1.太原理工大学 机械与运载工程学院, 山西 太原 030024
2.煤矿综采装备山西省重点实验室, 山西 太原 030024
李中阳(1995— ),男,山西运城人,在读硕士研究生,研究方向为机械故障诊断。
庞新宇(1976— ),女,山西文水人,博士,副教授,研究方向为机械故障诊断。
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李中阳,庞新宇,闫宗庆等.滚滑运动导致的滚动轴承磨损特性研究[J].机械传动,2021,45(05):10-17.
Li Zhongyang,Pang Xinyu,Yan Zongqing,et al.Study on Wear Characteristic of Rolling Bearing Caused by Rolling-sliding Motion[J].Journal of Mechanical Transmission,2021,45(05):10-17.
李中阳,庞新宇,闫宗庆等.滚滑运动导致的滚动轴承磨损特性研究[J].机械传动,2021,45(05):10-17. DOI: 10.16578/j.issn.1004.2539.2021.05.002.
Li Zhongyang,Pang Xinyu,Yan Zongqing,et al.Study on Wear Characteristic of Rolling Bearing Caused by Rolling-sliding Motion[J].Journal of Mechanical Transmission,2021,45(05):10-17. DOI: 10.16578/j.issn.1004.2539.2021.05.002.
滚滑运动是导致滚动轴承失效的一种特殊运动形式,采用仿真和试验相结合的方法,研究了滚动轴承在滚滑运动下的磨损特性。首先,应用Abaqus有限元软件建立滚滑状态下的滚动轴承有限元仿真模型,得到轴承的摩擦力动态响应。之后,通过滚滑磨损试验台得到轴承运动过程中的摩擦力数据,运用灰色关联分析法得知仿真数据与试验数据的关联度达到0.8以上,因此,仿真所得的摩擦力可作为判断轴承磨损状态变化的依据。在轴承磨损试验中,对润滑油进行颗粒度检测并观察记录了轴承内圈的表面形貌。结果表明,仿真所得摩擦力变化影响油液颗粒度、表面形貌的变化,油液中所含颗粒数目上升与内圈表面产生磨痕作为内圈所受摩擦力变化导致的磨损结果,正反馈于摩擦力,使其幅值不断增大,进一步加剧了轴承的磨损。仿真与试验相结合的方法为准确判断滚滑状态下轴承各点位置磨损特性提供了分析研究的基础。
Rolling-sliding motion is a special motion form which leads to the failure of rolling bearings. In order to study the wear characteristics of rolling bearings under rolling-sliding motion, the method of combining simulation with experiment is adopted. Firstly, Abaqus finite element software is used to establish the finite element simulation model of rolling bearing under rolling-sliding state, the dynamic response of friction force is obtained. Then, the friction data of the bearing in the process of motion are obtained through the rolling wear test bed. By using the Gray Correlation Analysis method,it is concluded that the correlation between the simulation data and the experiment data reached more than 0.8. Therefore,the friction obtained by simulation could be used as the basis to judge the changes of bearing wear state. In the bearing wear experiments, the particle size in the oil is detected and the surface topography of inner ring is recorded. The results show that the change of friction force obtained by simulation affects the change of oil particle size and surface morphology. The increase of particle number in oil and the wear mark on the inner ring surface are the wear results caused by the change of friction force. The positive feedback to the friction force makes its amplitude increase continuously, which further aggravates the wear of the bearing. The method of combining simulation with experiments provides the basis for the analysis and research of the bearing wear characteristics at each point under rolling-sliding state.
滚滑运动滚动轴承有限元分析颗粒度表面形貌
Rolling-sliding motionRolling bearingFinite element analysisParticle sizeSurface topography
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