期刊
RELIABILITY ENGINEERING & SYSTEM SAFETY
卷 142, 期 -, 页码 221-230出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2015.06.002
关键词
Reliability; Redundancy allocation problem; PSO; SSO; Mixed-integer nonlinear programming
This paper proposes a new swarm intelligence method known as the Particle-based Simplified Swarm Optimization (PSSO) algorithm while undertaking a modification of the Updating Mechanism (UM), called N-UM and R-UM, and simultaneously applying an Orthogonal Array Test (OA) to solve reliability-redundancy allocation problems (RRAPs) successfully. One difficulty of RRAP is the need to maximize system reliability in cases where the number of redundant components and the reliability of corresponding components in each subsystem are simultaneously decided with nonlinear constraints. In this paper, four REAP benchmarks are used to display the applicability of the proposed PSSO that advances the strengths of both PSO and SSO to enable optimizing the RRAP that belongs to mixed-integer nonlinear programming. When the computational results are compared with those of previously developed algorithms in existing literature, the findings indicate that the proposed PSSO is highly competitive and performs well. (C) 2015 Elsevier Ltd. All rights reserved.
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