Optimal Inspection Policy for a Three-Stage System With Imperfect Inspection and Repair

Many production systems undergo a multistate deterioration process before failure, during which inspection and repair are used to detect and remove the defects. Given the limitations of technology and random noise, inspection and repair are always imperfect. This study considered imperfect inspectio...

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Bibliographic Details
Published inIEEE transactions on reliability Vol. 73; no. 3; pp. 1669 - 1683
Main Authors Tang, Xia, Xiao, Hui, Kou, Gang, Peng, Rui
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Costs
Delay-time
Delays
Density functional theory
Genetic algorithms
imperfect inspection
imperfect repair
Inspection
maintenance
Maintenance costs
Maintenance engineering
Mathematical models
Random noise
Repair
Steel
Steel converters
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Summary:Many production systems undergo a multistate deterioration process before failure, during which inspection and repair are used to detect and remove the defects. Given the limitations of technology and random noise, inspection and repair are always imperfect. This study considered imperfect inspection and repair for a system subject to a three-stage degradation process. The concepts of virtual age and the improvement factor were adopted to characterize the imperfect repair effect. To verify the effectiveness of the proposed model, we applied it to the case of a steel converter plant and used the genetic algorithm to search for the optimal solution. The numerical results indicated that an optimal arrangement of inspection policy could significantly reduce maintenance costs.
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content type line 14
ISSN:0018-9529
1558-1721
DOI:10.1109/TR.2024.3353755