首页 | 本学科首页   官方微博 | 高级检索  
     

表面形貌对滑动接触界面摩擦行为的影响
引用本文:杨本杰,刘小君,董磊,王伟,刘焜. 表面形貌对滑动接触界面摩擦行为的影响[J]. 摩擦学学报, 2014, 34(5): 553-560
作者姓名:杨本杰  刘小君  董磊  王伟  刘焜
作者单位:合肥工业大学 摩擦学研究所, 安徽 合肥 230009;合肥工业大学 摩擦学研究所, 安徽 合肥 230009;中北大学 机械与动力工程学院, 山西 太原 030051;合肥工业大学 摩擦学研究所, 安徽 合肥 230009;合肥工业大学 摩擦学研究所, 安徽 合肥 230009
基金项目:国家自然科学基金(51075113, 51375132)和高等学校博士点基金(20120111110026)资助.
摘    要:为了研究表面形貌对拉延形成的滑动接触界面摩擦行为的影响,设计了一种新型的摩擦试验装置.在油润滑条件下,针对具有单向沟槽、规则圆形凹坑和随机表面的铝合金试样,以不同滑动速度与接触压力进行一系列摩擦试验.利用非接触式三维轮廓仪测量出试验前后试样的三维表面形貌参数,并选取表面高度算术平均偏差Sa,表面支承指数Sbi,中心区空体体积Vvc和谷区空体体积Vvv来分析滑动接触界面表面形貌的变化规律.结果表明:规则圆形凹坑表面比单向沟槽表面和随机表面具有较低的摩擦系数;在相对低的接触压力下,3种表面的摩擦系数随着接触压力的增大而减小,但在高的接触压力下,3种表面的摩擦系数随着接触压力的增大而增大;在接触压力一定的情况下,3种表面的摩擦系数对滑动速度有显著依赖性;表面形貌、滑动速度和接触压力是影响滑动接触界面摩擦行为的重要因素.

关 键 词:表面形貌  滑动接触  摩擦  三维表面形貌参数

Effect of Surface Topography on the Interface Tribological Behavior of Sliding Contact
YANG Ben-jie,LIU Xiao-jun,DONG Lei,WANG Wei and LIU Kun. Effect of Surface Topography on the Interface Tribological Behavior of Sliding Contact[J]. Tribology, 2014, 34(5): 553-560
Authors:YANG Ben-jie  LIU Xiao-jun  DONG Lei  WANG Wei  LIU Kun
Affiliation:Hefei University of Technology, Institute of Tribology, Hefei 230009, China;Hefei University of Technology, Institute of Tribology, Hefei 230009, China;North university of China, School of Mechanical and power Engineering, Taiyuan 030051, China;Hefei University of Technology, Institute of Tribology, Hefei 230009, China;Hefei University of Technology, Institute of Tribology, Hefei 230009, China
Abstract:In order to investigate the effect of surface topography on the tribological behavior in sliding contact interface formed during strip drawing, a new friction test device was built. The sample used was aluminum sheet with three kinds of textures, i.e. regular micro-cavity surfac, unidirectional groove surface and random surface. The lubricated friction tests were performed under high contact pressures at different sliding velocities. The three dimensional surface topography of samples before and after friction tests were measured with non-contact optical profilometer, and variations of surface topography of samples were analyzed by using 3D surface parameters of the 3D average surface roughness Sa, surface bearing index Sbi, void volume in centre zone Vvc and void volume in valley zone Vvv. Experimental results show that regular micro-cavity surface had lower friction coefficient than unidirectional groove surface and random surface. At a relatively low contact pressures, the friction coefficient of the three kinds of surfaces decreased with the increase of contact pressure, and at a relatively high contact pressures, the friction coefficient of the three kinds of surfaces increased with the increase of contact pressure. The friction coefficients of the three kinds of surface were significantly dependent on the sliding speed at a certain contact pressure. Surface topography, contact pressure and sliding speed were shown to be crucial factors to variations of tribological behavior in the interface during sliding.
Keywords:surface topography  sliding contact  friction  3D surface parameter
本文献已被 CNKI 等数据库收录!
点击此处可从《摩擦学学报》浏览原始摘要信息
点击此处可从《摩擦学学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号