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Optimal Replacement of Heterogeneous Items With Minimal Repairs

Title
Optimal Replacement of Heterogeneous Items With Minimal Repairs
Authors
Cha, Ji Hwan
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2016
Journal Title
IEEE TRANSACTIONS ON RELIABILITY
ISSN
0018-9529JCR Link1558-1721JCR Link
Citation
vol. 65, no. 2, pp. 593 - 603
Keywords
Mixed populationoperational historyrepairable itemreplacement policystochastically ordered subpopulations
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Indexed
SCIE; SCOPUS WOS
Abstract
In this paper, a new replacement policy for a deteriorating item from a mixed population is suggested. The item is randomly selected from a mixed population composed of two stochastically ordered subpopulations and the corresponding subpopulation from which the item is selected is unknown. As the operational history contains the information about the subpopulation from which the item is selected, it is reasonable to employ this information in determining the replacement policy. In the new replacement policy, the age at which the item will be replaced is not determined before the operation of the item, but it is determined based on the failure/repair history of the item observed during the initial operation. It is shown that the proposed replacement policy outperforms the ordinary periodic replacement policy. The properties of the optimal replacement policy will be studied in detail.
DOI
10.1109/TR.2015.2513049
Appears in Collections:
자연과학대학 > 통계학전공 > Journal papers
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