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WO/1999/014570A1 |
A multiaxial oscillator for oscillating a sample in translational and rotational directions, and a method of controlling the same. In a multiaxial oscillator, an oscillating point is set imaginatively, and a position corresponding to fre...
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WO/1999/014749A1 |
A method and apparatus (1) is described for optimizing the design of products, such as but not limited to mechanical products, by simultaneously subjecting the products to multiple stimuli, such as but not limited to temperature, vibrati...
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WO/1999/013454A1 |
A vibrator device system (300) includes a vibrator device (1) having fluid substance within a housing to produce a shock wave. The shock wave is generated by, for example, producing cavitating spaces in the fluid substance that collapse ...
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WO/1999/001735A1 |
The invention concerns a pyrotechnical test stand for producing acceleration and deceleration with simple or complex spectra, characterised in that the test bench consists of a launch tube (2) or a mobile equipment damper (6), whereof th...
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WO/1998/058446A1 |
The invention concerns a rotating electric motor system capable of vibrating and a method for operating a rotary electric motor capable of vibrating. The system comprises an electric motor having a rotor and a stator, the rotor and the s...
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WO/1998/041835A1 |
A vibration excitation testing apparatus for structures, which finds vibration response of a structure deforming in both of translational direction and rotational direction, and a vibration exciting apparatus used therefor. The vibration...
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WO/1998/029723A1 |
A modular vibration system which utilizes removable modules to adapt to any of a range of applications and performance characteristics, comprising a shaker module (12), a coupling module (13) and a fixture module (14). The shaker module ...
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WO/1998/026268A1 |
The figure shows pulse generation apparatus (1) including a impactor bar (2) that can be pre-loaded in a direction reverse to arrow (A) by hydraulic actuator (3). Bolt (6) is exploded whilst the impactor bar (2) is pre-loaded thus releas...
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WO/1998/026311A1 |
Seismic wave simulation apparatus (1) includes an elastic energy accumulator (4) shaped to induce a simulated seismic wave of known form in a geological specimen (2) in which is embedded the foundation (3) of a building. A hydraulic actu...
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WO/1998/014765A1 |
A method for determining the testing profile for accelerated laboratory random vibrational testing of a product, including the steps of (i) selecting the frequency range covered in the laboratory accelerated testing, (ii) developing a si...
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WO/1998/004911A1 |
Environmental screening of products (20) is facilitated and enhanced by employing screening compartments (24) to subject products to differing environmental and functional conditions to expose latent defects in the products such as condu...
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WO/1998/001737A1 |
Method and device for nondestructive determination of rigidity, strength and/or structural properties of preferably oblong and/or plate-shaped objects (11), alternatively determination of the geometrical dimensions of the object, through...
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WO/1997/046859A1 |
A test rig for impact testing on vehicles comprises a platform for mounting a vehicle seat and test dummy and an array of individually selectively controllable actuators, in close proximity to the platform. The actuators are extendible t...
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WO/1997/027478A1 |
Vibrational analysis is used to map the true sweet spot of a golf club (1, 2, 4). The testing device (3, 6, 7, 8, 9, 10), method of testing, method of designing a golf club, and tuned golf clubs are disclosed.
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WO/1997/021087A1 |
An application program and computer system for determining the testing profile for accelerated laboratory sinusoidal vibrational testing of a product, includes the application program steps of (i) selecting the type and rate for the freq...
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WO/1997/017602A1 |
Real scale investigations can be carried out on vehicle impacts using a vehicle, or part thereof, or crash barrier, tested on a large dynamic testing facility (LDTF). The LDTF includes nodes (402, 403) connected at either end of a sample...
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WO/1997/011344A1 |
A vibrating table system comprising a vibrator, a vibrating table and a controller for controlling the vibrator so as to reproduce target acceleration waveform by use of at least an accelerator measurement signal as a feedback signal. Th...
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WO/1997/004291A1 |
An apparatus for testing and stress relieving metal components comprising a vibration means (28), attachment means (30), control means (2) and measuring means (13, 31), the attachment means (28) being configured and arranged to, in use, ...
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WO/1996/041158A1 |
The integrity of structures may be determined by either one of two methods. In a first method, an impulse of energy is introduced into the structure (20), such as by striking the structure (20), and the induced vibration is measured and ...
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WO/1996/037765A1 |
An automatic and integrated mechanical and electrical accelerometer test system (10) includes a test fixture (12) for holding the accelerometers to be mechanically and electrically tested. A handler subsystem (16) automatically feeds the...
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WO/1996/034691A1 |
A screening apparatus (10) including a testing chamber (12) and a control console (14) for environmental screening and vibrational testing of products. The control console (14) controls and monitors the operation of the apparatus (10). T...
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WO/1996/026428A1 |
Environmental screening of products (20) is facilitated and enhanced by employing screening compartments (24) to subject electronics and other products (20) to differing environmental and functional conditions to expose latent defects in...
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WO/1996/015437A1 |
A variable volume test apparatus (10) utilizes an adjustable ceiling (18) to vary the volume of the chamber (20). The ceiling (18) is sealed in its new position through the use of an inflatable bladder (26). Adjustable vents (58) are pos...
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WO/1996/000379A1 |
A testing device (10) for surfaces subject to impact, comprising a transducer module (11) and an electronics module (17) cooperatively connected together. The transducer module includes an impact head for impact generally in the z-axis o...
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WO/1995/000828A1 |
The front body assembly of a vehicle is simulated by a reusable model-structure featuring a pair of side members collapsible accordion fashion and each comprising a number of arms hinged in series with one another by respective articulat...
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WO/1994/029814A1 |
A system (10) for simulating vehicle crashes for testing or evaluating the reliability of a vehicle crash sensor (20) includes a model waveform generator (16) which provides modeling of an actual vehicle crash waveform to generate an inf...
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WO/1994/020826A1 |
The fatigue integrity of metallic materials may be determined be either one of two methods. In a first method, an impulse of energy is introduced into the metallic material, such as by striking the metallic material (20), and the induced...
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WO/1994/017384A1 |
A scale modelling centrifuge has two concentric drive shafts (3, 4) to which can be readily releasably connected selected pieces of test equipment from a range comprising a centrifuge drum, one or more robot mechanisms, an inertial mass ...
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WO/1994/015268A2 |
The invention concerns a method for enhancing the reliability of damage diagnosis which can be used with any technical process in which one or more measured variables suitable for use in monitoring are available and the process dynamics ...
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WO/1994/000741A1 |
The device comprises, connected in series, a vibrator power supply (1), an amplifier (2), a vibroacoustic signal processing unit (3) and a recording unit (4). The vibroacoustic signal processing unit (3) comprises an analog-to-digital co...
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WO/1993/021510A1 |
A vibration test fixture having a fixture base (10) for carrying a unit under test, a hydraulic vibration actuator unit (16) having a cylinder, a piston that reciprocates in the bore within the cylinder, and a reciprocating piston rod (2...
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WO/1993/015386A1 |
A laser vibrational measurement system (5) to point a laser beam (14) at a specific point (11) on a vibrating structure (12) to extract the vibrational velocity at that point uses a laser velocimeter (10) having a beam (14) that is contr...
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WO/1992/015897A1 |
A vibration assembly comprising a housing (12) having a central cavity (20) and a pair of side cavities (22, 24) of radially smaller dimension than that of the central cavity, all of which extends axially about an axis (26) from opposed ...
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WO/1992/015856A1 |
The invention concerns a method for demonstrating the reliable functioning of automobile seat-belt locks operating in conjunction with belt tensioners, as well as a test device for carrying out the method. In the event of a crash, the be...
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WO/1992/011521A1 |
A vibrostand is used for testing various objects for vibration resistance and comprises a vibration exciter (5), a working platform (2), a reactive platform (4) mounted below the working platform (2), and elastic elements connecting the ...
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WO/1992/009847A1 |
A pipeline inspection apparatus includes a pipeline pig (1) which has a shaker (20) for causing the pig to vibrate in one or more of the vertical, longitudinal, lateral, bending and torsional senses. The vibrations are transmitted into t...
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WO/1991/019968A1 |
A novel gauge for estimating the life of a structure such as a frame of a dump truck and a method capable of easily estimating the life of a structure by the use of said gauge without the need of troublesome calculation. The gauge is pro...
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WO/1991/019173A1 |
Disclosed is a method and system for non-destructively assessing the structural integrity of composite structures (10). The present invention makes continuous or periodic quantitative measurements of changes in structural stiffness and s...
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WO/1991/018271A1 |
A multiexciter digitally swept-sinewave vibration test controller employing an adaptive control method which compensates for nonlinear and time variant physical characteristics of a system under test and for instrumentation errors. A sys...
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WO/1991/017414A2 |
Excitation is applied to a structure (2) and infrared radiation (5) emitted by the structure (2) passes through a telescope (3), scanning system (30) and focussing optics (40). The signal is then detected by an IR detector (24). The outp...
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WO/1991/013331A1 |
A shaker table (10) for testing and quality control of devices attached to the table is shown. The mounting table has pneumatic exciters (50) attached thereto. The mounting table (20) provides uniform distribution of forces applied by th...
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WO/1991/004801A1 |
An electromagnetic vibration generator having an armature (1) suspended from a stator (2) and carrying a coil (4) located in an air gap (3), in which the armature for transmitting vibrations generated to an article to be tested is suspen...
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WO/1991/001198A1 |
A method is described for tensioning large bolts (16) used in securing covers (12) for openings in pressure vessels, pipe couplings, valves and the like, in which a sealing gasket (18) is used. The method is designed to prevent leakage i...
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WO/1990/013805A1 |
A self-contained unit has a probe (N) urgeable against a structure to be tested, means (H, I, J, F, M) for applying a shock to the structure through the probe (N), and transducer means (A, B, C) for receiving resulting vibrations from th...
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WO/1989/007987A1 |
A vibration generator makes it possible to eliminate resonances in a frame and to utilize the full table travel in accordance with the operating diagram, over the whole range of operating frequencies. The vibration generator consists of ...
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WO/1989/007176A1 |
An apparatus for carrying out impact tests on the ground comprises a weight (15, 16, 17) mounted to a pivoted arm (12) and arranged to swing under gravity about the pivot point (14) of the arm and impact with the ground substantially per...
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WO/1989/007249A1 |
A method of inspecting structures is disclosed wherein a pressure sensor or an acceleration sensor is mounted on a hammer that imparts non-destructive impact to a material that is to be measured, and a signal produced by striking the mat...
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WO/1988/008525A1 |
A hydrostatic journal bearing for a vibration test apparatus. The apparatus comprises a pillow block housing (28) which is operatively coupled to a slip plate (10) mounting the workpiece (12) by an oil film on the housing surface (58), w...
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WO/1988/006283A1 |
Process and device for testing stabilizers (10) which are set on fixed mounts (16, 17) on an engine bed (32) and which, when a driving mechanism (27) is in operation, are deformed by the movement of one arm (12) of the stabilizer towards...
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WO/1987/007378A1 |
The method comprises the determination of at least one signature (2a) of the response to an impulse shock of a sound reference coating or covering, and a plurality (2b-2i) of signatures of the response of an impulse shock to a covering h...
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