Bearing Faults Diagnosis Based on Teager Energy Operator Demodulation Technique

Author

Li, Hui ; Fu, Lihui ; Zhang, Yuping

Author_Institution

Dept. of Electromech. Eng., Shijiazhuang Inst. of Railway Technol., Shijiazhuang, China

Volume

1

fYear

2009

fDate

11-12 April 2009

Firstpage

594

Lastpage

597

Abstract

A new demodulation approach to fault diagnosis of bearing based on Teager energy operator (TEO) technique is presented. Firstly, TEO can tracks the modulation energy of the vibration signal and estimates the instantaneous amplitude. Secondly, the envelope spectrum is applied to the instantaneous amplitude. Therefore, the character of the bearing faults can be recognized according to the envelope spectrum. The experimental results show that envelope spectrum based on Teager energy operator technique can effectively diagnose the faults of the bearing.

Keywords

acoustic signal processing; demodulation; fault diagnosis; machine bearings; vibrations; Teager energy operator technique; bearings; demodulation technique; envelope spectrum; fault diagnosis; vibration signal; Amplitude estimation; Demodulation; Fault detection; Fault diagnosis; Fourier transforms; Signal analysis; Signal processing; Signal resolution; Time frequency analysis; Wavelet analysis; Teager Energy Operator; Vibration; bearing; fault diagnosis; signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on

Conference_Location

Zhangjiajie, Hunan

Print_ISBN

978-0-7695-3583-8

Type

conf

DOI

10.1109/ICMTMA.2009.421

Filename

5203042