A Variable Wave Speed Technique for the Steady-State Analysis of Low-Clearance Gas Bearings

[+] Author and Article Information
J. W. White

The University of Tennessee, Knoxville, Tenn.

J. of Lubrication Tech 99(3), 339-344 (Jul 01, 1977) (6 pages) doi:10.1115/1.3453216 History: Received March 05, 1976; Revised June 07, 1976; Online October 20, 2010


A method is described which utilizes an artificial fluid viscosity as a means of adjusting the pressure wave speed in asymptotic steady-state analysis of gas bearings. The approach is shown to be useful for producing steady numerical solutions of low-clearance bearings with minimum computation. The technique is first developed for a rigid boundary step bearing of infinite width and then extended to the finite width case by a semi-implicit solution procedure. Last, the method is shown to be useful for the analysis of foil bearings in which case the pressure wave speed is “tuned” to that of the foil wave so as to produce an optimum computational approach to steady state.

Copyright © 1977 by ASME
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