Shock testing apparatus
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United States of America Patent
Stats
-
Apr 2, 1991
Grant Date -
N/A
app pub date -
Apr 28, 1989
filing date -
Apr 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shock testing apparatus for simulating pyrotechnic shocks comprises an elongate bar suspended for movement in a longitudinal direction, and a pendulum hammer suspended for impact with one end of the bar to excite it into longitudinal resonance. A mounting assembly at the opposite end of the bar allows test components to be mounted in three perpendicular x, y and z orientations relative to the bar. A reversible drive motor raises the hammer to a predetermined height under the control of a control assembly which switches off the motor to allow release of the hammer when the predetermined height is reached. Damping masses are clamped at pre-selected positions along the bar to produce a predetermined shock response spectrum on impact with the hammer.
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