Life Cycle Vibration Analysis Based on EMD of Rolling Element Bearing under ALT by Constant Stress
Bearing is one of critical rotation components in mechanical systems.Many grievous accidents of mechanical systems are chiefly caused by bearing failure.So its significant meaningful for practical application to research failure feature detection and residual life prediction of key rotation components such as bearings.This paper has designed experimental scheme of Accelerated Life Test of rolling element bearings and gained all vibration signals of bearings through their total life,from normal to fault.Then we extracted failure feature from those signals and analyzed its evolving rule in the bearing life cycle based on Empirical Mode Decomposition(EMD).Finally,we have analyzed bearing failure feature in each stage through its life cycle by comparing Frequency Spectrums with Hilbert Marginal Spertrums.
EMD fault diagnosis IMF Hilbert transform fault prediction
Dong Xu Yongchcng Xu Xun Chen Wei Zha Xinglin Li
College of Mechatronical Engineering and Automation National University of Defense Technology Hunan Hangzhou Bearing Test Research Center (HBRC) Zhejiang Hangzhou 310022,China
国际会议
2009 8th International Conference on Reliability,Maintainability and Safety(第八届中国国际可靠性、维修性、安全性会议)
成都
英文
1177-1182
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）