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Modeling and data analysis of the NASA-WSTF frictional heating apparatus - Effects of test parameters on friction coefficientA theoretical model is being developed jointly by the NASA White Sands Test Facility (WSTF) and the University of California at Santa Barbara (UCSB) to analyze data generated from the WSTF frictional heating test facility. Analyses of the data generated in the first seconds of the frictional heating test are shown to be effective in determining the friction coefficient between the rubbing interfaces. Different friction coefficients for carobn steel and Monel K-500 are observed. The initial condition of the surface is shown to affect only the initial value of the friction coefficient but to have no significant influence on the average steady-state friction coefficient. Rotational speed and the formation of oxide film on the rotating surfaces are shown to have a significant effect on the friction coefficient.
Document ID
19890045564
Document Type
Conference Paper
Authors
Zhu, Sheng-Hu (NASA White Sands Test Facility NM, United States)
Stoltzfus, Joel M. (NASA White Sands Test Facility; Lockheed Engineering and Management Services Co., Inc. Las Cruces, NM, United States)
Benz, Frank J. (NASA White Sands Test Facility Las Cruces, NM, United States)
Yuen, Walter W. (California, University Santa Barbara, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
METALLIC MATERIALS
Meeting Information
Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres(Cambridge)
Distribution Limits
Public
Copyright
Other