Volume 7 Number 9 (Sep. 2012)
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JCP 2012 Vol.7(9): 2120-2127 ISSN: 1796-203X
doi: 10.4304/jcp.7.9.2120-2127

Acoustic Emission Signal Feature Extraction in Rotor Crack Fault Diagnosis

Kuanfang He1, Jigang Wu2, Guangbin Wang2
1Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiantan, 411201, China
2Engineering Research Center of Advanced Mine Equipment, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China


Abstract—On the rotor comprehensive fault simulation testbed, characteristics of acoustic emission signal of different crack rotors in various depth and conditions are analyzed by the acoustic emission extraction experiment. The noiseeliminating method of the acoustic emission signal was researched by the wavelet packet technique, the characteristics of acoustic emission signal of the rotor crack was also obtained for fault diagnosis in this paper. The advantages of acoustic emission technique have been highlighted in the early period crack fault diagnosis compared to the vibration method of crack fault diagnosis. The diagnosis results were shown to be quite clear, reliable and accurate.

Index Terms—Rotor crack, acoustic emission, wavelet packet, fault diagnosis.

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Cite: Kuanfang He, Jigang Wu, Guangbin Wang, "Acoustic Emission Signal Feature Extraction in Rotor Crack Fault Diagnosis," Journal of Computers vol. 7, no. 9, pp. 2120-2127, 2012.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Monthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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