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 language | English (US) |
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Pages (from-to) | 509-520 |
Number of pages | 12 |
Journal | Quality Engineering |
Volume | 32 |
Issue number | 3 |
DOIs | |
State | Published - Jul 2 2020 |
Externally published | Yes |
Keywords
- degradation
- hard failures
- heuristic optimization
- imperfect maintenance
- selective maintenance
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Industrial and Manufacturing Engineering