圆柱滚子轴承滚子对数修形优化研究  

Optimization of roller logarithmic modification for cylindrical roller bearings

作　　者：吕海霆[1] 郭玉飞[2] 魏延刚 许凯[1] 姚金池 LV Haiting;GUO Yufei;WEI Yangang;XU Kai;YAO Jinchi(School of Mechanical Engineering,Dalian University of Science and Technology,Dalian 116052,China;Wafangdian Bearing Group Co.,Ltd.,Wafangdian 116300,China;School of Mechanical Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连科技学院机械工程学院,辽宁大连116052 [2]瓦房店轴承集团有限责任公司,辽宁瓦房店116300 [3]大连交通大学机械工程学院,辽宁大连116028

出　　处：《机电工程》2024年第4期604-612,共9页Journal of Mechanical & Electrical Engineering

基　　金：辽宁省教育厅科学技术研究项目(LJKQZ20222330);辽宁省新能源汽车轻量化铸件数字化设计及智能制造重点实验室资助项目(2022JH13/10200058)。

摘　　要：为了提高轴承的疲劳寿命,采用Romax Designer工程分析软件,在充分考虑径向游隙和内外圈相对倾斜量(影响轴承寿命的主要因素)对修形效果影响的基础上,对某大兆瓦风电机组齿轮箱输出轴轴承进行了对数修形优化分析。首先,对国际标准ISO/TS 16281寿命计算方法进行了简要分析;然后,对不同径向游隙情况下对数修形的效果进行了分析;最后,对不同内外圈相对倾斜量情况下对数修形的效果进行了分析。研究结果表明:以轴承最大接触应力最小为优化目标和以国际标准ISO/TS 16281寿命最长为优化目标的轴承对数修形,其最佳修形量不同,相应的ISO/TS 16281寿命有很大不同;在该轴承的具体条件下,以ISO/TS 16281寿命最长为优化目标的最佳修形凸度量对应的ISO/TS 16281寿命比以最大接触应力最小为优化目标的最佳修形凸度量对应的ISO/TS 16281寿命长2.39%~10.63%;以ISO/TS 16281寿命最长为优化目标的最佳修形凸度量对应的ISO/TS 16281寿命比未修形的ISO/TS 16281寿命长111.47%~1054.88%,建议以ISO/TS 16281寿命最长为优化目标对轴承进行修形优化设计。该研究结果可为滚子类轴承的优化设计提供参考。In order to improve the fatigue life of bearings,Romax Designer engineering analysis software was used,fully considering the main factors affecting bearing life,such as radial clearance and relative inclination of inner and outer rings,to optimize the logarithmic modification of the output shaft bearing of a large MW wind turbine gearbox.Firstly,a brief analysis was conducted on the international standard ISO/TS 16281 life calculation method.Secondly,the effects of logarithmic modification under different radial clearances were analyzed.Finally,the effects of logarithmic modification under different relative inclinations of the inner and outer rings were analyzed.The research results indicate that,under the specific conditions of bearings,the optimal modification convex metric with the longest service life of ISO/TS 16281 as the optimization objective corresponds to a 2.39%~10.63%longer service life of ISO/TS 16281 compared to the optimal modification convex metric with the minimum maximum contact stress as the optimization objective.Moreover,the optimal modified convex metric with the objective of maximizing the lifespan of ISO/TS 16281 corresponds to a lifespan of 111.47%~1054.88%longer than the unmodified ISO/TS 16281.The optimal amount of logarithmic modification for bearings is different between the optimization objective of minimizing the maximum contact stress of bearings and the optimization objective of International Standard ISO/TS 16281 with the longest service life and the resulting differences of the corresponding ISO/TS 16281 service life are significant.It is recommended to optimize the design of bearings with the longest service life of ISO/TS 16281 as the optimization objective.The research results can provide guidance or reference for the optimization design of roller bearings.

关 键 词：滚柱轴承 对数修形 接触应力 疲劳寿命 径向游隙 内外圈相对倾斜量 国际标准ISO/TS 16281 

分 类 号：TH133.33[机械工程—机械制造及自动化]