Redundancy allocation problem in a bridge system with dependent subsystems

Kamyar Sabri-Laghaie, Milad Eshkevari, Mahdi Fathi and Enrico Zio

Journal of Risk and Reliability, 2019, vol. 233, issue 4, 658-669

Abstract: The redundancy allocation problem is an important problem in system reliability design. Many researchers have investigated the redundancy allocation problem under different assumptions and for various system configurations. However, most of the studies have disregarded the dependence among components and subsystems. In real-world applications, the performance of components and subsystems can affect each others. For instance, the heat radiated by a subsystem can accelerate degradation of adjacent components or subsystems. In this article, a procedure is proposed for solving the redundancy allocation problem of a bridge structure with dependent subsystems. Copula theory is utilized for modeling dependence among subsystems, and artificial neural network and particle swarm optimization are applied for finding the best redundancy allocation. A numerical example is included to elaborate the proposed procedure and show its applicability.

Keywords: Redundancy allocation problem; bridge system; dependence; Copula theory; artificial neural network; particle swarm optimization (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:sae:risrel:v:233:y:2019:i:4:p:658-669

DOI: 10.1177/1748006X18814627

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