A High Performance Journal Bearing With Controlled Elastic Deflection

[+] Author and Article Information
A. K. Tieu, N. O. Freund

Department of Mechanical Engineering, The University of Wollongong, N. S. W. 2500, Australia

J. Tribol 117(4), 702-708 (Oct 01, 1995) (7 pages) doi:10.1115/1.2831540 History: Received September 05, 1990; Revised November 28, 1994; Online January 24, 2008


A thermo-elasto-hydrodynamic analysis of an undercut journal bearing is presented whereby elastic deflection is introduced in a certain area of the bearing surface. The hydrodynamic pressure is computed from the generalized Reynolds equation, which takes into account thermal effects on viscosity. This is accomplished by solving the full energy equation for temperature. The elastic deflection is obtained from the elasticity equation. This study is then complemented with an elasto-hydrodynamic analysis of the full bearing. The controlled elastic deflection increases the bearing load carrying capacity and reduces friction.

Copyright © 1995 by The American Society of Mechanical Engineers
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