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Titolo:
Investigation of a practical method of structural optimization by genetic algorithms - (Proposal of a hybrid GA and application towards the thicknessoptimization of a CRT)
Autore:
Sakamoto, H; Takada, S; Itoh, J; Miyazaki, M; Hijikata, A;
Indirizzi:
Mitsubishi Electr Corp, Adv Technol R&D Ctr, Mech Syst Dept, Amagasaki, Hyogo 6618661, Japan Mitsubishi Electr Corp Amagasaki Hyogo Japan 6618661 Hyogo 6618661, Japan Mitsubishi Electr Corp, Dept Mech Engn, Mobile Commun Business Div, Amagasaki, Hyogo 6618661, Japan Mitsubishi Electr Corp Amagasaki Hyogo Japan 6618661 Hyogo 6618661, Japan Kanazawa Inst Technol, Div Mech & Mech Syst Engn, Nonoichi, Ishikawa 9218501, Japan Kanazawa Inst Technol Nonoichi Ishikawa Japan 9218501 kawa 9218501, Japan
Titolo Testata:
JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING
fascicolo: 3, volume: 44, anno: 2001,
pagine: 330 - 337
SICI:
1344-7912(200107)44:3<330:IOAPMO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Keywords:
optimum design; structural analysis; computational mechanics; genetic algorithms; parallel computing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Sakamoto, H Mitsubishi Electr Corp, Adv Technol R&D Ctr, Mech Syst Dept, 8-1-1 Tsukaguchi Honmachi, Amagasaki, Hyogo 6618661, Japan Mitsubishi ElectrCorp 8-1-1 Tsukaguchi Honmachi Amagasaki Hyogo Japan 6618661
Citazione:
H. Sakamoto et al., "Investigation of a practical method of structural optimization by genetic algorithms - (Proposal of a hybrid GA and application towards the thicknessoptimization of a CRT)", JSME A, 44(3), 2001, pp. 330-337

Abstract

A new hybrid genetic algorithm (GA) and a parallel genetic algorithm are proposed in this paper in order to improve the convergence of structural optimization. The fully stressed design, FSD, method and a GA were incorporated into the hybrid GA. In the parallel GA, the "island model" was applied toreduce the computation time. Stress analyses were carried out with a commercial FEM code to obtain the optimum solution with high reliability even ina complex model. As a result of the axi-symmetric shell model, the optimumsolution by using the proposed hybrid GA was 50% lighter than that by using simple GA. Furthermore, the computation time using the parallel GA with 10 processors was reduced by up to 1/7 of the time using one processor. These methods were then used to optimize the thickness of a three-dimensional shell model of a CRT. As a result of the application, the weight of the optimum model was 25% lighter than that of the reference model.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 12:32:28