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On a new age-replacement policy for items with observed stochastic degradation

Title
On a new age-replacement policy for items with observed stochastic degradation
Authors
Finkelstein, MaxonCha, Ji HwanLevitin, Gregory
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2020
Journal Title
QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL
ISSN
0748-8017JCR Link

1099-1638JCR Link
Citation
QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL vol. 36, no. 3, pp. 1132 - 1143
Keywords
age replacementgamma processgradual failurelong-run cost ratepreventive maintenance
Publisher
WILEY
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
A new methodology for preventive maintenance of degrading items is discussed. It combines the classical age-replacement strategy when a system is replaced either on failure or on reaching the predetermined age, with replacement on reaching the predetermined level of deterioration at some intermediate time. Degradation of an item is modeled by the nonhomogeneous gamma process, whereas its failure occurs when this process reaches the predetermined deterministic level. It is shown that the proposed policy outperforms the classical one, i.e., it achieves the lower value of the corresponding long-run cost rate. The detailed numerical illustration is presented, and the relevant sensitivity analysis for the main parameters of the model is performed.
DOI
10.1002/qre.2619
Appears in Collections:
자연과학대학 > 통계학전공 > Journal papers
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