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RESEARCH PAPERS

Porous Wall Gas Lubricated Journal Bearings: Theoretical Investigation

[+] Author and Article Information
E. P. Gargiulo

E. I. du Pont de Nemours & Co., Engineering Research & Development Division, Engineering Technology Laboratory, Wilmington, Del. 19898

J. of Lubrication Tech 101(4), 458-465 (Oct 01, 1979) (8 pages) doi:10.1115/1.3453395 History: Received February 12, 1979; Online October 20, 2010

Abstract

A model has been developed to compute the dynamic stiffness and damping properties of externally pressurized, porous-wall, gas journal bearings which includes the effects of journal rotation and eccentricity. This paper presents the derivation of the governing equations and the perturbation analysis used to find the unsteady characteristics. Typical nondimensional performance curves are found and the influences of seven governing parameters are discussed. A companion paper describes an experimental investigation of porous journal bearings.

Copyright © 1979 by ASME
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