• Title/Summary/Keyword: 립쉬츠 지수

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Damage Detection Using the Lipschitz Exponent Estimation by the Continuous Wavelet Transform ： Applied to Vibration Mode Shapes in a Beam (연속웨이블렛 변환에 의한 립쉬츠 지수 평가를 이용한 결함 진단 ： 보의 진동모드를 대상으로)

  • 홍진철;김윤영;이호철;이용욱
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2001.11b
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    • pp.1182-1188
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    • 2001

  • The objective of this paper is to show the effectiveness of the wavelet transform by means of its capability to estimate the Lipschitz exponent. In particular, we show that the magnitude of the Lipschitz exponent can be used as a useful tool estimating the damage extent. An effective method based on the Lipschitz exponent is proposed and we present the results investigated both numerically and experimentally. The continuous wavelet transform by a Mexican hat wavelet having two vanishing moments is utilized for the estimation of the Lipschitz exponent.

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