A Dynamic System Model for Lubricated Sliding Wear and Running-In

[+] Author and Article Information
Y. Z. Hu

Tsinghua University, Technical University of Norway, Trondheim, Norway

Na Li

Department of Mechanical Engineering, South-West Jiao Tong University

Kristian To̸nder

Division of Machine Design, Technical University of Norway, N-7034 Trondheim, Norway

J. Tribol 113(3), 499-505 (Jul 01, 1991) (7 pages) doi:10.1115/1.2920651 History: Received February 15, 1990; Revised July 03, 1990; Online June 05, 2008


Running-in should be regarded as a self-adapting and convergent process of a dynamic system. The effect of surface roughness on dynamic behavior of a lubricated sliding wear system has been explored in this paper. With the RMS σ of a composite roughness considered as the characterizing parameter of the mating surfaces, two state equations: the wear equation concerning the effect of roughness and the rate of equation concerning changes in RMS, have been established. The optimum roughness of a wear system corresponding to the minimum wear rate and the equilibrium roughness produced by the running-in, the stability of the wear system and its critical load capacity can be predicted and simulated by this dynamic model.

Copyright © 1991 by The American Society of Mechanical Engineers
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