Measuring and testing – Vibration – Vibrator
Patent
1990-03-21
1991-08-27
Raevis, Robert
Measuring and testing
Vibration
Vibrator
B06B 300
Patent
active
050423061
ABSTRACT:
An apparatus for simulating a rocket launch environment on a test item undergoing centrifuge testing by subjecting the item simultaneously or separately to vibration along an axis of centripetal force and along an axis perpendicular to the centripetal force axis. The apparatus includes a shaker motor supported by centrifuge arms and a right angle fixture pivotally connected to one of the shaker motor mounts. When the shaker motor vibrates along the centripetal force axis, the vibrations are imparted to a first side of the right angle fixture. The vibrations are transmitted 90 degrees around the pivot and are directed to a second side of the right angle fixture which imparts vibrations perpendicular to the centripetal force axis. The test item is in contact with a third side of the right angle fixture and receives both centripetal-force-axis vibrations and perpendicular axis vibrations simultaneously. A test item can be attached to the third side near the flexible coupling or near the air bag to obtain vibrations along the centripetal force axis or transverse to the centripetal force axis.
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"CAVCTS: Combined Acceleration, Vibration, and Climatic Test System", a mine developed by MBIS of U.S.A. for DRDL of the Indian Government.
P. Adams et al., "The Sandia National Laboratories 8.8-Metre (29-Foot) and 10.7-Metre (35-Foot) Centrifuge Facilities", SAND80-0481, May 1980.
Cericola Fred
Doggett James W.
Ernest Terry L.
Priddy Tommy G.
Chafin James H.
Daniel Anne D.
Moser William R.
Raevis Robert
The United States of America as represented by the Department of
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