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Robustesse des modèles numériques du comportement vibroacoustique des véhicules vis-a-vis des incertitudes de modélisation

Abstract : The design of cars is nowadays mainly based on numerical simulations. In oder to improve the robustness of numerical predictions, one introduces a probabilistic model of uncertainties. The uncertainty modelling is based on the use of a non-parametric approach. Application of this non-parametric approach to vehicle-uncertainties modelling shows the sensitivity of the vibroacoustic frequency responses to structural, cavity and vibroacoustic coupling uncertainties and, the sensitivity of the structural modes to structural uncertainties. Since a vehicle is a strongly heterogeneous medium, some parts are more sensitive to uncertainties than others.
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https://hal-upec-upem.archives-ouvertes.fr/hal-00773340
Contributor : Christian Soize <>
Submitted on : Sunday, January 13, 2013 - 11:04:38 AM
Last modification on : Wednesday, February 26, 2020 - 7:06:08 PM
Long-term archiving on: : Sunday, April 14, 2013 - 3:57:48 AM

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  • HAL Id : hal-00773340, version 1

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J.-F. Durand, L. Gagliardini, Christian Soize. Robustesse des modèles numériques du comportement vibroacoustique des véhicules vis-a-vis des incertitudes de modélisation. 17ème Congrès Français de Mécanique 2005, AFM, Aug 2005, Troyes, France. pp.Pages : 1-6. ⟨hal-00773340⟩

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