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A hybrid preventive maintenance model for systems with partially observable degradation

Title
A hybrid preventive maintenance model for systems with partially observable degradation
Authors
Finkelstein, MaximCha, Ji HwanLevitin, Gregory
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2020
Journal Title
IMA JOURNAL OF MANAGEMENT MATHEMATICS
ISSN
1471-678XJCR Link

1471-6798JCR Link
Citation
IMA JOURNAL OF MANAGEMENT MATHEMATICS vol. 31, no. 3, pp. 345 - 365
Keywords
maintenanceshot-noise processPoisson processage replacementfailure (hazard) rate process
Publisher
OXFORD UNIV PRESS
Indexed
SCIE; SSCI; SCOPUS WOS
Document Type
Article
Abstract
A new model of hybrid preventive maintenance of systems with partially observable degradation is developed. This model combines condition-based maintenance with age replacement maintenance in the proposed, specific way. A system, subject to a shock process, is replaced on failure or at some time T-S if the number of shocks experienced by this time is greater than or equal to m or at time T > T-S otherwise, whichever occurs first. Each shock increases the failure rate of the system at the random time of its occurrence, thus forming a corresponding shot-noise process. The real deterioration of the system is partially observed via observation of the shock process at time T-S. The corresponding optimization problem is solved and a detailed numerical example demonstrates that the long-run cost rate for the proposed optimal hybrid strategy is smaller than that for the standard optimal age replacement policy.
DOI
10.1093/imaman/dpz018
Appears in Collections:
자연과학대학 > 통계학전공 > Journal papers
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