Non-Newtonian Thermal Elastohydrodynamic Lubrication

[+] Author and Article Information
P. C. Sui

Engine and Vehicle Research, Southwest Research Institute, San Antonio, TX 78228

F. Sadeghi

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. Tribol 113(2), 390-396 (Apr 01, 1991) (7 pages) doi:10.1115/1.2920634 History: Received November 27, 1989; Revised June 21, 1990; Online June 05, 2008


A numerical solution to the problem of thermal and non-Newtonian fluid model in elastohydrodynamic lubrication is presented. The generalized Reynolds equation was modified by the Eyring rheology model to incorporate the non-Newtonian effects of the fluid. The simultaneous system of modified Reynolds, elasticity and energy equations were numerically solved for the pressure, temperature and film thickness. Results have been presented for loads ranging from W = 7 × 10−5 to W = 2.3 × 10−4 and the speeds ranging from U* = 2 × 10−11 to U* = 6 × 10−11 at various slip conditions. Comparison between the isothermal and thermal non-Newtonian traction force has also been presented.

Copyright © 1991 by The American Society of Mechanical Engineers
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