A hybrid multi-objective optimization and decision making procedure for optimal design of truss structures

	A hybrid multi-objective optimization and decision making procedure for optimal design of truss structures
Iranian Journal of Science and Technology Transactions of Civil Engineering
شناسنامه علمی شماره، دوره 35، شماره 2، فروردین 2011، صفحه 137-154 اصل مقاله (1.54 M)
شناسه دیجیتال (DOI): 10.22099/ijstc.2012.663
چکیده
In this paper, a new hybrid method is developed for optimal design of truss structures. This method is based on a modified multi-objective particle swarm optimization, tournament decision making process, and a local search algorithm. In structural design practice, different objectives are usually considered in the selection of the final design in which most of these objectives contradict each other. The use of a multi-objective optimization method guides the decision makers to find the most suitable design. Incorporating a decision making process with this optimization, it becomes possible to find a solution which covers most of the requirements. The developed hybrid algorithm is applied to three truss structures to illustrate its ability in finding the optimal solution
کلیدواژه‌ها
Multi-objective optimization؛ particle swarm optimization (PSO)؛ decision making (DM) process؛ Pareto-optimal

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