Journal
TRIBOLOGY INTERNATIONAL
Volume 39, Issue 6, Pages 522-527Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2005.03.018
Keywords
non-Gaussian surface; mixed lubrication; skewness; kurtosis; contact area
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In this paper, a computer program was developed to generate non-Gaussian surfaces with specified standard deviation, autocorrelation function, skewness and kurtosis, based on digital FIR technique. A thermal model of mixed lubrication in point contacts is proposed, and used to study the roughness effect. The area ratio, load ratio, maximum pressure, maximum surface temperature and average film thickness as a function of skewness and kurtosis are studied at different value of rms. Numerical examples show that skewness and kurtosis have a great effect on the contact parameters of mixed lubrication. (c) 2005 Elsevier Ltd. All rights reserved.
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