轴承游隙与残余应力对轴承疲劳寿命的影响
PDF下载 (245)杨永良,李淑欣,程安生,金永生,陈银军.轴承游隙与残余应力对轴承疲劳寿命的影响[J].宁波大学学报(理工版),2023,36(5):11-17.DOI:10.20098/j.cnki.1001-5132.2023.0302
YANG Yongliang,LI Shuxin,CHENG Ansheng,JIN Yongsheng,CHEN Yinjun.Influences of bearing clearance and residual stress on bearing fatigue life[J].Journal of Ningbo University(Natural Science & Engineering Edition),2023,36(5):11-17.DOI:10.20098/j.cnki.1001-5132.2023.0302
| Title: | Influences of bearing clearance and residual stress on bearing fatigue life |
| 作者: | 杨永良, 李淑欣, 程安生, 金永生, 陈银军 |
| Author(s): | YANG Yongliang, LI Shuxin, CHENG Ansheng, JIN Yongsheng, CHEN Yinjun |
| 关键词: | 深沟球轴承; 残余应力; 轴承游隙; 有限元; 疲劳寿命 |
| Keywords: | deep groove ball bearing; residual stress; bearing clearance; finite element; fatigue life |
| 分类号: | TH133.33 |
| DOI: | 10.20098/j.cnki.1001-5132.2023.0302 |
| 文献标识码: | A |
| 摘要: | 滚动轴承的径向游隙与残余应力对轴承寿命有着很大的影响, 为深入理解游隙与残余应力的影响规律, 研究6308深沟球轴承在不同游隙和残余应力下的疲劳寿命. 通过使用三维建模软件SolidWorks建立深沟球轴承的三维模型, 采用ABAQUS有限元分析软件仿真得到深沟球轴承的接触应力分布. 基于接触区的最大应力, 对深沟球轴承的接触疲劳寿命进行预测. 结果表明: 当残余应力一定时, 轴承游隙从4μm增加到16μm, 轴承内外圈滚道与滚动体的接触面积降低, 使轴承寿命平均缩短了24.80%; 当轴承游隙一定时, 残余压应力从0增加到500MPa, 可部分抵消径向载荷所产生的不利影响, 平均应力减小, 轴承寿命平均增加了35.30%. 该模拟结果为轴承寿命的研究提供了一定的理论支撑和依据. |
| Abstract: | The fatigue lives of rolling bearings are significantly influenced by their radial clearances and residual stresses. To better understand such influences, the fatigue lives of 6308 deep groove ball bearings were studied with different clearances and residual stresses. A 3D model of deep groove ball bearing was established by SolidWorks software, and the contact stress distribution of deep groove ball bearing was obtained by using ABAQUS finite element software. Based on the maximum stress in the contact area, the contact fatigue life of deep groove ball bearing was predicted. The results show that when the residual stress is constant, the bearing clearance increases from 4μm to 16μm, the contact area between the raceway of the inner and outer rings of the bearing and the rolling elements decreases, and it leads to reduction of bearing life at 24.80% in average. When the bearing clearance is constant, the residual compressive stress increases from 0 to 500MPa, which can partially offset the adverse effects caused by radial load, the average stress is reduced, and the bearing life is increased by an average of 35.30%. These simulation results provide a certain theoretical support and basis for the study of bearing life. |
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| 备注/Memo: | 收稿日期: 2023－03－01. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（52075271）; 宁波市重大科技任务攻关项目（2022Z050）. 第一作者: 杨永良（1994－）, 男, 安徽阜阳人, 在读硕士研究生, 主要研究方向: 接触疲劳. E-mail: 1392169961@qq.com *通信作者: 李淑欣（1975－）, 女, 宁夏中卫人, 教授, 主要研究方向: 接触疲劳、摩擦磨损性能. E-mail: lishuxin@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
