NASA NTRS · 19930000599
Adjustable-Torque Truss-Joint Mechanism
Abstract
Threaded 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.
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Bush, Harold G., Wallsom, Richard E.. 1993-09-01. Adjustable-Torque Truss-Joint Mechanism. https://ntrs.nasa.gov/citations/19930000599
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