A Thermo-Elasto-Hydrodynamic Study of Journal Bearing With Controlled Deflection

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

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

J. Tribol 115(3), 550-556 (Jul 01, 1993) (7 pages) doi:10.1115/1.2921673 History: Received February 28, 1992; Revised August 09, 1992; Online June 05, 2008


A thermo-elasto-hydrodynamic study of a specially modified journal bearing is included. A numerical simulation is carried out by the finite element method, coupling the deflection of the bearing housing and the pressure derived from the Reynolds equation. In turn, this is coupled through its temperature dependent viscosity terms to the energy equation. Elastic effects are treated in three dimensions. Thermal effects are considered in three dimensions in both the lubricating film and bearing housing with convection specified on the housing boundaries. The bearing is specially modified with an undercut on the bearing housing. It will be demonstrated that by design an appropriate deflection of the undercut can be achieved to improve the load capacity.

Copyright © 1993 by The American Society of Mechanical Engineers
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