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RESEARCH PAPERS

New Results of Traction Force Calculations in Elastohydrodynamic Contacts

[+] Author and Article Information
L. Houpert

SKF Engineering and Research Centre B. V., Nieuwegein, The Netherlands

J. Tribol 107(2), 241-245 (Apr 01, 1985) (5 pages) doi:10.1115/1.3261033 History: Received February 23, 1984; Online October 29, 2009

Abstract

The lubricant shear modulus G and Ree-Eyring shear stress τ0 are determined in this work by using Roelands’, rather than Barus’, relationship for calculating the lubricant viscosity. When using Roelands’ viscosity, elastic effects in the lubricant tend to be negligible, especially when inlet shear heating and displacement of the center of pressure are considered. These results are illustrated by examples in which inlet shear heating has been calculated, or when the lateral traction force obtained by spinning was known. In some cases, elastic effects are indeed present, though much reduced, and this leads to greater values of the lubricant shear modulus. The Ree-Eyring shear stress found when using the Roelands’ viscosity is also greater.

Copyright © 1985 by ASME
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