Demodulation of Gear Vibration Signals for Fault Detection

摘要：

In this paper,we propose a novel method for identification of gear crack from the low-frequency modulated vibration signal.Hilbcrt transform is used to present the envelope of the modulated vibration signal to show the modulating frequency.The new adaptive joint timefrequency signal representation is proposed to extract the demodulated characteristic frequencies from the Hilbert transform envelope of the vibration signal.The adaptive spectrogram matches the meshing frequency and its harmonics, the coupling frequency, the carrier frequency, and their sidebands in the vibration signal by the optimized wavelet The simulated and experimental vibration signals are used to test the proposed method.The results show the applicability and effectiveness of the proposed method for gear crack detection.

关键词： Fault detection adaptive joint time-frequency Signal demodulation

作者: Hanxin Chen Ming J.Zuo

作者单位: School of Mechanical and Electrical Engineering Wuhan Institute of Technology Wuhan.China Department of Mechanical Engineering University of Alberta Edmonton,Canada

会议类型: 国际会议

会议名称: 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)

会议地点: 成都

会议语种:英文

页码: 826-830

在线出版日期: 2009-08-24（万方平台首次上网日期，不代表论文的发表时间）