RESEARCH PAPERS: Design Automation Papers

Multiple Design Objectives in Hydrodynamic Journal Bearing Optimization

[+] Author and Article Information
S. M. Metwalli, G. S. A. Shawki, M. O. A. Mokhtar, M. A. A. Seif

Mechanical Engineering Department, Cairo University, Egypt

J. Mech., Trans., and Automation 106(1), 54-60 (Mar 01, 1984) (7 pages) doi:10.1115/1.3258561 History: Received June 10, 1983; Online November 19, 2009


A novel approach is presented to optimize the finite journal bearing performance under steady loading conditions. Closed form expressions representing the behavior of the bearing as explicit functions of the design variables are utilized. Different competing objectives are assumed to suit various design applications. A method of multiplying objectives and raising to different exponents has been adopted. The basic competing objectives are minimum power loss, maximum-minimum film thickness, minimum side leakage, minimum temperature rise, and minimum bearing size. A journal bearing design procedure for optimum performance is thus devised for the selection of optimum bearing length, clearance, and oil viscosity. A numerical example is also presented.

Copyright © 1984 by ASME
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