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RESEARCH PAPERS

A Circular Non-Newtonian Fluid Model: Part I—Used in Elastohydrodynamic Lubrication

[+] Author and Article Information
Rong-Tsong Lee, B. J. Hamrock

The Ohio State University, Department of Mechanical Engineering, Columbus, Ohio 43210

J. Tribol 112(3), 486-495 (Jul 01, 1990) (10 pages) doi:10.1115/1.2920285 History: Received March 01, 1989; Online June 05, 2008

Abstract

A circular non-Newtonian fluid model associated with the limiting shear strength was considered. Using this model a modified Reynolds equation was developed which is almost the same as the classical Reynolds equation except for the viscosity term. Results show that the calculation of the central and minimum film thicknesses from the classical Reynolds equation is still valid for pure rolling conditions. The effects on performance of dimensionless load parameter, dimensionless speed parameter, slide/roll ratio, different oils, the limiting shear strength proportionality constant were studied. Such parameters as the pressure profile, the film shape, the coefficient of friction, the dimensionless shear stress at surface a, and the velocitiy contour in the conjunction were considered.

Copyright © 1990 by The American Society of Mechanical Engineers
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