轿车轮毂轴承疲劳寿命的计算与分析  

Calculation and Analysis of Fatigue Life of Car Wheel Bearings

作　　者：董晓[1] 陈东照[2] 邓四二[1] 牛荣军[1] 胡广存 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]河南机电职业学院汽车工程系,河南郑州451191

出　　处：《河南科技大学学报（自然科学版）》2014年第5期19-23,108,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省自然科学基金项目(2007460007);国家发改委基金项目(2009-ly-gjfgw-11-1)

摘　　要：基于滚动轴承动力学分析理论,建立了双列角接触球轴承内部元件间相互作用力数学模型。利用双列滚动轴承寿命计算法,建立轿车轮毂轴承寿命计算模型。采用精细积分法和预估-校正Adams-BashforthMoulton多步相结合的算法对双列角接触球轴承作用力模型进行求解,分析轮毂轴承轴向预紧量和轮毂偏移量对轴承寿命的影响。分析结果表明:轴向预紧量的增大和轮毂偏移量由负值变化到正值均会使轴承寿命呈现先增大后减小的趋势,且存在一组最佳轴向预紧量与轮毂偏移量使得轮毂轴承寿命最大。Based on the dynamics analysis of rolling bearings,the mathematical model was established to describe interaction forces between double-row angular contact ball bearing components. The calculation model of car wheel bearing life was built by using double-row bearing life calculation method. Fine integral method and predict-correct Adams-Bashforth-Moulton multi-step method were used to solve the interaction force models. The influences of axial preload and wheel offset on bearing life were investigated. The results show that the wheel bearing life increases first and then decreases when axial preload gains or wheel offset changes from negaive to positive. The largest life is achieved under a set of optimal axial preload and wheel offset.

关 键 词：轮毂轴承 双列角接触球轴承 动力学 寿命 

分 类 号：TH133.331[机械工程—机械制造及自动化]