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WO/2004/005879 |
An apparatus (10) for applying at least one load to a specimen (12) according to one embodiment of the invention may comprise a mass (18). An actuator (20) mounted to the specimen (12) and operatively associated with the mass (18) moves ...
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WO/2003/091684 |
A vibration test machine comprises a stationary outer frame, a shake table in the form of a mass to which vibration energy is transmitted inside the outer frame, a driven preload piston supported by the outer frame and coupled to one sid...
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WO/2003/085382 |
A method according to the present invention calculates a performance function for a structural system (10) that can be used to determine system dynamics at points of interest on the structural system (10). A test input force is applied t...
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WO/2003/069299 |
An actuator for applying force along an axis to a body, comprising an annular body (30) arranged along the axis, an annular magnetic field source (20) within and substantially coaxially with the annular body (30), a substantially cylindr...
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WO/2003/062780 |
A stress wave sensor (1) comprising a piezoelectric film (28) and means therein (50) for connection to sensor electronics (42). The piezoelectric film (28) preferably comprises polyvinylidene fluoride. Also a stress wave sensor system an...
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WO/2003/063119 |
A system for detecting and displaying force data relating to impacts received on an item of athletic equipment (52, 54) includes two or more items of athletic equipment (56, 58), each having a force sensor, logic and wireless transmitter...
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WO/2003/050427 |
A swivel joint (20; 100; 110; 120; 130) according to the present invention includes first and second base members (30A; 32A; 104A; 114A; 129; 136). A spider (34; 60; 70) includes first and second arcuate surfaces (36, 38) which form join...
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WO/2003/048740 |
An apparatus and method for use in testing devices (18) under high-g environments is disclosed in which an elastic beam (10), rigidly fastened at least at one end (12 or 14), carries the device under test; the beam being pre-loaded to a ...
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WO/2003/048714 |
Systems and methods for identifying the presence of a defect in vibrating machinery (120). An exemplary method (200) comprises analysis of frequency spectrum vibration data of the machine (120). The method (200) comprises deriving a harm...
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WO/2003/027628 |
The invention refers to an apparatus for testing a headrest (13) for a vehicle. The apparatus includes a support member (1) defining a path and a carriage (6) movably provided on the support member to be movable along the path. The carri...
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WO/2003/027627 |
The invention relates to a method for the diagnosis of characteristic vibrations in a mechatronic system, comprising at least one rigid body (WT1, WT2), which is displaced relative to another rigid body (S), by means of at least one nume...
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WO/2002/084032 |
A system (100) for the determination of pile parameters includes at least one structure for measuring pile data. It includes a crane (10) on which is mounted a boom (11), which is mounted to swivel at its upper end by hammer leads 812), ...
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WO/2002/063267 |
The present invention relates to a method for determining the values of stiffness and dampening, in particular of surfaces for sports fields. The invention furthermore relates to a device for carrying out the aforesaid method. The object...
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WO/2002/057735 |
Impact testing apparatus comprises a support member (34) which comprises a sacrificial energy absorber (14) housed under a metal shell (12). The support member (34) is configured to have impact characteristics which mimic those of a pred...
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WO/2002/057734 |
A testing apparatus (10) is provided for testing a manufactured product (36) in various climatic conditions. The testing apparatus includes a testing cabinet defining a testing chamber (26) for receiving the product therein and a vibrato...
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WO/2002/041193 |
The present invention provides techniques of frequency domain fatigue analysis which can be used to perform fatigue analysis for nonlinear structures or components subject to random loads. The techniques can be implemented in a way which...
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WO/2002/033391 |
The invention is an environmental chamber (1), for accelerated life-testing of products (3), comprising temperature, humidity, and pressure controls in combination with vibration and corrosive atmospheres. All test conditions can be appl...
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WO/2002/029292 |
A brush seal segment (24) is mounted within a pressure vessel (10) and against an arcuate surface (44) of an element to provide a seal between regions on opposite sides of the seal at different pressures. By vibrating the vessel through ...
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WO/2002/025240 |
A multiple region convolver (140) includes tapering between successive models of a physical system (10). The tapering is performed during a transition period.
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WO/2002/018927 |
Vibration generated on a surface to be measured is directly converted into voltage, without the intermediary of a medium such as air, by bringing a vibration sensor into a direct contact with the surface to be measured to quantify the vi...
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WO/2002/016702 |
The invention relates to a method for determining the earthquake resistance of buildings during which the natural frequency of the building is determined. In addition, the natural frequency of the ground surrounding the building is deter...
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WO/2002/016900 |
A flutter exciter includes first and second impellers rotatably connected together by coupling means and rotatable about a common axis in opposite directions, each impeller having at least one vane so that fluid flowing over the vanes ca...
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WO/2002/012025 |
A process for optimizing the vibration damping of parts comprises the following essential steps: the part to be analyzed and optimized is suspended and isolated acoustically, while the part is excited at one point and the points of the m...
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WO/2002/003360 |
A simulator, though compact in construction, is capable of simulating a railroad vehicle subjected to right and left steady acceleration, for a prolonged period. A riding comfortability simulator wherein when a controller actuates indivi...
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WO/2001/096828 |
The invention relates to a test device, in particular for testing the interior equipment of a vehicle. Said device comprises at least one base unit and at least one launch device supported on said base unit, the launch device being used ...
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WO/2001/094934 |
A method and apparatus for detecting and monitoring fractures in a structure by monitoring acoustic energy transmitted within the structure by receiving continuously over a period of time electrical signals from a plurality of acoustic t...
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WO/2001/086245 |
The invention relates to a rolling test station (1), comprising a test station support (2), with approach ramps to rotating top-rollers (3, 4, 5, 6) on two separate, parallel roller axles (11, 12). Said rollers serve as contact rollers f...
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WO/2001/033183 |
The present invention concerns an equipment and a method for testing bodies made of a material which expediently has a uniform structure. The present invention may advantageously be used to test carbon electrodes which are to be used in ...
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WO/2001/033182 |
Output-only modal testing of an object. Vibrations are excited in said object and measured by a number of vibration sensitive detectors. From the data of the measurements, a spectral density matrix function is determined. From this densi...
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WO/2001/031309 |
A data collector (40) having a digital signal processing circuit (46) that receives a digitized vibration signal (59), and performs processing steps to isolate high frequency pulses (18) in the digitized vibration signal and quantify ene...
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WO/2001/014845 |
A simulation testing system and method for testing an automobile system or component(s) such as an exhaust system (14) comprises first and second multi-axis simulation tables. One part of the exhaust system is supported by one of the tab...
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WO/2001/001103 |
A vibration testing apparatus using acoustical waves comprises a testing unit including a main enclosure defining a main acoustical cavity and having a baffle provided with a main opening which is aligned with a set of acoustical insulat...
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WO/2000/079236 |
The invention relates to a method for conducting crash tests using a carriage, especially for simulating the collision of a motor vehicle with an obstacle, whereby the deceleration forces of an actual collision are simulated by accelerat...
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WO/2000/071983 |
An apparatus (10, 100) for optimizing the design of a product or component (52) by subjecting the product or component (52) to multiple stimuli, such as temperature, vibration, pressure, ultraviolet radiation, chemical exposure, humidity...
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WO/2000/068654 |
A method and system for remotely inspecting the integrity of a structure. This can be performed by a method creating a vibratory response in the structure from a remote location and then measuring the vibratory response of the structure ...
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WO/2000/051749 |
A shaker table assembly (10) includes a table top plate (12), an insulation layer (14), an understructure support member (16), and at least one vibrator assembly (18), with the insulation layer (14) secured between the table top plate (1...
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WO/2000/039574 |
The invention relates to a method for the quality control of a work piece (1). According to said method, said work piece (1) is incited to vibrate (8), at least one vibration-related parameter is measured (18) and the work piece is appro...
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WO/2000/028802 |
A system and method for identifying characteristics of a physical system (10) applies substantially identical drive ensembles (115, 117) to the physical system (10) and obtains corresponding responses (21) from the physical system (10). ...
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WO/2000/028320 |
The invention concerns a method and an apparatus for measuring the load bearing capacity of a infrastructure platform (10) for transport and industrial floors. The apparatus comprises a wheel (2) borne by a body (3) mounted oscillating o...
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WO/2000/026633 |
A stencil generator (500) for automatically constructing a stencil representative of signals having similar characteristics includes a boundary extractor (542) and a component generator (550). The boundary extractor (542) is operable to ...
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WO/2000/023934 |
A method and system for generating an improved nonlinear system model (216) includes generating a linear system model (210) and using a response (212) therefrom to generate the nonlinear system model (216). A method and system for genera...
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WO/2000/009378 |
In order to detect damages on railway vehicles and/or tracks, sensors are mounted in the railway vehicles, wherein said sensors react to mechanical stress and transform the mechanical energy exerted upon them into high-frequency electric...
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WO/2000/002022 |
The invention relates to a method for continuously monitoring elements or units of any kind, especially elements or units which are subjected to varying operating conditions, for the appearance of changes. According to said method, measu...
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WO/1999/060366 |
The invention relates to a wheel suspension tester comprising a motor which drives one or two shaft systems each comprised of at least one drive shaft and of one eccentric shaft. The drive shaft assigned to the motor is connected to the ...
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WO/1999/054701 |
The multi-level vibration test system has controllable vibration attributes that enable the test engineer to precisely implement avibration environment that is applicable to a wide range of applications and performance characteristics. T...
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WO/1999/054702 |
The invention relates to a system (8) and a method for configuring and/or parameterizing a diagnostic device (4) for objects (3) that are to be tested. The system consists of a first data object (1) with a set of technological test objec...
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WO/1999/054061 |
A shaking machine for subjecting a shaking table to a circular orbit revolution motion by the rotation of a drive shaft, comprising the drive shaft (13) formed at the upper end thereof with an eccentric shaft portion (12) off-centered a ...
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WO/1999/030125 |
The invention relates to a device for carrying out side impact tests on motor vehicle passenger restraint systems. The inventive device is provided with a structure (12) consisting of a seat (14) for a crash dummy (16), an imitation (18)...
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WO/1999/014570 |
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/1999/014749 |
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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