Gas-Lubricated Porous Bearings—Short Journal Bearings, Steady-State Solution

[+] Author and Article Information
Erh-Rong Wu

Shaker Research Corp., Ballston Lake, N. Y.

Vittorio Castelli

Department of Mechanical Engineering, Columbia University, New York, N. Y.

J. of Lubrication Tech 99(3), 331-337 (Jul 01, 1977) (7 pages) doi:10.1115/1.3453213 History: Received July 13, 1976; Online October 20, 2010


The governing equations for a short porous bearing are derived by adopting Ocvirk’s approximation to the general equations for a finite bearing, which are given in a previous paper (reference [1]). Crank-Nicholson’s numerical method and the analytical-numerical technique, which consists of Green function approximation and the local smoothing by integration for a Fourier series, developed in reference [1] are employed to solve the modified Reynolds equation for a wide range of compressibility number. The solution for a solid-wall bearing is obtained as a special case of a porous bearing. Comparison between two thicknesses of porous layer is included.

Copyright © 1977 by ASME
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