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RESEARCH PAPERS: Power Transmission Gearing Papers

Elastohydrodynamic Lubrication of Involute Gears

[+] Author and Article Information
A. Gu

Mechanical Technology Incorporated, Latham, N. Y.

J. Eng. Ind 95(4), 1164-1170 (Nov 01, 1973) (7 pages) doi:10.1115/1.3438265 History: Received July 24, 1972; Online July 15, 2010

Abstract

A criterion is suggested for the application of the steady state elastohydrodynamic theories to the analysis of involute gear contacts. The criterion is based on a comparison of two physical time scales characterizing the system. It is found that for heavily loaded gears the unsteadiness effect may be important. A mean-viscosity method using a composite pressure-viscosity model for the lubricant is introduced for contact zone temperature calculation. An example of involute gears is given for the computation of elastohydrodynamic contact variables based on quasi-steady state assumption. It is found that the surface temperature rise in the tooth tip contact is much higher than that in the pitch line contact.

Copyright © 1973 by ASME
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