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Six-Degree-of-Freedom Vibration SuppressorNew system, total-rotor-isolation system (TRIS) employs liquid-inertia vibration-eliminator (LIVE) units, designed to isolate all six degrees of freedom of aircraft-fuselage dynamic response from continuously changing airloads developed by rotor. Vibration suppressor uses liquid mercury to damp vibrations. Results of flight tests indicated at least 95-percent reduction in vibration levels from rotor hub to pilot's seat.
Document ID
19870000413
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Halwes, Dennis R. (Bell Helicopter Textron, Inc.)
Date Acquired
August 13, 2013
Publication Date
September 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-13581
Accession Number
87B10413
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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