한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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Damage Size Estimation by the Continuous Wavelet Transform of Bending Wave Signals

  • Kim, Ik-Kyu (Dept.of Mechanical Aerospace Engineering, Seoul National University) ;
  • Kim, Yoon-Young (Dept.of Mechanical Aerospace Engineering, Seoul National University)
  • 발행 : 2002.11.01
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초록

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)

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