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Article Dans Une Revue Journal of Vibration and Acoustics Transactions of the ASME Année : 2008

Design optimization with an uncertain vibroacoustic model

Résumé

This paper deals with the design optimization problem of a structural-acoustic system in the presence of uncertainties. The uncertain vibroacoustic numerical model is constructed by using a recent nonparametric probabilistic model, which takes into account model uncertainties and data uncertainties. The formulation of the design optimization problem includes the effect of uncertainties and consists in minimizing a cost function with respect to an admissible set of design parameters. The numerical application consists in designing an uncertain master structure in order to minimize the acoustic pressure in a coupled internal cavity, which is assumed to be deterministic and excited by an acoustic source. The results of the design optimization problem, solved with and without the uncertain numerical model, show significant differences.
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Dates et versions

hal-00686133 , version 1 (07-04-2012)

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Evangéline Capiez-Lernout, Christian Soize. Design optimization with an uncertain vibroacoustic model. Journal of Vibration and Acoustics Transactions of the ASME, 2008, 130 (2), pp.Article Number 021001. ⟨10.1115/1.2827988⟩. ⟨hal-00686133⟩
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