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Adjustable-Torque Truss-Joint MechanismThreaded pin tightened or loosened; tedious trial-and-error procedure shortened. Mechanism joining strut and node in truss structure preloaded to desired stress to ensure tight, compressive fit preventing motion of strut during loading or vibration. Preload stress on stack of Belleville spring washers adjusted by tightening or loosening threaded Belleville-washer-alignment pin. Pin turned, by use of allen wrench, to adjust compression preload on Belleville washers and adjusts joint-operating torque.
Document ID
19930000599
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bush, Harold G.
(NASA Langley Research Center, Hampton, VA.)
Wallsom, Richard E.
(Lockheed Engineering and Sciences Co.)
Date Acquired
August 16, 2013
Publication Date
September 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 9
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
LAR-14899
Accession Number
93B10599
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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