WIT Press


MINLP Approach To Truss Synthesis

Price

Free (open access)

Paper DOI

10.2495/HPSM040491

Volume

76

Pages

11

Published

2004

Size

354 kb

Author(s)

S.G`ilih & S. Kravanja

Abstract

The paper presents the synthesis of trusses using Mixed-Integer Non-Linear Programming (MINLP). The discrete/continuous non-convex and non-linear optimization problems are solved by the Modified OA/ER algorithm. The Hiearchical superelement approach (HSA) is introduced for the discrete topology optimization of trusses in order to reduce the number of topology alternatives. For the solution of truss synthesis problems, which include a high number of discrete/binary variables, we applied multilevel MINLP strategies. The Sequential Two-Phase (STP) strategy was developed for the topology, shape and standard dimension optimization of trusses. A numerical example at the end of the paper shows the suitability of the proposed approach. 1 Introduction The paper presents the Mixed-Integer Non-Linear Programming (MINLP) optimization approach to the synthesis of trusses. The solu

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