A reduced order model for nonlinear vibroacoustic problems
1 Institut FEMTO-ST - Département de Mécanique Appliquée - 24 Chemin de l’Epitaphe - 25000 Besancon - France
2 Institut préparatoire aux études dingénieurs de Nabeul (IPEIN) - Groupe Dynamique des Structures - 8000 Mrezgua - Nabeul - Tunisie
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This work is related to geometrical nonlinearities applied to thin plates coupled with fluid-filled domain. Model reduction is performed to reduce the computation time. Reduced order model (ROM) is issued from the uncoupled linear problem and enriched with residues to describe the nonlinear behavior and coupling effects. To show the efficiency of the proposed method, numerical simulations in the case of an elastic plate closing an acoustic cavity are presented.
© Owned by the authors, published by EDP Sciences, 2012