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Influence of tooth profile modification on spur gear dynamic tooth strainThis paper presents results of dynamic strain gage measurements performed on the NASA gear-noise rig. The experiments were part of a joint research program between NASA and the U.S. Army Research Laboratory to advance the technology of rotorcraft transmissions. Tests were performed on six sets of low contact ratio spur gears with different tooth profile modifications. Results presented include static and dynamic measurements of gear tooth strain taken over a matrix of operating conditions. The results demonstrate that a well-designed tooth profile modification can significantly reduce dynamic loads in spur gears, especially for gears which operate at high speed and under high torque. The two parabolic modifications tested were not as effective as linear modifications, possibly because the modification zone was too long.
Document ID
19950022691
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Oswald, Fred B. (NASA Lewis Research Center Cleveland, OH, United States)
Townsend, Dennis P. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1995
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.15:106952
E-9691
AIAA PAPER 95-3050
NASA-TM-106952
ARL-TR-778
Meeting Information
Meeting: Joint Propulsion Conference and Exhibit
Location: San Diego, CA
Country: United States
Start Date: July 10, 1995
End Date: July 12, 1995
Accession Number
95N29112
Funding Number(s)
PROJECT: DA PROJ. 1L1-62211-A-47-A
PROJECT: RTOP 505-62-36
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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