A Fast Model for Pressure Profile in Rough EHL Line Contacts

[+] Author and Article Information
Xiaolan Ai, Herbert S. Cheng

Center for Engineering Tribology, Northwestern University, Evanston, IL 60208

J. Tribol 115(3), 460-465 (Jul 01, 1993) (6 pages) doi:10.1115/1.2921659 History: Received February 17, 1992; Revised July 01, 1992; Online June 05, 2008


A fast calculation model for the pressure distribution in EHL line contacts between rough surfaces is presented. Comparison between the results obtained from the model calculation and numerical simulation shows that, under heavily loaded conditions, the present model gives very accurate predictions of the pressure distribution for both deterministic and random transverse surface roughness. Since the model is based on the superposition of pressure fluctuations, the applications of this model are restricted to heavily loaded contacts.

Copyright © 1993 by The American Society of Mechanical Engineers
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