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A STOCHASTIC FAILURE MODEL WITH DEPENDENT COMPETING RISKS AND ITS APPLICATIONS TO CONDITION-BASED MAINTENANCE

Title
A STOCHASTIC FAILURE MODEL WITH DEPENDENT COMPETING RISKS AND ITS APPLICATIONS TO CONDITION-BASED MAINTENANCE
Authors
Cha, Ji HwanCastro, Inma T.
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2015
Journal Title
JOURNAL OF APPLIED PROBABILITY
ISSN
0021-9002JCR Link1475-6072JCR Link
Citation
vol. 52, no. 2, pp. 558 - 573
Keywords
Dependent competing risksdegradation processcatastrophic failureexternal shock processbaseline failure rate functioncondition-based maintenance
Publisher
APPLIED PROBABILITY TRUST
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In this paper a stochastic failure model for a system with stochastically dependent competing failures is analyzed. The system is subject to two types of failure: degradation failure and catastrophic failure. Both types of failure share an initial common source: an external shock process. This implies that they are stochastically dependent. hi our developments of the model, the type of dependency between the two kinds of failure will be characterized. Conditional properties of the two competing risks are also investigated. These properties are the fundamental basis for the development of the maintenance strategy studied in this paper. Considering this maintenance strategy, the long-run average cost rate is derived and the optimal maintenance policy is discussed.
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자연과학대학 > 통계학전공 > Journal papers
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