Influence of Turbulence on Performance Characteristics of the Tilting Pad Thrust Bearing

[+] Author and Article Information
J. W. Capitao

General Electric Co., Mechanical Drive Turbine Products Department, Fitchburg, Mass.

J. of Lubrication Tech 96(1), 110-116 (Jan 01, 1974) (7 pages) doi:10.1115/1.3451879 History: Received January 08, 1973; Online October 18, 2010


The influence of fluid film turbulence on the performance of centrally-pivoted tilting pad thrust bearings was analyzed. Major features of the analysis are: (1) today’s two predominant “engineering” turbulent flow theories are delineated and their quantitative predictions compared; (2) a spherical pad profile was assumed, and (3) an equal area technique was used in the finite difference equations. The results confirmed earlier predictions of increases in power loss and load capacity when compared to a laminar solution. Also, no significant differences were found between the results predicted by the two predominant turbulent flow theories. Power loss, load capacity, and hydrodynamic oil flow are given for 13, 15, and 17 in. sizes. Comparisons of laminar and turbulent numerical results are presented.

Copyright © 1974 by ASME
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