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International Journal of Optimaization in Civil Engineering، جلد ۱۳، شماره ۲، صفحات ۱۵۵-۱۷۶
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عنوان انگلیسی AN ADAPTIVE-BAND STRATEGY TO ACCELERATE DISCRETE OPTIMIZATION OF SPACE TRUSS STRUCTURES
چکیده انگلیسی مقاله In most practical cases, structural design variables are linked to a discrete list of sections for optimal design. Cardinality of such a discrete search space is governed by the number of alternatives for each member group. The present work offers an adaptive strategy to detect more efficient alternatives and set aside redundant ones during optimization. In this regard, the difference between the lower and the upper bounds on such variables is gradually reduced by a procedure that adapts history of the selected alternatives in previous iterations. The propsed strategy is implemented on a hybrid paritcle swarm optimizer and imperialist competitive algorithm. The former is a basic swarm intelligent method while the later utilizes subpopulations in its search. Spatial and large-scale structures in various shapes are treated showing successive performance improvement. Variation of a diversity index and resulting band size are traced and discussed to declare behavior merits of the proposed adaptive band strategy.    
کلیدواژه‌های انگلیسی مقاله Adaptive-band sizing, discrete structural optimization, truss, swarm intelligence, imperialist competitive algorithm, efficiency improvement.
نویسندگان مقاله | M. Shahrouzi


| A. Salehi


نشانی اینترنتی http://ijoce.iust.ac.ir/browse.php?a_code=A-10-66-368&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Optimal design
نوع مقاله منتشر شده پژوهشی
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