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Gear noise, vibration, and diagnostic studies at NASA Lewis Research CenterThe NASA Lewis Research Center and the U.S. Army Aviation Systems Command are involved in a joint research program to advance the technology of rotorcraft transmissions. This program consists of analytical as well as experimental efforts to achieve the overall goals of reducing weight, noise, and vibration, while increasing life and reliability. Recent analytical activities are highlighted in the areas of gear noise, vibration, and diagnostics performed in-house and through NASA and U.S. Army sponsored grants and contracts. These activities include studies of gear tooth profiles to reduce transmission error and vibration as well as gear housing and rotordynamic modeling to reduce structural vibration and transmission and noise radiation, and basic research into current gear failure diagnostic methodologies. Results of these activities are presented along with an overview of near-term research plans in the gear noise, vibration, and diagnostics area.
Document ID
19910068188
Document Type
Conference Paper
Authors
Zakrajsek, J. J. (NASA Lewis Research Center Cleveland, OH, United States)
Oswald, F. B. (NASA Lewis Research Center Cleveland, OH, United States)
Townsend, D. P. (NASA Lewis Research Center Cleveland, OH, United States)
Coy, J. J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
MECHANICAL ENGINEERING
Meeting Information
IME International Conference(Cambridge)
Distribution Limits
Public
Copyright
Other