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RESEARCH PAPERS

Surface Roughness and Structural Inertia in a Mode-Based Mass-Conserving Elastohydrodynamic Lubrication Model

[+] Author and Article Information
S. Boedo

Federal-Mogul Corporation, Ann Arbor, MI 48108

J. F. Booker

Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853

J. Tribol 119(3), 449-455 (Jul 01, 1997) (7 pages) doi:10.1115/1.2833518 History: Received February 09, 1996; Revised July 01, 1996; Online January 24, 2008

Abstract

Detailed formulations are presented for a mass-conserving, mode-based computational model which includes effects of structural inertia and surface roughness. Performance evaluation of a big end connecting rod hearing is shown to require only a few mode shapes, from which it is found that body forces arising from structural motion strongly influence film thickness history at operating engine speeds. Surface roughness effects on nominal film thickness are found to be small, even in assumed regions of partial lubrication.

Copyright © 1997 by The American Society of Mechanical Engineers
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