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RESEARCH PAPERS

The Use of Line and Point Contacts in Determining Lubricant Rheology Under Low Slip Elastohydrodynamic Conditions

[+] Author and Article Information
D. M. Heyes, C. J. Montrose

Vitreous State Laboratory, Catholic University of America, Washington, D.C. 20064

J. of Lubrication Tech 105(2), 280-287 (Apr 01, 1983) (8 pages) doi:10.1115/1.3254594 History: Received August 18, 1979; Online November 13, 2009

Abstract

A theoretical study has been made of the elastohydrodynamic small strain behavior of lubricants in line and point contacts. The model for the lubricants is more realistic than those proposed to date and involves a reformulation of the Maxwell model in terms of a Volterra convolution integral equation. In addition to being more physically appealing, the approach can be easily generalized to describe coupled structural and shear relaxation of a nonexponential nature. The calculations predict that certain mineral oils change from exhibiting compressional viscoelastic to elastic behavior at maximum contact pressures and rolling speeds of order 0.5 GPa and 1.0 m/s.

Copyright © 1983 by ASME
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