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Correlation of rheological characteristics of lubricants with transmission efficiency measurementsThe power efficiency of a helicopter transmission has been analyzed for 11 lubricants by looking at the Newtonian and non-Newtonian properties of the lubricants. A non-Newtonian property of the lubricants was the limiting shear strength proportionality constant. The tests were performed on a high-pressure, short-time shear strength analyzer. A power efficiency formula that was obtained by analyzing the Newtonian and non-Newtonian properties of the lubricants is presented in detail.
Document ID
19850022030
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jacobson, B. O. (Lulea Univ. Cleveland, OH, United States)
Hamrock, B. J. (NASA Lewis Research Center)
Hoeglund, E. (Lulea Univ.)
Date Acquired
September 5, 2013
Publication Date
January 1, 1985
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.15:86988
NASA-TM-86988
E-2531
Report Number: NAS 1.15:86988
Report Number: NASA-TM-86988
Report Number: E-2531
Meeting Information
Meeting: Intern. Tribology Conf.,
Location: Tokyo
Country: Japan
Start Date: July 8, 1985
End Date: July 10, 1985
Sponsors: Japan Society of Lubrication Engineers
Accession Number
85N30342
Funding Number(s)
PROJECT: RTOP 505-33-62
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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