Detection and localization of delaminations in composite beams using fractional B-spline wavelets with optimized parameters

• Autorzy: Katunin A. , Przystałka P.

Warianty tytułu

PL

Detekcja i lokalizacja rozwarstwień w kompozytowych belkach z wykorzystaniem B-splajnowych falek ułamkowych z optymalizowanymi parametrami

• Języki publikacji: EN PL

Abstrakty

EN

In this paper the method of detection and localization of delaminations in composite layered beams using an algorithm based on the wavelet transform of bending modal shapes of beams was presented. For the basis functions the fractional B-spline wavelets with single- and multi-objective optimization of the values of their parameters were selected. The analysis was carried out basing on the results of numerical simulations. Several cases of the delaminations occurrence with respect to their location on the thickness of the beams, different sizes and geometrical features, were analyzed. Results of the conducted analyzes show the high effectiveness of a method in the task of detection of delaminations and a possibility of its application in industrial conditions.

PL

W pracy przedstawiono metodę detekcji i lokalizacji rozwarstwień w kompozytowych belkach warstwowych z wykorzystaniem algorytmu opartego na transformacji falkowej giętnych postaci własnych drgań belek. Jako funkcje bazowe zastosowano ułamkowe falki B-splajnowe z jedno- i wielokryterialną optymalizacją wartości ich parametrów. Analizę przeprowadzono na wynikach obliczeń numerycznych. Przeanalizowano przypadki występowania rozwarstwień w różnej lokalizacji na grubości płyt oraz przypadki z rozwarstwieniami o różnych rozmiarach i postaciach geometrycznych. Wyniki przeprowadzonych analiz wykazały wysoką skuteczność metody w wykrywaniu rozwarstwień i możliwość jej zastosowania w warunkach przemysłowych.

Słowa kluczowe

EN

detection and localization delaminations; layered composites; fractional B-spline wavelets; optimization

PL

detekcja rozwarstwień; lokalizacja rozwarstwień; kompozyty warstwowe; ułamkowe falki B-splajnowe; optymalizacja

• Wydawca: Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne
• Czasopismo: Eksploatacja i Niezawodność
• Rocznik: 2014
• Tom: Vol. 16, no. 3
• Strony: 391--399
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Katunin A.

• Institute of Fundamentals of Machinery Design Silesian University of Technology ul. Konarskiego 18A, 44-100 Gliwice, Poland

autor

Przystałka P.

• Institute of Fundamentals of Machinery Design Silesian University of Technology ul. Konarskiego 18A, 44-100 Gliwice, Poland

Bibliografia

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