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Accueil > Vie scientifique > Réunion Numérique > 2012-2013

Réunion du jeudi 10 janvier 2013

Bonjour à tous et meilleurs voeux,

Contre toute attente, la réunion numérique a survécu aux fêtes de fin d’année, elle revient donc jeudi 10 janvier à partir de 10h30 en H224.

Nous aurons le plaisir d’écouter l’exposé de 夏凉, sur le thème :
"An implicit model for the integrated optimization of component layout and structure topology"

Quelques précisions :
Integrated design of the structure topology and involved component layout is a challenging design issue when compared with traditional topology optimization. In this paper, we propose an implicit modeling approach that works completely on an Eulerian finite element mesh throughout the whole optimization process. To this aim, implicit level-set functions and R-functions are employed to describe geometrical shapes of movable components. In particular, a modified arctan function is adopted to depict the material discontinuity along the interface between the structure domain and each component domain. They are then used for material interpolations and analytical sensitivity analysis w.r.t. both pseudo-density design variables and location design variables related to the host structure and components, respectively.
Based on a variety of numerical tests, it is demonstrated that considered design problems with movable components can easily be solved by extending the SIMP material model based topology optimization approach using an Eulerian mesh and the gradient-based optimization algorithm.