TY - GEN
T1 - A simple method to calculate contact factor used in average flow model
AU - Meng, F. M.
AU - Wang, Q Jane
AU - Hua, Diann
AU - Liu, Jordan
PY - 2010/6/24
Y1 - 2010/6/24
N2 - The average flow model proposed by Patir and Cheng offers a great convenience for the analysis of rough surfaces in lubrication. The contact factor introduced by Wu and Zheng helps to solve a difficulty in local film evaluation using the average flow model. This paper reports a simple method to calculate the contact factor. Method validation is demonstrated by the comparison of the contact factors for Gaussian surfaces obtained with the present method and the fitting formula of Wu and Zheng. The proposed method can not only easily compute the contact factor values for Gaussian surfaces, it can also be used for those of non-Gaussian and measured surfaces, especially those with unknown probability density distribution of the roughness height.
AB - The average flow model proposed by Patir and Cheng offers a great convenience for the analysis of rough surfaces in lubrication. The contact factor introduced by Wu and Zheng helps to solve a difficulty in local film evaluation using the average flow model. This paper reports a simple method to calculate the contact factor. Method validation is demonstrated by the comparison of the contact factors for Gaussian surfaces obtained with the present method and the fitting formula of Wu and Zheng. The proposed method can not only easily compute the contact factor values for Gaussian surfaces, it can also be used for those of non-Gaussian and measured surfaces, especially those with unknown probability density distribution of the roughness height.
UR - http://www.scopus.com/inward/record.url?scp=77953723504&partnerID=8YFLogxK
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U2 - 10.1115/IJTC2009-15173
DO - 10.1115/IJTC2009-15173
M3 - Conference contribution
AN - SCOPUS:77953723504
SN - 9780791848951
T3 - Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
SP - 483
EP - 485
BT - Proceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
T2 - 2009 ASME/STLE International Joint Tribology Conference, IJTC2009
Y2 - 19 October 2009 through 21 October 2009
ER -