Cointegration method for temperature effect removal in damage detection based on Lamb waves

• Autorzy: Dao P. B.

Warianty tytułu

PL

Wykrywanie uszkodzeń przy pomocy fal Lamba - kompensacja wpływu temperatury oparta o metodę kointegracji

• Języki publikacji: EN

Abstrakty

EN

The paper presents an application of the cointegration technique for temperature effect removal in Lamb wave data. The method is based on the analysis of cointegration residuals and stationary statistical characteristics. The experimental results on Lamb wave responses from undamaged and damaged aluminium plates show that the cointegration process can remove undesired temperature effects and accurately detect damage.

PL

Fale Lamba stosowane są do wykrywania uszkodzeń w konstrukcjach płytowych. Wpływ temperatury na amplitudę oraz fazę fal Lamba jest jedną z głównych przeszkód w powszechnym zastosowaniu tej metody w praktyce inżynierskiej. W pracy zastosowano metodę kointegracji do kompensacji wpływu temperatury na propagację fal Lamba. Metoda oparta jest na badaniu stacjonarności sygnałów. Zastosowane podejście pokazane jest na przykładzie wykrywania szczelin zmęczeniowych w płytach aluminiowych. Wyniki pokazują, że metoda kointegracji skutecznie usuwa z fal Lamba wszystkie efekty związane z wpływem temperatury, przyczyniając się do wykrycia badanych uszkodzeń.

Słowa kluczowe

EN

structural health monitoring; Lamb waves; cointegration; temperature effect removal

PL

wykrywanie uszkodzeń; konstrukcja; fale Lamba; kointegracja; kompensacja wpływu temperatury

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2013
• Tom: Vol. 14, No. 3
• Strony: 61--67
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Dao P. B.

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Robotics and Mechatronics, Aleja Mickiewicza 30, 30-059 Krakow, Poland

Bibliografia

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