Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2002.11b
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- Pages.617-622
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- 2002
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- 1598-2548(pISSN)
The Detection of Gear Failures Using Wavelet Transform
웨이브렛변환을 이용한 기어결함의 진단
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Park, Sung-Tae
(RRC) ;
- Gim, Jae-Woong (RRC) ;
- Yang, Jianguo (R.R.C.School of Automobile Engineering, Harbin Institute of Technology)
- Published : 2002.11.01
Abstract
This paper presents that the Wavelet Transform can be used to detect the various local defects in a gearbos. Two types of defects which are broken tooth and localized wear, are experimented and the signals are collected by accerometer and analyzed. Because of the complecity of the signals acquired from sensor, it is needed to identify the interesting signal. The natural frequencies of shafts and the gear mesh frequency(GMF) is calculated theretically. DWT, CWT and the aplication are used to extract a gear-localized defect feature from the vibration signal of the gearbox with the defective gear. The results shows the transform is more effective to detect the failures than the Fourier Transform.