Wavenumber identification technique for axial-symmetric structures
| Autor: | Giovanni Tufano, Droz, C., Bareille, O., Zine, A. -M, Pluymers, B., Desmet, W., Ichchou, M. |
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| Přispěvatelé: | Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS), KU Leuven, European Project: 675441,H2020,H2020-MSCA-ITN-2015,VIPER(2016), Desmet, W, Pluymers, B, Moens, D, Rottiers, W, Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne (ENISE)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
wavenumber domain
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] inhomogeneous wave correlation method [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] VIPER VIPER GA 675441 |
| Zdroj: | International Conference on Noise and Vibration Engineering and USD 2018 International Conference on Noise and Vibration Engineering and USD 2018, KU Leuven, Sep 2018, Leuven, Belgium Scopus-Elsevier |
| Popis: | This paper investigates the broadband vibro-acoustic and dynamic behavior of different structures, such as flat and curved panels and cylindrical shells. The aim of this work is to investigate propagation and dispersion features through the analysis of the wavenumber domain. The technique used to investigate the vibro-acoustic behavior is a wave propagation based technique, implemented to obtain the propagative and evanescent waves using a harmonic force excitation. The employed techniques are used to obtain the harmonic displacement field, given as primary input for the wavenumber domain analysis. To deeply investigate the dispersion features, a Discrete Fast Fourier Transform (DFFT) technique is used. The whole displacement field could be obtained by experimental tests or by numerical simulations; in our case, it is calculated using a classical Finite Element Analysis (FEA), by a commercial Finite Element package, or by an in-home algorithm, developed in a commercial numerical computing software. no ISSN ispartof: pages:4627-4636 ispartof: Proceedings of the International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) pages:4627-4636 ispartof: International Conference on Noise and Vibration Engineering (ISMA 2018) location:Leuven, Belgium date:17 Sep - 19 Sep 2018 status: Published online |
| Databáze: | OpenAIRE |
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