Guided Waves in Steel Rails – Experimental Works and Wavelet Signal Processing

Abstract:

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This paper presents experimental study on dispersive waves propagation in steel rails. The propagation of longitudinal and transverse waves was generated by an impulse hammer and measured in three points. Wavelet transform (WT) and short time Fourier transform (STFT) were applied to analyze the time signals. Analysis of signal by STFT does not provide a proper timefrequency representation due to a fixed size window. The wavelet transform can effectively identify the time-frequency components in waves. The wavelet signal processing of the experimental wave propagation signals is intended to be used for rail flaw detection.

Info:

Periodical:

Edited by:

L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz

Pages:

115-120

DOI:

10.4028/www.scientific.net/KEM.347.115

Citation:

M. Rucka and K. Wilde, "Guided Waves in Steel Rails – Experimental Works and Wavelet Signal Processing", Key Engineering Materials, Vol. 347, pp. 115-120, 2007

Online since:

September 2007

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Price:

$35.00

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