轴承接触应力计算与塑性屈服安定  

Calculation on Contact Stress and Plastic Yield Stability in Bearings

作　　者：杨咸启[1] 刘胜荣[1] 褚园[1] 钱胜[1] 

机构地区：[1]黄山学院机电工程学院,安徽黄山245041

出　　处：《轴承》2015年第3期7-10,共4页Bearing

基　　金：安徽省教育厅质量工程项目(201101;2014zdjy122)

摘　　要：滚动轴承接触应力分析计算过程比较繁杂,通过理论分析和数值拟合,给出了接触曲率函数与接触椭圆率的关系,利用接触曲率函数直接计算出接触椭圆率,使接触计算变得相对简化。同时,对接触区上关键点的应力状态进行计算,建立了接触材料屈服强度和屈服安定校核方法。对不同的轴承接触模型,给出曲率函数计算公式,并通过具体的实例计算了接触椭圆率。The rolling is complex in analysis and calculation process of bearing contact stress.The relationship be-tween contact curvature function and contact elliptical rate is given through theoretical analysis and numerical fit-ting.The contact elliptical rate is directly calculated by using contact curvature function,which makes the contact calculation relatively simplified.At the same time,the stress state of key points on contact area is calculated.The checking method is established for yield strength and yield stability of contact material.The formula for curvature function is given for different bearing contact models,and the contact elliptical rate is calculated through a specific example.

关 键 词：滚动轴承 接触应力 接触椭圆率 曲率函数 屈服安定 数值拟合 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH123.4