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RESEARCH PAPERS

Effects of Asperities in Elastohydrodynamic Lubrication

[+] Author and Article Information
M. Kaneta

Department of Mechanical Engineering, Kyushu Institute of Technology, Kita-Kyushu, Japan

A. Cameron

Lubrication Laboratory, Department of Mechanical Engineering, Imperial College, London, S.W.7, U.K.

J. of Lubrication Tech 102(3), 374-378 (Jul 01, 1980) (5 pages) doi:10.1115/1.3251550 History: Received June 21, 1979; Online November 17, 2009

Abstract

Optical interferometry was used to study rough surfaces under lubricated point contact. Three dimensional “asperities” of chromium were sputtered onto a steel ball which was run against a smooth glass plate under both rolling and sliding. The experimental results were compared with the various published theories. The film thicknesses found in sliding are different from those observed in pure rolling, which are nearly equal to the theoretical values. Film thickness collapse occurred when the central film thickness/half asperity height ratio (λ ratio) reached a critical value.

Copyright © 1980 by ASME
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