期刊
RELIABILITY ENGINEERING & SYSTEM SAFETY
卷 94, 期 4, 页码 830-837出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2008.09.001
关键词
Reliability-redundancy optimization; Particle swarm optimization; Evolutionary algorithm; Meta-heuristics
资金
- National Council of Scientific and Technologic Development of Brazil-CNPq [309646/2006-5/PQ]
The reliability-redundancy optimization problems can involve the selection of components with multiple choices and redundancy levels that produce maximum benefits, and are subject to the cost, weight, and volume constraints. Many classical mathematical methods have failed in handling nonconvexities and nonsmoothness in reliability-redundancy optimization problems. As an alternative to the classical optimization approaches, the meta-heuristics have been given much attention by many researchers due to their ability to find an almost global optimal solutions. One of these meta-heuristics is the particle swarm optimization (PSO). PSO is a population-based heuristic optimization technique inspired by social behavior of bird flocking and fish schooling. This paper presents an efficient PSO algorithm based on Gaussian distribution and chaotic sequence (PSO-GC) to solve the reliabilityredundancy optimization problems. In this context, two examples in reliability-redundancy design problems are evaluated. Simulation results demonstrate that the proposed PSO-GC is a promising optimization technique. PSO-GC performs well for the two examples of mixed-integer programming in reliability-redundancy applications considered in this paper. The solutions obtained by the PSO-GC are better than the previously best-known solutions available in the recent literature. (C) 2008 Elsevier Ltd. All rights reserved.
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