دوره 3، شماره 1 - ( 12-1391 )                   جلد 3 شماره 1 صفحات 131-149 | برگشت به فهرست نسخه ها


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Shahrouzi M, Yousefi A. FIXED-WEIGHT EIGENVALUE OPTIMIZATION OF TRUSS STRUCTURES BY SWARM INTELLIGENT ALGORITHMS. International Journal of Optimization in Civil Engineering. 2013; 3 (1) :131-149
URL: http://ijoce.iust.ac.ir/article-1-123-fa.html
FIXED-WEIGHT EIGENVALUE OPTIMIZATION OF TRUSS STRUCTURES BY SWARM INTELLIGENT ALGORITHMS. دانشگاه علم و صنعت ایران. 1391; 3 (1) :131-149

URL: http://ijoce.iust.ac.ir/article-1-123-fa.html


چکیده:   (3371 مشاهده)
Meta-heuristics have already received considerable attention in various engineering optimization fields. As one of the most rewarding tasks, eigenvalue optimization of truss structures is concerned in this study. In the proposed problem formulation the fundamental eigenvalue is to be maximized for a constant structural weight. The optimum is searched using Particle Swarm Optimization, PSO and its variant PSOPC with Passive Congregation as a recent meta-heuristic. In order to make further improvement an additional hybrid PSO with genetic algorithm is also proposed as PSOGA with the idea of taking benefit of various movement types in the search space. A number of benchmark examples are then treated by the algorithms. Consequently, PSOGA stood superior to the others in effectiveness giving the best results while PSOPC had more efficiency and the least fit ones belonged to the Standard PSO.
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نوع مطالعه: پژوهشي | موضوع مقاله: Optimal design
دریافت: ۱۳۹۱/۱۱/۵

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