Analysis of the Stiffness and Damping Characteristics of an Externally Pressurized Porous Gas Journal Bearing

[+] Author and Article Information
N. S. Rao

Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur, India

J. of Lubrication Tech 99(2), 295-301 (Apr 01, 1977) (7 pages) doi:10.1115/1.3453085 History: Received September 09, 1976; Revised November 15, 1976; Online October 20, 2010


The dynamic behavior of an externally pressurized porous gas journal bearing is analyzed by assuming one dimensional flow through porous wall. A periodic (displacement) disturbance is imposed on the bearing, and the dynamic pressure distribution is determined by small perturbations of the Reynolds equation. Stiffness and damping for various design conditions are calculated numerically using a digital computer and presented in the form of design charts and tables.

Copyright © 1977 by ASME
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