| Naslov: | The MINLP approach to topology, shape and discrete sizing optimization of trusses |
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| Avtorji: | ID Šilih, Simon (Avtor)
ID Kravanja, Zdravko (Avtor)
ID Kravanja, Stojan (Avtor) |
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| Datoteke: |  applsci-12-01459-v2.pdf (2,49 MB)
MD5: B2F1F6818EBF041177448B82862869DC
 https://www.mdpi.com/2076-3417/12/3/1459
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Članek v reviji |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FKKT - Fakulteta za kemijo in kemijsko tehnologijo
FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
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| Opis: | The paper presents the Mixed-Integer Non-linear Programming (MINLP) approach to the
synthesis of trusses. The solution of continuous/discrete non-convex and non-linear optimization
problems is discussed with respect to the simultaneous topology, shape and discrete sizing optimization of trusses. A truss MINLP superstructure of different topology and design alternatives
has been generated, and a special MINLP model formulation for trusses has been developed. In the
optimization model, a mass objective function of the structure has been defined and subjected to
design, load and dimensioning constraints. The MINLP problems are solved using the Modified
Outer-Approximation/Equality-Relaxation (OA/ER) algorithm. Multi-level MINLP strategies are introduced to accelerate the convergence of the algorithm. The Modified Two-Phase and the Sequential
Two-Phase MINLP strategies are proposed in order to solve highly combinatorial topology, shape
and discrete sizing optimization problems. The importance of local buckling constraints on topology
optimization is also discussed. Some simple numerical examples are shown at the end of the paper to
demonstrate the suitability and efficiency of the proposed method. |
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| Ključne besede: | structural synthesis, topology optimization, discrete sizing optimization, mixed-integer non-linear programming, MINLP, modified OA/ER algorithm, multi-level MINLP strategies, steel structures, trusses |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 20.12.2021 |
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| Datum sprejetja članka: | 26.01.2022 |
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| Datum objave: | 29.01.2022 |
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| Založnik: | MDPI |
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| Leto izida: | 2022 |
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| Št. strani: | 36 str. |
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| Številčenje: | Vol. 12, iss. 3 |
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| PID: | 20.500.12556/DKUM-92020  |
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| UDK: | 624.014.27:519.85 |
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| COBISS.SI-ID: | 96336899 |
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| DOI: | 10.3390/app12031459 |
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| ISSN pri članku: | 2076-3417 |
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| Avtorske pravice: | © 2022 by the authors |
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| Datum objave v DKUM: | 11.03.2025 |
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| Število ogledov: | 0 |
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| Število prenosov: | 3 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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