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Damage Detection in a Beam by the Wavelet Transform

웨이블렛을 이용한 보의 결함진단

  • Published : 2000.02.01

Abstract

This paper presents a new wavelet-based structural diagnostic technique. A continuous Gabor wavelet transform is shown to a very effective method in detecting damage in a beam. The beam is excited by a broad-band excitation force. For satisfactory results, the selection of an optimal wavelet is very important though the wavelet transform outperforms existing techniques such as the Wigner-Ville distribution. A specific example is given in a solid circular cylinder with a small defect

Keywords

Damage Detection;Wavelet;Wave Propagation;Dispersion Relation

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