RESEARCH PAPERS: Production Engineering Papers

A Three-Dimensional Model of Surface Asperities Developed Using Moment Theory

[+] Author and Article Information
W. R. DeVries

Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, Mich. 48109

J. Eng. Ind 104(4), 343-348 (Nov 01, 1982) (6 pages) doi:10.1115/1.3185840 History: Received June 04, 1982; Online July 30, 2009


Methods are presented to construct a three-dimensional model of a composite surface asperity based on profile measurements taken in different directions. The theory used to accomplish this is based on least squares estimation to find a locus equation for the moment properties measured experimentally in five directions. The asperity model is developed based on this locus of moment properties of height and slope, which are used to interpolate in different directions to generate the base and sides of an asperity. Two examples are used to show how these techniques can be used. One is a face milled cast iron surface and the other a surface ground specimen of low carbon steel.

Copyright © 1982 by ASME
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