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A system-approach to the elastohydrodynamic lubrication point-contact problemThe classical EHL (elastohydrodynamic lubrication) point contact problem is solved using a new system-approach, similar to that introduced by Houpert and Hamrock for the line-contact problem. Introducing a body-fitted coordinate system, the troublesome free-boundary is transformed to a fixed domain. The Newton-Raphson method can then be used to determine the pressure distribution and the cavitation boundary subject to the Reynolds boundary condition. This method provides an efficient and rigorous way of solving the EHL point contact problem with the aid of a supercomputer and a promising method to deal with the transient EHL point contact problem. A typical pressure distribution and film thickness profile are presented and the minimum film thicknesses are compared with the solution of Hamrock and Dowson. The details of the cavitation boundaries for various operating parameters are discussed.
Document ID
19920052797
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lim, Sang G.
(NASA Lewis Research Center Cleveland, OH, United States)
Brewe, David E.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: STLE Tribology Transactions
Volume: 35
Issue: 2, Ap
ISSN: 0569-8197
Subject Category
Mechanical Engineering
Accession Number
92A35421
Distribution Limits
Public
Copyright
Other

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