有限差分法数值分析碳纤维增强聚醚醚酮滑动轴承材料的润滑特性  

Numerical analysis of lubrication characteristics of carbon fiber-reinforced polyetherketone sliding bearing materials using the finite difference method

作　　者：安俊卿 张宝君 刘思航 梁泰贺 雷明凯[1] AN Jun-qing;ZHANG Bao-jun;LIU Si-hang;LIANG Tai-he;LEI Ming-kai(Surface Engineering Laboratory,school of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China;Sinoseal Holding Co.,Ltd.,Chengdu 610045,China)

机构地区：[1]大连理工大学材料科学与工程学院表面工程实验室,大连116024 [2]中密控股股份有限公司,成都610045

出　　处：《炭素》2024年第4期39-44,共6页Carbon

基　　金：国家自然科学基金企业创新发展联合基金重点项目(U21B2078)

摘　　要：采用有限差分法对碳纤维增强聚醚醚酮滑动轴承材料的性能进行了数值计算,重点分析碳纤维增强轴承材料及其表面织构对流体润滑特性的影响。结果表明,碳纤维增强聚醚醚酮轴承材料在性能上明显优于聚醚醚酮材料,Sommerfeld数由1.8提升至4.1,轴承与轴径间摩擦系数由0.009降至0.006,碳纤维降低了PEEK滑动轴承的摩擦损失。表面织构碳纤维增强聚醚醚酮轴承的Sommerfeld数增至4.8,摩擦系数稳定在0.006,偏位角达到38°。随着织构凸起高度和数量的增加,滑动轴承的润滑特性进一步增强。Numerical simulations were conducted using the finite difference method to evaluate the performance of carbon fiber-reinforced polyether ether ketone(CF/PEEK)sliding bearing materials,with a focus on analyzing the effects of carbon fiber reinforcement and surface texture on fluid lubrication characteristics.The results demonstrate that CF/PEEK bearing materials exhibit significantly superior performance compared to PEEK materials.The Sommerfeld number increased from 1.8 to 4.1,and the friction coefficient between the bearing and shaft decreased from 0.009 to 0.006,indicating that carbon fiber effectively reduces friction losses in PEEK sliding bearings.For surface-textured CF/PEEK bearings,the Sommerfeld number further increased to 4.8,with the friction coefficient stabilizing at 0.006,and the attitude angle reaching 38°.As the height and number of texture protrusions increased,the lubrication performance of the sliding bearing was further enhanced.

关 键 词：碳纤维增强聚醚醚酮 滑动轴承 Sommerfeld数 表面织构 

分 类 号：TH133.31[机械工程—机械制造及自动化]