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자연과학대학
통계학전공
Journal papers
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Stochastic modeling for systems with delayed failures
Title
Stochastic modeling for systems with delayed failures
Authors
Cha J.H.
;
Finkelstein M.
Ewha Authors
차지환
SCOPUS Author ID
차지환
Issue Date
2019
Journal Title
Reliability Engineering and System Safety
ISSN
0951-8320
Citation
Reliability Engineering and System Safety vol. 188, pp. 118 - 124
Keywords
Defect
;
Delayed failures
;
Fast repair approximation
;
Repairable system
;
Survival probability
Publisher
Elsevier Ltd
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
We present stochastic description for repairable systems with delayed failures. Initial defects in a system result in its failure only after some delay. Specifically, it happens in repairable systems when the defects are not repaired within some period of time that can be either deterministic or random. Therefore, operation of a system is described by the corresponding terminating renewal process. We derive and analyze relationships for the survival probability and the mean time to failure for these systems. The results are derived in the form of the corresponding Laplace transforms that are numerically inverted for illustrative examples. Simple fast repair approximations are considered and their accuracy is also discussed. © 2019 Elsevier Ltd
DOI
10.1016/j.ress.2019.03.017
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