Selective maintenance modeling and analysis of a complex system with dependent failure modes. Issue Volume 32:Issues 3(2020) (2nd July 2020)

• Record Type: Journal Article
• Authors: Ruiz, Cesar; Pohl, Edward A.; Liao, Haitao
• Is Part Of: Quality engineering. Volume 32:Issues 3(2020)
• Page Start: 509
• Page End: 520
• Publication Date: 2020-07-02
• Subjects: degradation -- hard failures -- imperfect maintenance -- heuristic optimization -- selective maintenance; Quality control -- Periodicals; Production management -- Quality control -- Periodicals; 658.5
• DOI: 10.1080/08982112.2020.1755983
• Languages: English
• ISSNs: 0898-2112

Abstract

Abstract: In this paper, we propose a statistical and optimization framework for selective maintenance of a complex system with components that have multiple failure modes. Specifically, we study the case where each component has multiple instantaneous hard failure modes and a single soft failure mode. An imperfect maintenance action reduces the effective age and degradation level of a component while increasing the mean degradation parameter and the failure rates of hard failures. A numerical example illustrates the application of the proposed framework and the effectiveness of the Genetic Algorithm and Differential Evolution heuristics in solving such maintenance optimization problems.