DocumentCode
1745470
Title
Investigation on interaction of Lamb waves and circumferential notch in pipe by means of wavelet transform
Author
Sun, Zongqi ; Mao, Yiwei ; Jiang, Wenliua ; De Zhang
Author_Institution
Inst. of Acoust., Nanjing Univ., China
Volume
1
fYear
2000
fDate
36800
Firstpage
827
Abstract
Mode analysis of Lamb waves propagating in an aluminum alloyed pipe is carried out using wavelet transform (WT). With the aid of the technique the interaction of Lamb waves with a circumferential notch is investigated. It is found that different Lamb wave modes propagating in the pipe can be distinguished clearly by means of wavelet transformation. Therefore, the mode conversion caused by existence of the notch has been unambiguously observed
Keywords
acoustic signal processing; surface acoustic waves; ultrasonic materials testing; wavelet transforms; Lamb wave; aluminum alloy pipe; circumferential notch; mode conversion; nondestructive evaluation; signal processing; wavelet transform; Acoustic waves; Continuous wavelet transforms; Frequency; Inspection; Oscilloscopes; Probes; Sampling methods; Signal processing; Wavelet analysis; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 2000 IEEE
Conference_Location
San Juan
ISSN
1051-0117
Print_ISBN
0-7803-6365-5
Type
conf
DOI
10.1109/ULTSYM.2000.922670
Filename
922670
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