重庆大学学报2017，Vol.40Issue(10)：12-22,11.DOI:10.11835/j.issn.1000-582X.2017.10.002
计入粗糙度的深沟球轴承弹塑性接触性能分析
Analysis of elastoplastic contact performances for deep groove ball bearing considering roughness
摘要
Abstract
To reveal the effect of surface roughness on elastoplastic contact performances for a deep groove ball bearing,the contact between the rolling element and inner raceway is reduced as the extremum problem of a quadratic function based on the load distribution of this kind of bearings.The elastoplastic contact model for a rough deep groove ball bearing is modeled,and solved with the proposed semianalytical method so as to obtain the elastoplastic contact performance for the bearing.Numerical results show that the surface roughness yields decrements in the pressure peaks at the two contact endpoints along the inner raceway's width direction.Meanwhile,the maximum contact pressure,yon Mises stress,and residual stress and deformation for the inner raceway are all larger than the corresponding values for the smooth situation.Moreover,the roughness also causes fluctuating distributions of contact pressure and residual deformation,and brings out a stress concentration at the inner raceway's subsurface,which can lead to a decay of the bearing lifetime.关键词
弹塑性接触性能/粗糙度/深沟球轴承/半解析法Key words
elastoplastic contact performance/roughness/deep groove ball bearings/semi-analytical method分类
机械制造引用本文复制引用
浦超,杜明刚,孟凡明,张青..计入粗糙度的深沟球轴承弹塑性接触性能分析[J].重庆大学学报,2017,40(10):12-22,11.基金项目
国家自然科学基金资助项目(51775067) （51775067）
中央高校基本科研业务费专项资金资助项目(106112016CDJZR288805).Supported by National Natural Science Foundation of China (51775067) and the Fundamental Research Funds for the Central Universities (106112016CDJZR288805). （106112016CDJZR288805）
