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The MINLP optimization approach to structural synthesis. Part II, Simultaneous topology, parameter and standard dimension optimization by the use of the linked two-phase MINLP strategyKravanja, Stojan ; Kravanja, Zdravko ; Bedenik, BrankoPart II describes the Mixed-Integer Non-linear Programming (MINLP) approach to structural synthesis where standard dimensions are added to simultaneous topology and parameter optimization. For this ... purpose, the mechanical superstructure has been enhanced and a special MINLP-MS model formulation for mechanical superstructures from Part I adapted to standard dimension alternatives, which give rise to complex MINLP problems that are difficult to solve. A Linked Two-Phase MINLP Strategy has been developed to efficiently accelerate the solutions of highly combinatorial MINLP problems, performed by the modified OA/ER algorithm. In the first phase, the strategy uses only continuous dimensions making it easier to find an optimal topology. Based on the obtained global linear approximation of the superstructure, the proposed strategy in the second phase continuoes to perform an overall simultaneous optimization, where standard dimensions are added as additional discrete optimization alternatives. Thus, simultaneous topology, parameter and standard dimension optimization is now performed in the second phase. The synthesis of a multiple cantilever beam, introduced in Part I, was performed in accordance with the steps proposed by the MINLP optimization approach. This approach enables the obtaining of additional savings when compared to the one in Part I.Vir: International journal for numerical methods in engineering. - ISSN 0029-5981 (43, No. 2, 1998, str. 293-328)Vrsta gradiva - članek, sestavni delLeto - 1998Jezik - angleškiCOBISS.SI-ID - 3937302
Avtor
Kravanja, Stojan |
Kravanja, Zdravko |
Bedenik, Branko
Teme
konstrukcije |
sinteza konstrukcij |
topologija |
optimizacija |
diskretna spremenljiva optimizacija |
mešano celoštevilčno nelinearno programiranje |
MINLP strategija |
structures |
structural synthesis |
topology |
optimization |
discrete variable optimization |
mixed integer nonlinear programming |
MINLP strategy |
modified OA/ER algorithm
vir: International journal for numerical methods in engineering. - ISSN 0029-5981 (43, No. 2, 1998, str. 293-328)
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Kravanja, Stojan | 07599 |
Kravanja, Zdravko | 06005 |
Bedenik, Branko | 07675 |
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