Reference : A New Separable Approximation Scheme for Topological Problems and Optimization Proble...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Mechanical engineering
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/28259
A New Separable Approximation Scheme for Topological Problems and Optimization Problems Characterized by a Large Number of Design Variables
English
Duysinx, Pierre mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Zhang, Weihong mailto [ > > ]
Fleury, Claude [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Optimisation multidisciplinaire >]
Nguyen, Van Hien mailto [ > > ]
Haubruge, Sylvianne [ > > ]
May-1995
Proceedings of the First World Congress of Structural and Multidisciplinary Optimization (WCSMO1)
Olhoff, Niels
Rozvany, Georges I.N.
1-8
No
No
International
First World Congress of Structural and Multidisciplinary Optimization
May 28-June2, 1995
ISSMO
Goslar
Germany
[en] Structural approximation ; Mathematical Programming ; BFGS ; Topology optimization ; MMA ; CONLIN
[en] This paper is dedicated to a new convex separable approximation for solving optimization problems characterized by a very large number of design variables as in topology design. For such problems, the convergence speed can be accelerated if one uses high quality approximation schemes for structural responses. To achieve this task, we propose, here, a new approximation procedure that belongs to the GMMA family. The originality of this new scheme is to rely on an automatic selection procedure of the asymptotes, using only first and zero order information accumulated during the previous iterations. This is possible owing to a diagonal Quasi-Newton update technique. Firstly, the new approximation procedure is validated on classical "benchmarks" of structural optimization. Then, it is compared to other schemes on a typical topology optimization problem.
http://hdl.handle.net/2268/28259

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