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《China Mechanical Engineering》 2018-07
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Experimental Study on Normal Dynamic Contact Stiffnesses of Trail Interfaces under Lubrications

REN Peng;WANG Lihua;WANG Chunfeng;Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology;  
A fractal contact model of cylindrical micro convex body was established,and the contact of the two planes were replaced by cylindrical asperity contacts in the micro levels,which were more in line with the actual grinding surfaces.In the dynamic signal test system,the dynamic characteristic parameters of the interfaces were tested.The normal dynamic contact stiffnesses were obtained exactly and the influences of loads,speeds,and lubrications on the dynamic stiffnesses were analyzed.The experimental results show that increasing the fluid films,decreasing the sliding speeds and increasing the loads may improve the normal dynamic contact stiffnesses of the trail interfaces.
【Fund】: 国家自然科学基金资助项目(51165013)
【CateGory Index】: TG502
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