Fault Diagnosis Based on Nonlinear Dynamic Modeling in Rolling Element Bearing Systems

摘要：

　　In order to diagnose the location and size of fault in rolling element bearing system accurately,two-DOF dynamic model and six-DOF dynamic model of fault bearings are built and compared with each other based on the generation mechanism of bearing fault.The models not only consider the influencing factors of variable stiffness caused by bearing clearance,but also introduce a unit resonator to simulate high frequency inherent vibration arising with the bearing fault in six-DOF dynamic model.Dynamic models of localised fault on outer race,inner race and rolling element of rolling element bearing are simulated and analyzed by using Runge-Kutta method.The simulating results are in accordance with experimental results,which proves the accuracy and practicality of the models used in engineering application.

关键词： rolling element bearing localised fault nonlinear dynamic modeling unit resonator

作者: Xiang Li Yongsheng Zhu Zhi Zhou Ning Wang

作者单位: Key Laboratory of Education Ministry for Modern Design & Rotor-Bearing System Xian Jiaotong University Xian 710049, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)

会议地点: 西安

会议语种:英文

页码: 170-175

在线出版日期: 2013-07-01（万方平台首次上网日期，不代表论文的发表时间）