On the Stability of Porous Journal Bearings

[+] Author and Article Information
T. F. Conry, C. Cusano

University of Illinois at Urbana-Champaign, Urbana, Ill.

J. Eng. Ind 96(2), 585-590 (May 01, 1974) (6 pages) doi:10.1115/1.3438368 History: Received June 06, 1973; Online July 15, 2010


This investigation deals with the stability characteristics of lubricated porous journal bearings. Using the short-bearing approximation and a fully cavitated film, the regions of stability are determined by simulation of the nonlinear differential equations of motion. Stability curves are presented for values of the design variable Φ from 0.0001 to 0.02. As Φ increases, the area of the region of stability decreases. For values of Φ greater than 0.001, the value of the dimensionless speed tends to decrease with increasing static eccentricity ratios at the threshold of stability.

Copyright © 1974 by ASME
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