Nonuniform Temperature in Non-Newtonian Compressible Fluid Film Lubrication of Rollers

[+] Author and Article Information
Dhaneshwar Prasad, Punyatma Singh

Department of Mathematics, Indian Institute of Technology Kanpur, Kanpur, India

Prawal Sinha

Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G8

J. Tribol 110(4), 653-658 (Oct 01, 1988) (6 pages) doi:10.1115/1.3261708 History: Received July 30, 1987; Online October 29, 2009


A theoretical analysis of heavily loaded rigid cylindrical roller bearings lubricated by a thin compressible fluid film, considering cavitation, is presented. The lubricating fluid is assumed to follow the non-Newtonian power law model and the consistency as well as density varies exponentially with pressure and temperature. The modified Reynolds and energy equations (adiabatic case) for a compressible power law fluid are obtained and are solved simultaneously. It is observed that the compressible fluid film pressure is comparatively higher than the incompressible one whereas this trend is reversed in case of temperature. Moreover, consistency and density variations, especially in the pressure peak region, are quite significant.

Copyright © 1988 by ASME
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