Compressible Elastohydrodynamic Lubrication of Rough Surfaces

[+] Author and Article Information
F. Sadeghi, Ping C. Sui

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. Tribol 111(1), 56-62 (Jan 01, 1989) (7 pages) doi:10.1115/1.3261879 History: Received January 21, 1988; Online October 29, 2009


A complete numerical solution of compressible elastohydrodynamic lubrication of rough surfaces has been obtained. The Newton-Raphson technique is used to solve the simultaneous system of modified compressible Reynolds and elasticity equations. The effects of various loads, surface pattern, and roughness parameter have been investigated. Results have been presented for loads ranging from W = 2.0452 × 10−5 to W = 2.3 × 10−4 at the speed of U = 1.0 × 10−11 . The results indicate that the compression effects are significant and cannot be neglected.

Copyright © 1989 by ASME
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