不同粗糙度下织构处理前后端面密封表面的接触压力与摩擦性能分析  

Contact Pressure and Friction Performance Analysis of the Surfaces of End Seal Before and After Textured Treatment at Different Roughnesses

作　　者：谢佳祺 谢良喜[1] 胡腾 陈萌萌 柳毅 XIE Jia-qi;XIE Liang-xi;HU Teng;CHEN Meng-meng;LIU Yi(College of Machinery and Automation,Wuhan University of Science and Technology,Wuhan,Hubei 430081;College of Mechanical Engineering,Hubei University of Automotive Technology,Shiyan,Hubei 442002)

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081 [2]湖北汽车工业学院机械工程学院,湖北十堰442002

出　　处：《液压与气动》2024年第6期7-14,共8页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51375352)。

摘　　要：端面密封表面摩擦性能对叶片式液压摆动油缸的稳定运行有重大影响。对端面密封在不同粗糙度下、织构处理前后的接触压力与摩擦性能展开研究,综合分析粗糙度、织构化处理与端面密封摩擦性能的关系。将MATLAB与COMSOL相结合,建立端面密封有限元模型,仿真分析不同粗糙度、是否织构化处理等不同条件下的接触压力分布;结合对应摩擦实验获得端面密封摩擦力分布,并考虑叶片密封润滑模型,建立摆动油缸总摩擦力计算模型;最后通过摆动油缸实验,验证理论分析的准确性。结果表明:一定预压缩量下,接触压力随粗糙度的增大而增大;油润滑状态下,织构化表面摩擦性能优于未处理表面;所建立的总摩擦力计算模型可用于分析摆动油缸在不同粗糙度等条件下的摩擦性能。The friction performance of end seal surface has great effect on the stable operation of rotary vane actuator.The contact pressure and friction performance of end seal before and after texturing treatment under different roughness were studied,and the relationship between roughness,texturing treatment and friction performance of end seal was comprehensively analyzed.MATLAB and COMSOL were combined to establish the finite element model of end seal to simulate and analyze the contact pressure distribution under different conditions,such as different roughness and whether or not the texturing treatment.The end seal friction distribution was obtained in conjunction with corresponding friction experiments.Considering the vane seal lubrication model,the total friction calculation model of rotary vane actuator was established.Finally,the accuracy of the theoretical analysis was verified through the rotary vane actuator experiments.The results show that under a certain amount of pre-compression,with the increase of roughness,the contact pressure increases gradually.Under the oil lubrication condition,the friction performance of the textured surface is better than that of the untreated surface.The total friction calculation model established can be used to analyze the friction performance of rotary vane actuator under the conditions of different roughness and so on.

关 键 词：叶片式液压摆动油缸 端面密封 表面粗糙度 表面织构 摩擦性能 

分 类 号：TH137[机械工程—机械制造及自动化]