La conception de structures navales en sandwich: Un probleme inverse

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Contributeur(s) Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1992
Identifiant documentaire 9-1054
Identifiant OAI oai:archimer.ifremer.fr:1054
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Auteur(s): Holm, D,Esping, B,Romell, O,Campion, F
Mots clés Finite element method Glass reinforced plastics Ship hulls Safety devices Ship technology Ship design Composite materials Sandwich Composite Problème inverse Sensibilité Optimisation
Date de publication 01/12/1992
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Langue fre
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Droits de réutilisation info:eu-repo/semantics/openAccess

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Description
An integrated approach is introduced for the solution of the inverse problem: which are the lamina orientation, laminate constitution, core quality and thickness combination ensuring specified objective(s) to be reached? The optimal solution is obtained using mathematically stringent optimization methods (the Method of Moving Asymptotes, MMA) coupled with finite element analysis, interactive graphic pre- and post-processing and parametric modelling, as implemented in OASIS-ALADDIN. This approach has been applied to the optimal design of the hull structure of a Surface Effect Ship made of GRP-sandwich. The objective was to minimize the weight of the ship by determining the optimum skin and core thicknesses of structural members of the hull as well as web spacing with constraints on panel stiffness and maximum stress as to meet the rules of Det norske Veritas. The total weight was reduced by 5%.
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