Cross-correlation function in identifying head checking defects of the railway rails

• Autorzy: Lesiak P. , Sokołowski A. , Wlazło M.

Warianty tytułu

PL

Funkcja korelacji wzajemnej w identyfikacji wad head checking szyn kolejowych

• Języki publikacji: EN

Abstrakty

EN

The cross-correlation function has been applied to the study of the similarity of the two functions. One of these functions is known and represents a defect type HC (Head Checking) in the railway rail. The second function is unknown and based on cross-correlation function of both functions specifies the parameters of the similarities. These functions correspond to defects whose images have been determined using laser scatterometry method. FFT method has been used to calculate these functions.

PL

Zastosowano funkcję korelacji wzajemnej do badania podobieństwa dwóch funkcji. Jedną z tych funkcji jest znana i stanowi opis wzorca wady head checking (HC) w szynie kolejowej. Druga funkcja jest nieznana. Na podstawie funkcji korelacji wzajemnej obu tych funkcji, określa się parametry ich podobieństwa. Funkcje te reprezentują obrazy wyznaczone doświadczalnie, metodą skaterometrii laserowej. W obliczeniach wykorzystano szybką transformatę FFT.

Słowa kluczowe

EN

cross-correlation; railway rails; defect head checking; laser scatterometry method

PL

korelacja wzajemna; szyny kolejowe; wada head checking; metoda skaterometrii laserowej

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2017
• Tom: Vol. 18, No. 2
• Strony: 65--73
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Lesiak P.

• University of Economics and Innovation in Lublin, Faculty of Transport and Computer Science

autor

Sokołowski A.

• Rzeszow University of Technology, Department of Management

autor

Wlazło M.

• Sunnco KS

Bibliografia

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