Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2011.04a
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- Pages.582-587
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- 2011
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- 1598-2548(pISSN)
Proposition and Application of Novel DWT Mother Function for AE signature
AE 신호를 위한 새로운 DWT 기저함수 제안 및 적용
- Published : 2011.04.27
Abstract
Acoustic Emission(AE) is widely used for early detection of faults for rotating machinery in these days because of its high sensitivity. AE signal has to need for transferring to low frequency range for the spectrum analysis included the fault mechanism. In transferring process, we lose a lot of fault information caused by unusable signal processing method. Discrete Wavelet Transform(DWT) is a method of signal processing for AE signatures, but the pattern of its mother function is not optimized with AE signals. So, we can lose the fault information when we want to use the DWT for AE signal. Therefore, in this paper, we will propose a novel pattern for DWT mother function, which is optimized with AE signals. And it will be applied to compare the results of DWT by daubechie and novel pattern.
Keywords
- Discrete Wavelet Transform;
- Acoustic Emission;
- Envelope Analysis;
- Fault Detection;
- Condition Monitoring
- 이산 웨이블릿 변환;
- 음향방출;
- 포락처리;
- 결함 검출;
- 상태 감시;