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Wear consideration in gear design for space applicationsA procedure is described that was developed for evaluating the wear in a set of gears in mesh under high load and low rotational speed. The method can be used for any low-speed gear application, with nearly negligible oil film thickness, and is especially useful in space stepping mechanism applications where determination of pointing error due to wear is important, such as in long life sensor antenna drives. A method is developed for total wear depth at the ends of the line of action using a very simple formula with the slide to roll ratio V sub s/V sub r. A method is also developed that uses the wear results to calculate the transmission error also known as pointing error of a gear mesh.
Document ID
19890006043
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Akin, Lee S. (California State Univ. Long Beach., United States)
Townsend, Dennis P. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1989
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.15:101457
AVSCOM-TR-88-C-033
NASA-TM-101457
E-4532
AD-A205575
Meeting Information
Meeting: International Power Transmission and Gearing Conference
Location: Chicao, IL
Country: United States
Start Date: April 25, 1989
End Date: April 27, 1989
Sponsors: ASME
Accession Number
89N15414
Funding Number(s)
CONTRACT_GRANT: NAG3-20
PROJECT: DA PROJ. 1L1-62209-A-47-A
PROJECT: RTOP 505-63-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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