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http://dx.doi.org/10.9725/kstle.2009.25.5.342

EHL Analysis for Rough Surface with Directional Roughness  

Kim, Tae-Wan (School of Mechanical Engineering, Pukyong National University)
Cho, Yong-Joo (School of Mechanical Engineering, Pusan National University)
Publication Information
Tribology and Lubricants / v.25, no.5, 2009 , pp. 342-347 More about this Journal
Abstract
This paper presents EHL analysis for rough surfaces with directional roughness. Three different types of surfaces with pure longitudinal roughness, pure transversal roughness and isotropic roughness are generated. For the surfaces with longitudinal and transversal roughness, two cases are analyzed; one is a case of asperity peak on a spherical contact center, the other one is of valley on a spherical contact center. As a results, the surface with pure transversal roughness gives higher pressure and smaller minimum film thickness than the surface with pure longitudinal roughness, and the surface with isotropic roughness has similar EHL behavior with the surface with pure transversal roughness.
Keywords
EHL analysis; longitudinal roughness; transversal roughness; isotropic roughness;
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