Título:
Mechanical strain monitoring in plates using wavelet coherence based filter of wideband ultrasonic guided waves
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Autor:
Kubrusly, Alan Conci
Braga, Arthur M.B
Pérez Alvarez, Nicolás
Adamowski, Julio Cezar
de Oliveira, Timoteo Francisco
von der Weid, Jean Pierre
Braga, Arthur M.B
Pérez Alvarez, Nicolás
Adamowski, Julio Cezar
de Oliveira, Timoteo Francisco
von der Weid, Jean Pierre
Tutor:
Tipo de documento:
Ponencia
Editor:
Palabras clave:
Strain measurement
Acoustic wave guide
Wavelet
Time-reversal
Acoustic wave guide
Wavelet
Time-reversal
Descriptores:
Sistemas y Control
Año de publicación:
2015
Contenido:
Resumen:
Time reversal or cross-correlation technique can be applied to monitoring the strain in metallic plates by observing the decrease on the time reversal signal's peak. In order to analyze the sensitivity to mechanical strain, the wavelet coherence is applied to wide band guided waves signals. A new time reversed reference signal is obtained by applying a filter based on the continuous wavelet transform. This filter removes the stationary modes, synthesizing a highly sensitive signal which is used as a reference for cross-correlations of the received signals at different strain levels. Experiments revealed that this filter led to a tenfold increase in the sensitivity to longitudinal strain.
Descripción:
Proceedings of the 2015 International Congress on Ultrasonics, 2015 ICU Metz
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Editorial:
Elsevier
EN:
Physics Procedia. v. 70,. 2015, pp. 393 – 397
Financiadores:
Citación:
Kubrusly, A.C, Braga, A.M.B, Pérez Álvarez, N, Adamowski, J.C, de Oliveira, T.F, von der Weid, J.P. "Mechanical strain monitoring in plates using wavelet coherence based filter of wideband ultrasonic guided waves" Physics Procedia, v. 70, 2015, pp: 393-397. https://doi.org/10.1016/j.phpro.2015.08.112.
Citación:
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ISSN:
1875-3892
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Licencia:
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| KBPADV15.pdf | — | 842.98 KB | Adobe PDF |