A Mixed Lubrication Model Applicable to Bearing/Seal Parts of Hydraulic Equipment

[+] Author and Article Information
Atsushi Yamaguchi

Department of Mechanical Engineering, Yokohama National University, Yokohama, 240, Japan

Hiroshi Matsuoka

R & D Department, Nippondenso Co. Ltd., Aichi, 448, Japan

J. Tribol 114(1), 116-121 (Jan 01, 1992) (6 pages) doi:10.1115/1.2920849 History: Received August 07, 1990; Revised May 01, 1991; Online June 05, 2008


A mixed lubrication model applicable to the bearing/seal parts is presented which enables forecasts of both friction and flow rate. The model is based on the combination of the Greenwood-Williamson model for nonlubricated rough surfaces in contact and Patir and Cheng’s mean flow model. It introduces an adsorbed film model and includes effects of EHL and cavitation. Regardless of the assumptions introduced, the model agrees well with experimental results of parallel sliding surfaces lubricated with liquids ranging from mineral oils to water.

Copyright © 1992 by The American Society of Mechanical Engineers
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