Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2007.11a
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- Pages.895-902
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- 2007
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- 1598-2548(pISSN)
Fault Diagnosis for Rotating Machinery with Clearance using HHT
HHT를 이용한 간극이 있는 회전체의 고장진단
- Published : 2007.11.15
Abstract
Rotating machinery has two typical faults with clearance, one is partial rub and the other is looseness. Due to these faults, non-linear and non-stationary signals are occurred. Therefore, time-frequency analysis is necessary for exact fault diagnosis of rotating machinery. In this paper newly developed time-frequency analysis method, HHT(Hilbert-Huang Transform) is applied to fault diagnosis and compared with other method of FFT, SFFT and CWT. The results show that HHT can represent better resolution than any other method. Consequently, the faults of rotating machinery are diagnosed efficiently by using HHT.
Keywords
- Rotating machinery;
- Partial rub;
- Looseness;
- Short time fourier transform;
- Continuous wavelet transform;
- Hilbert-Huang transform
- 회전기계;
- 부분마멸;
- 헐거움;
- 단구간 푸리에 변환;
- 연속 웨이블렛 변환;
- 힐버트-후앙 변환;