Paper Title:

Initial Pressure Influence on Pressure Flow Factor Used in Mixed-Lubrication Model

Periodical Applied Mechanics and Materials (Volume 86)
Main Theme Advances in Power Transmission Science and Technology
Edited by Zeyong Yin, Chengyu Jiang, Datong Qin, Peixin Qiao and Geng Liu
Pages 65-69
DOI 10.4028/www.scientific.net/AMM.86.65
Citation Fan Ming Meng et al., 2011, Applied Mechanics and Materials, 86, 65
Online since August 2011
Authors Fan Ming Meng, Yuan Pei Chen
Keywords Initial Pressure, Measured Surface, Mixed Lubrication, Pressure Flow Factor
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The average flow model proposed by Patir and Cheng offers a great convenience for the mixed-lubrication analysis of rough surfaces. The pressure flow factor introduced by Patir and Cheng helps to analyze the influence of roughness on the average pressure and average flow of a lubricant between surfaces. This paper reports how to reasonably choose initial pressure in computing the pressure flow factor. The numerical results show that the pressure distribution and further pressure flow factor value are sensitive to an initial pressure in solving the pressure flow factor, and the initial pressure of a constant value is not suitable for the pressure flow factor calculation for a measured surface with many sample points. Meanwhile, the pressure flow code is demonstrated by the comparison of the pressure obtained numerically with the analytical solution of pressure.