Multiple direction vibration fixture

Patent · Mon Dec 31 23:00:00 EST 1990

OSTI ID:867946

Cericola, Fred ^[1]; Doggett, James W ^[1]; Ernest, Terry L ^[1]; Priddy, Tommy G ^[2]

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1. Albuquerque, NM
2. Rockville, MD

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.

• Research Organization: AT & T CORP
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5042306
• OSTI ID: 867946
• Country of Publication: United States
• Language: English

Related Subjects

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90
air
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angle
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arms
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axis
axis perpendicular
bag
centrifuge
centripetal
centripetal-force-axis
connected
contact
coupling
degrees
directed
direction
environment
fixture
flexible
flexible coupling
force
imparted
imparts
item
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motor
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mounts
multiple
near
obtain
perpendicular
pivot
pivotally
pivotally connected
receives
rocket
separately
shaker
simulating
simultaneously
subjecting
supported
testing
third
transmitted
transverse
undergoing
vibrates
vibration
vibrations