双列角接触球轮毂轴承动刚度优化研究  

Optimization Study of Dynamic Stiffness of Double-Row Angular Contact Ball Hub Bearings

作　　者：朱梦宇 杨传猛 邱明[1,2] 张佩楠 褚宜双 ZHU Mengyu;YANG Chuanmeng;QIU Ming;ZHANG Peinan;CHU Yishuang(College of Mechanical and Electrical Engineering,Henan University of Science and Technology,Luoyang 471003,China;Henan Collaborative Innovation Center for Advanced Manufacturing of Mechanical Equipment,Henan University of Science and Technology,Luoyang 471003,China;State Key Laboratory of Advanced Equipment Tribology,Tsinghua University,Beijing 100091,China)

机构地区：[1]河南科技大学机电工程学院,洛阳471003 [2]河南科技大学机械装备先进制造河南省协同创新中心,洛阳471003 [3]清华大学先进设备摩擦学国家重点实验室,北京100091

出　　处：《组合机床与自动化加工技术》2024年第8期175-179,184,共6页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家重点研发计划项目(2020YFB2007303);清华大学摩擦学国家重点实验室开放基金项目(SKLTKF20A03);河南省科技攻关项目(232102220043)。

摘　　要：针对轮毂轴承单元的刚度性能将直接影响汽车的服役性能这一现状,对轮毂轴承刚度特性进行研究,提出了一种基于Romax非标准轮毂轴承动刚度特性分析方法和基于粒子群算法(PSO)的优化设计方法。通过采用Romax软件对非标准的轮毂轴承进行拟静力学仿真,研究了某型号轮毂轴承的预紧量、接触角以及两列球心距对动刚度矩阵的影响规律,并通过理论和试验进行验证。研究结果表明,随着预紧量的增加,轴承动刚度呈现整体上升趋势;随着接触角的增加,径向刚度减小,轴向刚度和角刚度增加;随着两列球心距的增加,径向刚度和轴向刚度略微下降,角刚度增加。以轮毂轴承单元的角刚度最大作为优化目标,对轴承内部结构参数进行优化设计,优化后角刚度增加了14.4%,实现了提高角刚度这一优化目标,为轮毂轴承结构设计和优化提供了方法支撑。Aiming at the current situation that the stiffness performance of wheel bearing units will directly affect the service performance of automobiles,the stiffness characteristics of wheel bearings are investigated,and a method based on the analysis of dynamic stiffness characteristics of non-standard wheel bearings by Romax and an design method based on particle swarm algorithm(PSO)are proposed.By using Romax software to simulate the non-standard wheel bearings,the influence of preload,contact angle and two-row spherical centre distance on the dynamic stiffness matrix of a certain type of wheel bearings is investigated and verified by theory and test.The results show that:with the increase of preload,the dynamic stiffness of the bearing shows an overall increasing trend;with the increase of contact angle,the radial stiffness decreases,and the axial stiffness and angular stiffness increase;with the increase of the two rows of ball distance,the radial stiffness and axial stiffness decrease slightly,and the angular stiffness increases.Taking the maximum angular stiffness of the wheel bearing unit as the optimization objective,the internal structural parameters of the bearing are optimized and designed,and the angular stiffness increases by 14.4%after the optimization,which achieves the optimization objective of increasing the angular stiffness,and provides methodological support for the design and optimization of the wheel bearing structure.

关 键 词：非标准轮毂轴承 动刚度 拟静力学 粒子群优化设计 

分 类 号：TH133.3[机械工程—机械制造及自动化] TG66[金属学及工艺—金属切削加工及机床]