The Acoustic Emission Diagnose and Analysis of Journal Bearings Inner Ring Looseness Fault by Truck Wheel

摘要：

In this paper, we combine the characteristics of acoustic emission detection with the present condition of truck rolling bearings fault detection .adopting the acoustic emission technique to examine railway freight car s journal bearing inner ring looseness .We put forward the method which wavelet packet analyze and withdraw bearing acoustic emission signals feature vector. Through the energy distribution comparison of inner rings non-looseness and looseness, we extract the ratio between high frequencys internal energy and total energy as the characteristic parameter , which can recognize the inner rings loose fault effectively. Acoustic emission technique is a dynamic detection method, which can get materials important information,fatigue crack propagation,under the dynamic loading conditions. In comparison with the traditional vibration detection, it has the characteristics of the early prediction of bearing fault.

关键词： Rolling bearing Fault diagnose Looseness Wavelet packet analysis

作者: Cai,Haichao Wang,Dongfeng Xu,Qiaoyu Shang,Zhendong

作者单位: School of Electromechanical Engineering,Henan University of Science and Technology,Luoyang,Henan,471 Science and Technology Department, Bearing Institute of LuoYang , LuoYang,HeNan ,471003,china

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 54-57

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）