Abstract:
A flexible printed circuit cabling system for a crash test dummy includes at least one centralized data-receiving unit. The flexible printed circuit cabling system also includes a plurality of sensors arranged remotely from the at least one centralized data receiving unit to generate electrical signals of data pertaining to a vehicular collision. The flexible printed circuit cabling system further includes a plurality of flexible printed circuit cables electrically interconnecting the sensors and the at least one centralized data receiving unit to transmit the electrical signals from the sensors to the at least one centralized data receiving unit.
Abstract:
An apparatus for driving a seat testing machine that accurately tests the durability of the seat element, which includes a twisting assembly for providing both rubbing and impact engagements with the seat element, one common power source to activate a first mechanism to reciprocate the seat element along a first axis, and activate a second mechanism to reciprocate the twisting assembly about a rotary axis; and vertical loading and lifting mechanisms to repeatedly engage and disengage the twisting assembly from the seat element under a gravitational loading while simulating the varying weight of the occupant.
Abstract:
An apparatus for conducting impact events for use in conjunction with a hzontal accelerator includes a base having tracks attached to the top thereof; a seat slidably attached to the tracks, the seat capable of moving independently of the base and along the tracks, the seat for positioning a test dummy before and during an impact event; a barrier positioned and arranged adjacent one end of the base for impacting the test dummy, the barrier having load cells for generating signals in response to the impact between the test dummy and the barrier; an attenuator for impacting the seat and accelerating the seat up to the velocity of the base when the base is accelerated by the horizontal accelerator; and an anti-reverse mechanism for retaining the seat after the seat is accelerated up to the velocity of the horizontal accelerator. In operation, a test dummy is positioned on the seat and secured, if desired. The seat is slidably positioned on the base the desired distance from the barrier. The horizontal accelerator is fired, in accordance with a predetermined acceleration profile. As the base accelerates, the seat contacts the attenuator wherein the dummy begins to slide off the seat and impact the barrier. The load cells in the barrier generate signals in response to the impact. After the seat contacts the attenuator, the anti-reverse mechanism retains the seat adjacent the barrier.
Abstract:
A separation device for a colliding G simulation apparatus for vehicles etc. including a hydraulic separation device provided between an output shaft of an actuator and a mock vehicle, an accumulator as a hydraulic pressure source for operating the separation device, a control unit of the separation device, a servo valve and a control unit for controlling the actuator, and a system control unit for dispatching a control signal to the control unit of the actuator. The separation device includes a nut separation actuator, a separation nut, separation signal wiring, a bolt, an electromagnetic valve and a piston. The separation nut is separated and a connection to the bolt is released by a force acting on the piston.
Abstract:
An impact testing apparatus includes a main frame mounted on a main frame base. There is a pair of spaced-apart guide columns with an impact hammer slidably mounted thereon. A lifting beam is slidably mounted on the guide columns above the impact hammer and can be raised by a hoist to the top of the main frame. There is a specimen base adjacent the main frame base. There is a movable joint between the specimen base and the main frame base, whereby the main frame base is isolated from shock resulting from impact of the hammer on the specimen base. Preferably the joint is occupied by a non-rigid member, such as an elastomeric member. Preferably there is adjustable means for tensioning the guide columns. There may be an electromagnetic latch between the lifting beam and the impact hammer.
Abstract:
Apparatus for simulating a side impact vehicle crash comprises a test dolly assembly slidably mounted for longitudinal movement on a slidably mounted sled carriage accelerated by a pressure differential firing means. The test dolly assembly is essentially stationary on a track fixedly mounted on the sled carriage assembly until a ram on the sled carriage assembly strikes an impact block on the test dolly assembly.
Abstract:
A housing, simulating the configuration of a container such as a glass bottle, includes an internal chamber for supporting a center post having an axial bore for receiving a biaxial accelerometer electrically connected to circuitry for detecting and recording the magnitude of the impact force applied externally to the housing. In a method for simulating the impact forces applied to glass bottles as they are conveyed in a bottling operation impact forces are applied at any angle to the housing and are transmitted to the accelerometer. The accelerometer is actuated to generate an output signal expressed in terms of the X and Y vectors of the impact force to the electrical circuitry. The output signal is processed to indicate the magnitude of the applied impact force.
Abstract:
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 having sample defects in order to establish reference signatures. The covering to be controlled is subjected at a plurality of test points (Pi) to at least one impulse shock test in order to determine the corresponding measurement signatures (MSi). A comparison of the measurement signatures with the reference signatures makes is possible to identify defects by resemblance criteria. Application to the control of coatings of traffic roads such as motorways for motor vehicles and runways for aircraft.
Abstract:
A generator for dynamic loading of a mine lining simulates an unstable ground structure, such as a "bump" of the formation roof by an explosion of an explosive. The generator /3/ comprises a cylinder /6/ with a piston /7/, the said piston functioning as a percussion member. The bottom of the cylinder /6/ is provided with symmetrical chambers /10/ to place an explosive. The explosive is batched to each of chambers /10/ through holes /8, 9/ made in the flank of the cylinder /6/. Holes /8, 9/ are bored at an angle enabling gravitational filling of the chamber /10/ with an explosive already after initial spragging of the lining section /1/ under test between the floor /2/ and the generator /3/ abutting the roof /5/ of the test-stand. The cylinder /6/ is closed with a limiter /12/ of the stroke of the piston. Between the piston /7/ and the limiter /12/ of its stroke there is a shock-absorbing washer /13/. In the limiter /12/ there are additional holes for release of powder gases.
Abstract:
The present invention relates to an insulation diagnosis technique for the coil of a generator or the like, especially a strike diagnosis apparatus for diagnosing the good or bad condition of insulation by comparing, directly or after a suitable processing signal, the magnitude of a strike signal applied to the generator's coil with a reference level, or by making a frequency analysis of the strike signal.