A comparative study of surface waviness models for predicting vibrations of a ball bearing

作     者：LIU Jing WU Hao SHAO YiMin 

作者机构：State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400044 China College of Mechanical Engineering Chongqing University Chongqing 400044 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2017年第60卷第12期

页      面：1841-1852页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51605051&51475053) Chongqing Research Program of Basic Research and Frontier Technology(Grant No.cstc2017jcyjAX0202) 

主　　题：ball bearing surface waviness nonuniform distribution vibrations 

摘      要：Surface waviness models utilized to describe the excitation events in the ball bearings(BABs) play an important role in predicting the vibrations of the ball bearing systems. This work proposes a comparative study on the most relevant existing surface waviness models. One model is named as time-varying displacement(TVD) model, which can only describe the time-varying displacement excitation(TDIE). Another model is named as TVDS model, which can describe the TDIE and time-varying contact stiffness coefficient excitation(TCSE). The influences of the wave number, maximum amplitude, nonuniform distribution on the contact stiffness coefficients are studied, as well as vibrations of the BAB. The comparative results demonstrate that the time-varying displacement and stiffness(TVDS) model can provide a more accurate impulses caused by the uniform and nonuniform surface waviness on the races of the BABs. It also seems that the surface waviness distribution has a significantly influence on vibrations of the BABs.