Transient EHL Solutions With Interfacial Slip

[+] Author and Article Information
P. Ehret, D. Dowson, C. M. Taylor

Institute of Tribology, Department of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom

J. Tribol 121(4), 703-710 (Oct 01, 1999) (8 pages) doi:10.1115/1.2834126 History: Received January 28, 1998; Revised November 05, 1998; Online January 24, 2008


Simulations are carried out of an experimental procedure in which a ball impacts a thin layer of lubricant on a disk to form a dimple of entrapped lubricant. Thereafter, pure sliding conditions are imposed to release the entrapped lubricant from the contact. Conditions of slip between the core of the lubricant and the wall are investigated to explain the slower release of the lubricant observed in pure sliding conditions when the ball alone is in motion. A slip value up to 63 percent at 1 GPa enables numerical simulations to match the time of release of the entrapped lubricant measured experimentally.

Copyright © 1999 by The American Society of Mechanical Engineers
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