摘要
针对磨削加工和电化学光整加工后的表面微观几何形貌对液膜厚度影响的实验结果,结合表面微观几何形貌的构型分析,基于流体润滑理论,采用有限差分法进行了数值分析。分析结果表明:表面微造型使表面几何形态呈凹凸不平状,有助于动压效应的形成;在同样的条件下,与磨削加工相比,电化学光整加工后表面微观几何结构可产生更强的动压效应,有利于润滑;使微观几何结构在摩擦副表面分布,可使液膜压力分布不均,使摩擦副表面的膜压具有波动性,形成泵送效应。
Experimental results effects of micro-topography of surfaces obtained by grinding and electrochemical finishing process(ECFP)on liquid film thickness was analyzed using finite on difference numerical method by combining with the confo- rmational analysis of the micro-topography of surfaces based on fluid lubrication theory. The results show that:The surface micro-modelling make the surface geometry to uneven shape which is helpful for forming the dynamic pressure effect;On the same conditions,comparing with the grinding process,the micro-topography of the surfaces obtained by ECFP can provide stronger dynamic pressure effect which is favorable for the lubrication;Distributed the micro-geometries on the surface make the liquid film pressure to uneven distribution,the liquid film pressure on the surface are volatile and is helpful for forming the pumping effect.
作者
江丽汗.冬德尔汗
阿达依.谢尔亚孜旦
Jianglihan Dongdeerhan;Adayi Xieeryazidan(School of Mechanical Engineering, Xinjiang University, Xinjiang Urumqi 830047, China)
出处
《机械设计与制造》
北大核心
2019年第4期66-69,共4页
Machinery Design & Manufacture
基金
新疆维吾尔自治区自然科学基金(2014211A011)
关键词
表面微观几何形貌
动压效应
泵送效应
电化学
光整
Surface Micro-Topography
Dynamic Pressure Effect
Pumping
Electrochemistry
Finishing
