Application of wavelet transform in analysis of guided wave propagation signals for damage detection in a steel plate - Publikacja - MOST Wiedzy

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Application of wavelet transform in analysis of guided wave propagation signals for damage detection in a steel plate

Abstrakt

The paper presents results of experimental investigations on damage detection using guided wave propagation technique. The tested specimen was a steel plate with a defect in the form of a rectangular notch. Lamb waves were excited by a PZT actuator and sensed by a laser vibrometer. Since reflections from damage in registered signals are often masked by measurement noise, for identification of time of reflections from damage, continuous wavelet transform (CWT) was used. Obtained results indicated that application of wavelet signal processing enabled precise reconstruction of reflected wavefront from damage.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Opublikowano w:
Diagnostyka nr 16, strony 43 - 48,
ISSN: 1641-6414
Język:
angielski
Rok wydania:
2015
Opis bibliograficzny:
Zima B., Rucka M.: Application of wavelet transform in analysis of guided wave propagation signals for damage detection in a steel plate// Diagnostyka. -Vol. 16., iss. 2 (2015), s.43-48
Weryfikacja:
Politechnika Gdańska

wyświetlono 111 razy

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