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RESEARCH PAPERS

Analysis of Noncircular Gas Journal Bearings

[+] Author and Article Information
O. Pinkus

Mechanical Technology Inc., Latham, N. Y.

J. of Lubrication Tech 97(4), 616-623 (Oct 01, 1975) (8 pages) doi:10.1115/1.3452690 History: Received January 21, 1975; Online October 18, 2010

Abstract

The compressible Reynolds Equation under isothermal conditions was solved for finite elliptical and 3-lobe bearings with the load vector acting in any arbitrary direction over the full range of 360 deg. Envelopes of minimum and maximum eccentricity for a given set of operating conditions are provided, the first to yield maximum load capacity, and the second to assist stability by a choice of the highest possible ε. Some values of the spring and damping forces are also given and it is shown that in comparison with conventional bearings, the non-circular designs offer a significant advance in stiffness, particularly for low ε, when instability is most often encountered.

Copyright © 1975 by ASME
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