角接触球轴承的应力场与相对疲劳寿命分析  

Analysis on Stress Field and Relative Fatigue Life of Angular Contact Ball Bearings

作　　者：程超[1] 汪久根[1] 王爱林[1] 洪玉芳[1] 

机构地区：[1]浙江大学机械工程学系,杭州310027

出　　处：《轴承》2013年第3期1-4,15,共5页Bearing

基　　金：国家自然科学基金资助项目(50775202);浙江省自然科学基金重点项目(Z1100475)

摘　　要：基于弹性接触理论及Ioannides及Harris疲劳寿命计算模型,分析了球径变化、沟曲率半径系数和径向游隙对角接触球轴承的Hertz接触应力、零件表层的Mises应力场及轴承疲劳寿命的影响。研究结果表明,角接触球轴承零件的表层裂纹源在沿轴承零件的周向平面内;轴承疲劳寿命随球径的增大而增大,随沟曲率半径系数和径向游隙的增大而减小。Based on the elastic contact theory and fatigue life computational model of Ioannides and Harris, the effects of ball diameter, groove curvature radius coefficient and radial clearance on the Hertz contact stress, Mises stress field of parts surface and fatigue life of angular contact ball bearings are analyzed. The results show that fatigue cracks originate in the circumferential plane for the parts of angular contact ball bearings, the fatigue life of bearings increases with the increase of ball diameter and decreases with the increase of groove curvature radius coefficient and radial clearance.

关 键 词：角接触球轴承 Mises应力场 疲劳寿命 

分 类 号：TH133.331[机械工程—机械制造及自动化]