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《China Mechanical Engineering》 2016-19
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Study on Microscopic Contact Area in One-dimensional Fractal Interface of Interference Fits

Shen Jian;Yi Lixiang;Zhou Dan;Liu Guangfu;Du Xiaodong;Hefei University of Technology;  
Through the analyses of the surface profile based on the simulation fit between impeller and shaft,one-dimensional roughness feature of machined surface was obtained.Surface profile of vertical machining direction had obvious fractal characteristics.A theoretical contact model containing one-dimensional roughness feature and fractal characteristic was established based on modified M-B fractal contact model.And the calculation formulation of the real contact area under different normal contact loads was given.Combined with practical rough surfaces,a solid model with one-dimensional roughness feature and fractal characteristic was built to simulate and analysed by ANSYS.The results verified the calculation formulation.
【Fund】: 国家重点基础研究发展计划(973计划)资助项目(2011CB013400);; 国家自然科学基金资助项目(51405121)
【CateGory Index】: TH45
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