20.500.12556/DKUM-27019 The multilevel MINLP optimization approach to structural synthesis: the simultaneous topology, material, standard and rounded dimension optimization The paper describes the simultaneous topology, material, standard and rounded dimension optimization of mechanical structures, performed by the Mixed-Integer Non-linear Programming (MINLP) approach. Beside the generation of an MINLP mechanical superstructure, the development of a general multilevel MINLP formulation for a mechanical superstructure is presented. The consideration of the discrete materials as well as standard and particularly rounded dimensions in structural synthesis significantly increases the combinatorics of the discrete optimization, which as a result may become too difficult to solve. A Linked Multilevel Hierarchical Strategy (LMHS) has been introduced for the solving of such large combinatorial problems. In order to decrease the effect of non-convexities, the Modified Outer-Approximation/Equality-Relaxation (OA/ER) algorithm has been applied. Four numerical examples of different complexities are presented to illustrate the proposed multilevel MINLP optimization approach: the optimization of two steel trusses, a composite I beam and a hydraulic steel roller gate Intake gate, erected in Aswan II, Egypt. structural optimization structural synthesis MINLP topology opitmization material optimization discrete variable optimization multilevel MINLP strategy truss composite beam roller gate optimiranje konstrukcij sinteza konstrukcij MINLP optimizacija topologije optimizacija materialov diskretno optimiranje večstopenjska MINLP strategija paličja sovprežni nosilec tablasta zapornica true false false Angleški jezik Angleški jezik Neznano 2012-06-01 09:38:36 2012-06-01 09:38:37 2022-04-15 03:43:11 2019-07-10 12:10:32 2005 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.074.5:519.6 9532182 0965-9978 URN:SI:UM:DK:WZXOTDRP http://dx.doi.org/10.1016/j.advengsoft.2005.03.004 1 https://dk.um.si/Dokument.php?lang=slv&id=36254 Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo 0 0 0