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RESEARCH PAPERS

Inertia Effects on Film Rupture in Hydrodynamic Lubrication

[+] Author and Article Information
Terukazu Ota, Hiroyuki Yoshikawa

Department of Machine Intelligence and Systems Engineering, Tohoku University, Aoba-ku, Sendai 980 Japan

Makoto Hamasuna, Takeshi Motohashi, Soshu Oi

Graduate School of Engineering, Tohoku University, Sendai, Japan

J. Tribol 117(4), 685-690 (Oct 01, 1995) (6 pages) doi:10.1115/1.2831536 History: Received September 23, 1993; Revised April 20, 1994; Online January 24, 2008

Abstract

A perturbation analysis was made to study the effect of inertia on the film rupture in hydrodynamic lubrication using a modified Reynolds equation. A simplified boundary condition at film rupture proposed by Ota (1987) was employed. The theory was extended to investigate the wave number of the film rupture surface and to investigate the effect of gas bubbles included in the lubricant. Numerical calculations were carried out for a cylinder-plane bearing and are compared with previous experimental and numerical data. The effects of inertia on film rupture characteristics are clarified and the present numerical results are found to be in good agreement with earlier experimental data.

Copyright © 1995 by The American Society of Mechanical Engineers
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