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Vibroacoustics of a cavity coupled with an uncertain composite panel

Abstract : This paper deals with uncertainties in vibroacoustics of a bounded cavity whose wall is constituted of a rigid wall and of a deformable part constituted of a Composite Sandwich Panel (CSP). Such a CSP has two thin carbon-resin skins and one high stiffness closed-cell foam core. The objectives of this paper is (1) to study the robustness of acoustic response with respect to the dispersion of the CSP induced by the manufacturing process, (2) to develop a predictive mean mechanical model of the vibroacoustic system and (3) to use a nonparametric probabilistic approach for data and model uncertainties of the CSP in order to analyze the robustness of the mean vibroacoustics model in the LF and MF bands to predict internal acoustic level.
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https://hal-upec-upem.archives-ouvertes.fr/hal-00686195
Contributor : Christian Soize <>
Submitted on : Sunday, April 8, 2012 - 2:54:40 PM
Last modification on : Wednesday, February 26, 2020 - 7:06:08 PM
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  • HAL Id : hal-00686195, version 1

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C. Chen, Denis Duhamel, Christian Soize. Vibroacoustics of a cavity coupled with an uncertain composite panel. 6th International Conference on Structural Dynamics, Université de Marne-la-Vallée, Sep 2005, Paris, France. pp.Pages: 859-864. ⟨hal-00686195⟩

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