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RESEARCH PAPERS

Fast Approach for Calculating Film Thicknesses and Pressures in Elastohydrodynamically Lubricated Contacts at High Loads

[+] Author and Article Information
L. G. Houpert, B. J. Hamrock

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135

J. Tribol 108(3), 411-419 (Jul 01, 1986) (9 pages) doi:10.1115/1.3261220 History: Received March 28, 1985; Online October 29, 2009

Abstract

The film thicknesses and pressures in elastohydrodynamically lubricated contacts have been calculated for a line contact by using an improved version of Okamura’s approach. The new approach allows for lubricant compressibility, the use of Roelands viscosity, a general mesh (nonconstant step), and accurate calculations of the elastic deformations. The new approach is described, and the effects on film thickness, pressure, and pressure spike of each of the improvements are discussed. Successful runs have been obtained at high pressure (to 4.8 GPa) with low CPU times.

Copyright © 1986 by ASME
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