Frailty model for multiple repairable systems hierarchically represented subject to competing risks

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dc.contributor.authorGonzatto Junior, Oilson A.
dc.contributor.authorFernandes, Willian R.
dc.contributor.authorRamos, Pedro L.
dc.contributor.authorTomazella, Vera L. D.
dc.contributor.authorLouzada, Francisco
dc.date.accessioned2025-01-20T16:12:01Z
dc.date.available2025-01-20T16:12:01Z
dc.date.issued2024
dc.description.abstractIn this paper, we propose a statistical model to describe the behaviour of failure times associated with groups of repairable systems hierarchically represented, under a competing risks framework, considering the existence of unobserved heterogeneity that acts individually on systems of each group, as well as the possibility of imperfect repairs whose initial failure rate is in the form of the power law. In this context for the unobserved heterogeneity in the groups, we consider the multiplicative frailty. To illustrate the use of the proposed model, we consider a database with the failures of 38 agricultural machines categorized into five different groups. We understand that the tractor fleet corresponds to the farm's agricultural system, therefore the need for intervention in this system occurs with the failure of any unit, individually, in a serial structure, of competing risks.e On the other hand, the understanding of the time in which all the machinery that makes up the fleet will have required some intervention is obtained by analysing the results under a parallel structure.
dc.fuente.origenWOS
dc.identifier.doi10.1080/00949655.2024.2381515
dc.identifier.eissn1563-5163
dc.identifier.issn0094-9655
dc.identifier.urihttps://doi.org/10.1080/00949655.2024.2381515
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90308
dc.identifier.wosidWOS:001280503400001
dc.issue.numero15
dc.language.isoen
dc.pagina.final3291
dc.pagina.inicio3271
dc.revistaJournal of statistical computation and simulation
dc.rightsacceso restringido
dc.subjectReliability engineering. Repairable system
dc.subjectcompeting risks
dc.subjectHierarchical systems
dc.subjectfrailty model
dc.subjectcorrective maintenance
dc.subjectpower law process
dc.titleFrailty model for multiple repairable systems hierarchically represented subject to competing risks
dc.typeartículo
dc.volumen94
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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