Damage detection and estimation using wavelet transform

• Autorzy: Ziopaja K. , Pozorski Z.
• Języki publikacji: EN

Abstrakty

EN

In the present paper mechanically loaded 1-D structures and thermally loaded 2-D structures are considered. In case of 1-D members, response signals in the form of displacements are processed, whereas in 2-D structures temperature fields are used. Employing the discrete wavelet transform of the response signals the damage zones are discovered and localized. In case of 1-D structures the Lipschitz exponent was estimated using the local maxima of the wavelet transform modulus as an intensity factor, which served to assess the magnitude of damage.

Słowa kluczowe

EN

damage detection; wavelet transformation; Lipschitz exponent

PL

uszkodzenie; detekcja uszkodzeń; fala elementarna; wykładnik Lipschitza

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Foundations of Civil and Environmental Engineering
• Rocznik: 2006
• Tom: No. 7
• Strony: 413--421
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Ziopaja K.

autor

Pozorski Z.

• Institute of Structural Engineering, Poznan University of Technology, ul. Piotrowo 5, 60-965 Poznań, Poland Tel.: [phone] fax: [phone],

Bibliografia

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• 7. Hong J.-C. et al., Damage detection using the Lipschitz exponent estimated by the wavelet transform: applications to vibration modes of a beam, International Journal of Solid and Structures, 39, (2002)1803--1816.
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• 10. Dems K., Mróz Z., in: Proceedings of the XXI International Congress of Theoretical and Applied Mechanics, Warsaw, (2004).
• 11. Ziopaja K. et al., in: Proc. of the 16th International Conference on