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

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

Publication:
Quality Engineering
Date:
July 2020
Issue:
Volume 32 Issue 3
Pages:
pp. 509-520
Author(s):
Ruiz, Cesar, Pohl, Edward A., Liao, Haitao
The copyright of this article is not held by ASQ.

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.

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