Solution] As a distorted parts detection program that utilizes vehicle collision CAE calculation results, pr...
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JP2024011879A |
[Problem] To create a response spectrum for seismic performance evaluation that takes into consideration the dynamic interaction of each vibration mode of equipment modeled in a multi-degree-of-freedom system. The present invention inclu...
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JP2024005312A |
An object of the present invention is to provide a method for estimating the natural period of a low-rise building, which can easily and accurately estimate the natural period of a low-rise building without requiring structural calculati...
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JP7410459B2 |
To provide an automobile body vibration characteristic test device, method, and program that can accurately determine the vibration characteristics of an automobile body even in an environment with much external noise.An automobile body ...
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JP7407463B2 |
To allow installation of an air spring with a large capacity to prevent the influence on vibration characteristics due to the characteristic frequency of the air spring, and prevent an increase in the size of the device.A vibration table...
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JP7406087B2 |
To provide a device and a method for testing an impact that can properly simulate the actual situation of a partial structure at the time of hitting.The present invention relates to an impact testing device which applies an impact to a t...
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JP7406239B2 |
To oscillate a test piece in three axis-directions in a wide frequency band from a low frequency to a high frequency and at large acceleration.An oscillation testing device comprises: a first oscillation exciter 31, a second oscillation ...
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JP2023183008A |
To omit calculation processing without requiring a threshold to a response value while simplifying the device configuration.A soundness evaluation system comprises: a detection unit which has a first sensor that is provided at a first po...
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JP7405393B2 |
To provide a vibration test device with failure prediction capability for preventing worsening of failure through early detection of anomalies in the vibration test device, and to provide a failure prediction method thereof.A vibration t...
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JP7404947B2 |
A measurement device measures a frequency response of a servo system, applies predetermined oscillation are associated with each other to the servo system, identifies, from a result of oscillation application, a pair of a first oscillati...
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JP7405347B2 |
A vibration control system calculates a Kurtosis Response Spectrum (KRS) of a response waveform which characterizes non-Gaussianity in a random vibration test and is utilized for vibration control. The system compares a target KRS and th...
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JP2023182030A |
To provide an oscillation detection device and inspection system that make it possible to inspect oscillation by oscillating an object.An oscillation detection device 3, which detects oscillation of a tile for inspecting the tile, compri...
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JP7403929B2 |
A vibration generation device which can vibrate in only one axial direction is used to simultaneously load a vibration force in a plurality of axial directions onto a test piece, and to make it possible to easily modify the proportion of...
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JP2023181978A |
To estimate earthquake information on the stories of a building from earthquake information detected by sensors provided on the limited number of stories.A building response estimation method, when each of a plurality of stories is defin...
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JP2023180603A |
To provide a bridge girder bearing part abnormality monitoring method and a bridge girder bearing part abnormality monitoring system for monitoring abnormality of a bridge girder bearing part by a quartz vibration type acceleration senso...
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JP7397359B2 |
A vibration test device (100) is a vibration test device for testing vibration of a pipeline (10) attached to a structure. The vibration test device includes a plurality of support members (101a, 101b) that are joined to a wall surface w...
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JP2023177068A |
To prevent heat from being transmitted from a vibration test stand to a bearing in a vibration generation device comprising the vibration test stand.A vibration generation device comprises: a vibration generation unit that generates vibr...
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