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RESEARCH PAPERS

An Efficient Numerical Procedure for Thermohydrodynamic Analysis of Cavitating Bearings

[+] Author and Article Information
D. Vijayaraghavan

Department of Mechanical Engineering, University of Toledo, Toledo, Ohio

J. Tribol 118(3), 555-563 (Jul 01, 1996) (9 pages) doi:10.1115/1.2831574 History: Received February 27, 1995; Revised June 26, 1995; Online January 24, 2008

Abstract

In this paper, an efficient and accurate numerical procedure to determine the thermo-hydrodynamic performance of cavitating bearings is described. This procedure is based on the earlier development of Elrod for lubricating films, in which the properties across the film thickness are determined at Lobatto points and their distributions are expressed by collocated polynomials. The cavitated regions and their boundaries are rigorously treated. Thermal boundary conditions at the surfaces, including heat dissipation through the metal to the ambient, are incorporated. Numerical examples are presented comparing the predictions using this procedure with earlier theoretical predictions and experimental data. With a few points across the film thickness and across the journal and the bearing in the radial direction, the temperature profile is very well predicted.

Copyright © 1996 by The American Society of Mechanical Engineers
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