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The Effect of Surface Defect on EHL Point Contact Fan Yujin1, a, Li Zhekun1, Wang Weida1, Han Teng1 1Faculty of mechanical and electrical engineering, kunming university of science and technology, kunming,650050,china afanyujinkmust@163.com Keywords: EHL point contact; EHL lubrication; surface defect; lubrication; asperity Abstract.
Where, load parameter W=1.7×10-6, speed parameter U=3×10-11, material parameter G=4747, the synthesis radius of spherical lubrication surfaces R=5mm, Hertz contact pressure PH=1.0GPa, half width of Herth contact region B=68μm , the radius of circular convex defect and circular concave defect r=10μm, the length of linear convex defect and linear concave defect was 27μm , the height of convex defect and depth of concave defect h=0.05μm, the defect center position was in entrance and at a distance of 27μm from EHL contact center.
Acknowledgement This work is supported by the National Natural Science Foundation of China,No.51168020..
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