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Title: Multiple direction vibration fixture

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.

Inventors:
 [1];  [1];  [1];  [2]
  1. (Albuquerque, NM)
  2. (Rockville, MD)
Publication Date:
Research Org.:
AT & T CORP
OSTI Identifier:
867946
Patent Number(s):
US 5042306
Assignee:
United States of America as represented by Department of Energy (Washington, DC) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
multiple; direction; vibration; fixture; apparatus; simulating; rocket; launch; environment; item; undergoing; centrifuge; testing; subjecting; simultaneously; separately; axis; centripetal; force; perpendicular; shaker; motor; supported; arms; angle; pivotally; connected; mounts; vibrates; vibrations; imparted; transmitted; 90; degrees; pivot; directed; imparts; contact; third; receives; centripetal-force-axis; attached; near; flexible; coupling; air; bag; obtain; transverse; air bag; pivotally connected; axis perpendicular; flexible coupling; motor mount; /73/

Citation Formats

Cericola, Fred, Doggett, James W., Ernest, Terry L., and Priddy, Tommy G. Multiple direction vibration fixture. United States: N. p., 1991. Web.
Cericola, Fred, Doggett, James W., Ernest, Terry L., & Priddy, Tommy G. Multiple direction vibration fixture. United States.
Cericola, Fred, Doggett, James W., Ernest, Terry L., and Priddy, Tommy G. Tue . "Multiple direction vibration fixture". United States. https://www.osti.gov/servlets/purl/867946.
@article{osti_867946,
title = {Multiple direction vibration fixture},
author = {Cericola, Fred and Doggett, James W. and Ernest, Terry L. and Priddy, Tommy G.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

Patent:

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