Dual signal processing approach for Lamb ...
Document type :
Partie d'ouvrage
Title :
Dual signal processing approach for Lamb wave analysis
Author(s) :
Assaad, Jamal [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Grondel, Sebastien [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
El Youbi, Faysal [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Moulin, Emmanuel [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Delebarre, Christophe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Grondel, Sebastien [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
El Youbi, Faysal [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Moulin, Emmanuel [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Delebarre, Christophe [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Book title :
Springer Proceedings in Physics
Publication date :
2009
ISBN :
978-3-540-89104-8
English keyword(s) :
Damage Detection
Structural Health Monitoring
Lamb Wave
Short Time Fourier Transform
Multimode Signal
Structural Health Monitoring
Lamb Wave
Short Time Fourier Transform
Multimode Signal
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
The identification of Lamb modes is still the most difficult step in the process of damage detection. Therefore, the aim of this paper is to use a dual signal processing approach in order to better identify Lamb modes. ...
Show more >The identification of Lamb modes is still the most difficult step in the process of damage detection. Therefore, the aim of this paper is to use a dual signal processing approach in order to better identify Lamb modes. This approach is based on the use of a relationship between the Short Time Fourier Transform (STFT) and the Two Dimensional Fourier Transform (2DFT). Indeed, one direct theoretical relationship between their amplitudes is given in the case of both monomode and multimode signals. This relationship is then numerically verified by a two dimensional finite element method. This system is suitable for defect detection and can be easily implemented for real application to structural health monitoring.Show less >
Show more >The identification of Lamb modes is still the most difficult step in the process of damage detection. Therefore, the aim of this paper is to use a dual signal processing approach in order to better identify Lamb modes. This approach is based on the use of a relationship between the Short Time Fourier Transform (STFT) and the Two Dimensional Fourier Transform (2DFT). Indeed, one direct theoretical relationship between their amplitudes is given in the case of both monomode and multimode signals. This relationship is then numerically verified by a two dimensional finite element method. This system is suitable for defect detection and can be easily implemented for real application to structural health monitoring.Show less >
Language :
Anglais
Audience :
Non spécifiée
Popular science :
Non
Source :
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