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Robust design optimization for uncertain complex dynamical systems

Abstract : This paper deals with the design optimization problem of a structural -acoustic system in 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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Contributor : Christian Soize Connect in order to contact the contributor
Submitted on : Sunday, April 8, 2012 - 11:21:52 AM
Last modification on : Saturday, January 15, 2022 - 4:02:23 AM
Long-term archiving on: : Monday, July 9, 2012 - 2:20:25 AM


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  • HAL Id : hal-00686158, version 2



Evangéline Capiez-Lernout, Christian Soize. Robust design optimization for uncertain complex dynamical systems. International Conference on Noise and Vibration Engineering (ISMA2006), Katholieke Universiteit Leuven, Sep 2006, Leuven, Belgium. pp.Pages: 4041-4054. ⟨hal-00686158v2⟩



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