The reliability virtual experiment based on deep groove ball bearing
With the application of explicit dynamics and probability finite element method,reliabilityvirtual experiment of deep groove ball bearing is carried out.Based on self –adaptive mesh module ofthe ANSYS/LS-DYNA,true numerical simulation of the working process is presented after thethree-dimensional finite element bearing model is built.Then,the contact stress and strain amongballs,retainer and inner (outer) race and also the pressure law during the contact process are obtained.As the randomness of manufacture and assemblage tolerance is inevitable,Monte Carlo method isadopted when samples the bearing system.From the random sampling,a large sample data of themaximum contact stress is got and the reliability coefficient is calculated; and the contribution of eachoriginal manufacture error to the reliability sensitivity of the bearing is analyzed.Reliability virtualexperiment offers a theoretical reference to fatigue strength calculation and dynamic optimum designof the bearing system,and the analysis process is easy to be program controlled.
Deep groove ball bearing Explicit dynamics Probability finite element method Monte Carlo Reliability virtual experiment
C.Li Z.L.Sun
School of Mechanical Engineering & Automation,Northeastern University Shenyang,110004,China
国际会议
成都
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）