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- W2246322019 abstract "La connaissance du domaine de variation des réponses d'une structure dues aux incertitudes qui découlent des tolérances de fabrication, des conditions limites et des excitations est essentielle dans un processus de conception globale. Nous proposons dans cet article une alternative au calcul de la probabilité de défaillance afin de caractériser la fiabilité lorsque l'information sur les incertitudes paramétriques est limitée. Une approche non-probabiliste de fiabilité basée sur une modélisation convexe des incertitudes ainsi que sur la fonction robustesse permet de relier les trois principaux composants de l'analyse d'incertitude : le modèle de la structure, les incertitudes et le critère de performance. Dans cet article, nous nous intéressons au problème inverse qui consiste à déterminer le domaine maximal d'incertitude tel que les critère de performance soit respecté. La méthodologie proposée est appliquée à deux applications dans le domaine de l'élastodynamique. A knowledge of the variability in structural responses due to uncertainties in manufacturing tolerances, boundary conditions and excitations is essential for design in order to ensure reliable performance. We are interested in making a reliable decision when knowledge of uncertainties is quite limited and when the use of a probabilistic law is unjustified. A non-probabilistic concept of reliability based on the info-gap robustness function allows us to define the three main components of the uncertainty analysis: structural model, uncertainty model represented by info-gap models, and a performance criterion. This article concentrates on the inverse problem which consists in determining the maximal volume in the domain of uncertainty within which the performance criterion is guaranteed. The proposed methodology is illustrated based on two applications in the field of linear elastodynamics." @default.
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- W2246322019 date "2003-02-01" @default.
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- W2246322019 title "Approche non-probabiliste de fiabilité basée sur les modèles convexesA non-probabilistic reliability approach based on convex models" @default.
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- W2246322019 doi "https://doi.org/10.1016/s1296-2139(03)00017-4" @default.
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