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Study and Application of Acoustic Emission Testing in Fault Diagnosis of Low-Speed Heavy-Duty Gears
Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Chao Yang District, Beijing, 100124, China
School of Mechanical & Electrical Engineering, Beijing University of Chemical Technology, Chao Yang District, Beijing, 100029, China
Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie, 514-8507, Japan
Tang Shan Iron & Steel CO. LTD., Tangshan, Hebei, China
* Author to whom correspondence should be addressed.
Received: 21 December 2010; in revised form: 31 December 2010 / Accepted: 31 December 2010 / Published: 10 January 2011
Abstract: Most present studies on the acoustic emission signals of rotating machinery are experiment-oriented, while few of them involve on-spot applications. In this study, a method of redundant second generation wavelet transform based on the principle of interpolated subdivision was developed. With this method, subdivision was not needed during the decomposition. The lengths of approximation signals and detail signals were the same as those of original ones, so the data volume was twice that of original signals; besides, the data redundancy characteristic also guaranteed the excellent analysis effect of the method. The analysis of the acoustic emission data from the faults of on-spot low-speed heavy-duty gears validated the redundant second generation wavelet transform in the processing and denoising of acoustic emission signals. Furthermore, the analysis illustrated that the acoustic emission testing could be used in the fault diagnosis of on-spot low-speed heavy-duty gears and could be a significant supplement to vibration testing diagnosis.
Keywords: acoustic emission; low-speed and heavy-duty; gear fault diagnosis; redundant second generation wavelet
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Cite This Article
MDPI and ACS Style
Gao, L.; Zai, F.; Su, S.; Wang, H.; Chen, P.; Liu, L. Study and Application of Acoustic Emission Testing in Fault Diagnosis of Low-Speed Heavy-Duty Gears. Sensors 2011, 11, 599-611.
Gao L, Zai F, Su S, Wang H, Chen P, Liu L. Study and Application of Acoustic Emission Testing in Fault Diagnosis of Low-Speed Heavy-Duty Gears. Sensors. 2011; 11(1):599-611.
Gao, Lixin; Zai, Fenlou; Su, Shanbin; Wang, Huaqing; Chen, Peng; Liu, Limei. 2011. "Study and Application of Acoustic Emission Testing in Fault Diagnosis of Low-Speed Heavy-Duty Gears." Sensors 11, no. 1: 599-611.