Stojan Kravanja (Avtor), Simon Šilih (Avtor), Zdravko Kravanja (Avtor)

Povzetek

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.

Ključne besede

optimiranje konstrukcij;sinteza konstrukcij;MINLP;optimizacija topologije;optimizacija materialov;diskretno optimiranje;večstopenjska MINLP strategija;paličja;sovprežni nosilec;tablasta zapornica;structural optimization;structural synthesis;topology opitmization;material optimization;discrete variable optimization;multilevel MINLP strategy;truss;composite beam;roller gate;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 624.074.5:519.6
COBISS: 9532182 Povezava se bo odprla v novem oknu
ISSN: 0965-9978
Št. ogledov: 2100
Št. prenosov: 86
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarne ključne besede: optimiranje konstrukcij;sinteza konstrukcij;MINLP;optimizacija topologije;optimizacija materialov;diskretno optimiranje;večstopenjska MINLP strategija;paličja;sovprežni nosilec;tablasta zapornica;
URN: URN:SI:UM:
Strani: str. 568-583
Letnik: ǂVol. ǂ36
Zvezek: ǂiss. ǂ9
Čas izdaje: September 2005
ID: 8718289