Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2002.11a
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- Pages.364.1-364
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- 2002
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- 1598-2548(pISSN)
Damage Size Estimation by the Continuous Wavelet Transform of Bending Wave Signals
굽힘파 신호의 연속 웨이블렛 변환을 이용한 결함 크기 평가
- Kim, Ik-Kyu (Dept.of Mechanical Aerospace Engineering, Seoul National University) ;
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Kim, Yoon-Young
(Dept.of Mechanical Aerospace Engineering, Seoul National University)
- Published : 2002.11.01
Abstract
This work is concerned with the damage size estimation by using propagating bonging wave signals in a beam. To this end, we apply the continuous wavelet transforms to the incident waves and the reflected waves from a small damage in a long cylindrical beam. In particular, we propose to use the relative magnitudes of the two kinds of waves along the ridges in the wavelet transformed time-frequency planes. (omitted)