Corrosion degradation monitoring of ship stiffened plates using guided wave phase velocity and constrained convex optimization method - Publikacja - MOST Wiedzy

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Corrosion degradation monitoring of ship stiffened plates using guided wave phase velocity and constrained convex optimization method

Abstrakt

The study presents an experimental investigation on the corrosion degradation level assessment using nondestructive wave-based methods. The degradation level of ship structural elements has been assessed in two different ways. The first one is based on the spectral decomposition and zero-crossing incorporated reconstruction of the dispersion curve approach of the antisymmetric Lamb wave mode and the best matching of the theoretical solution. The second approach was based on searching for a solution to the convex optimization problem. In the first case, the plate thickness is assumed to be constant and the phase velocity reconstructed curve is fitted to match the best solution in the all considered frequency domain. In the second case, the assumption about the varying plate thickness is set and the optimal thickness distribution resulting in any times of wave flight is defined.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
OCEAN ENGINEERING nr 253,
ISSN: 0029-8018
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Zima B., Wołoszyk K., Garbatov Y.: Corrosion degradation monitoring of ship stiffened plates using guided wave phase velocity and constrained convex optimization method// OCEAN ENGINEERING -Vol. 253, (2022), s.111318-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.oceaneng.2022.111318
Źródła finansowania:
  • IDUB
Weryfikacja:
Politechnika Gdańska

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