Thermal Elastohydrodynamic Lubrication of Non-Newtonian Fluids With Rough Surfaces

[+] Author and Article Information
J. M. Wang

Synektron Corporation, Portland, OR 97223

V. Aronov

Illinois Institute of Technology, Chicago, IL 60616

J. Tribol 119(4), 605-612 (Oct 01, 1997) (8 pages) doi:10.1115/1.2833856 History: Received November 17, 1995; Revised June 26, 1996; Online January 24, 2008


The characteristics of thermal elastohydrodynamic lubrication by non-Newtonian fluids for rough surfaces is investigated theoretically. The general Reynolds equation for two-sided striated roughness lubricated by power law fluids is established using a perturbation approach. New correction factors for the pressure flow and the shear flow are derived; these factors integrate both lubricant rheology and surface roughness characteristics. A more effective numerical algorithm is adopted to obtain the solutions for wide ranges of operating conditions. Observations and discussion lead to further understanding of the various interactions among different factors in a elastohydrodynamic lubrication process.

Copyright © 1997 by The American Society of Mechanical Engineers
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