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Lagrange-Kuhn-Tucker coordination for multilevel optimization of aeronautical structures

Merval, Antoine and Samuelides, Manuel and Grihon, Stéphane Lagrange-Kuhn-Tucker coordination for multilevel optimization of aeronautical structures. (2008) In: 4th AIAA Multidisciplinary Design Optimization Specialist Conference, 07-10 April 2008, Schaumburg, United States .

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Official URL: http://www.aiaa.org/content.cfm?pageid=406

Abstract

In this paper, we propose a Lagrange-Kuhn-Tucker based coordination scheme to deal with level coupling. First, we give a precise definition of several multilevel decomposition schemes, namely the StiffOpt -industrial- approach, and the minMass approach which keeps a mass minimization as objective of local optimisations. Then, we introduce a new decomposition strategy using dual variables. Last section is dedicated to numerical results and comparison of these approaches on the classical ten bar truss problem benchmark.

Item Type:Conference or Workshop Item (Paper)
Additional Information:AIAA-2008-2223 ; 10 pages
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Airbus (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
Other partners > Sogeti (FRANCE)
Laboratory name:
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Deposited By: Manuel Samuelides

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