Selective maintenance modeling and analysis of a complex system with dependent failure modes

Cesar Ruiz, Edward A. Pohl, Haitao Liao

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)509-520
Number of pages12
JournalQuality Engineering
Volume32
Issue number3
DOIs
StatePublished - Jul 2 2020
Externally publishedYes

Keywords

  • degradation
  • hard failures
  • heuristic optimization
  • imperfect maintenance
  • selective maintenance

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering

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