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dc.contributor.authorPerera, Lokukaluge Prasad
dc.contributor.authorMachado, Mario M.
dc.contributor.authorValland, Anders
dc.contributor.authorManguinho, Diego A.P.
dc.date.accessioned2019-02-19T09:04:35Z
dc.date.available2019-02-19T09:04:35Z
dc.date.issued2019-01-06
dc.description.abstractSystem reliability of an offshore power plant with several gas turbine engines is analyzed in this study to understand the failure intensity of a selected gas turbine engines under varying maintenance activities. A set of event data of a selected gas turbine engine is considered to identify system failure intensity levels, where unknown maintenance actions were implemented (i.e. various repairs disturb the failure rate). A non-homogeneous Poisson process (NHPP) is used to model the age dependent failure intensity of the same gas turbine engine and the maximum likelihood estimation (MLE) approach for calculating the respective model parameters is proposed. Several failure intensity rates (i.e. varying failure trends) in these models (i.e. during the system age of the gas turbine engine) are observed. Furthermore, these varying failure trend models are evaluated with actual failure events of the same gas turbine engine by considering two goodness-of-fit tests: Cramer-von Mises and Chi-square tests. Finally, system reliability of the gas turbine engine under the failure transition, failure intensity, mission reliability and mean time between failures (MTBF) is also discussed in this study.en_US
dc.description.sponsorshipThis work is supported by the Center for Integrated Operations (IO) in the Petroleum Industry, Trondheim, Norway, under the project of Remaining Useful Life (RUL) Modeling for Gas Turbine Engines, System Integrity and Dynamic Risk Assessment (T3) and funded by the Research Council of Norway (NRC) and Petróleo Brasileiro S.A. (Petrobras)en_US
dc.identifier.citationPerera LP, Machado MM, Valland A, Manguinho DA. (2019) Failure intensity of offshore power plants under varying maintenance policies. <i>Engineering Failure Analysis, 97 </i> , 434-453. https://doi.org/10.1016/j.engfailanal.2019.01.011en_US
dc.identifier.cristinIDFRIDAID 1659429
dc.identifier.doi10.1016/j.engfailanal.2019.01.011
dc.identifier.issn1350-6307
dc.identifier.issn1873-1961
dc.identifier.urihttps://hdl.handle.net/10037/14711
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalEngineering Failure Analysis
dc.rights.accessRightsopenAccessen_US
dc.rights.holder© 2019 The Authors.
dc.subjectVDP::Technology: 500en_US
dc.subjectVDP::Teknologi: 500en_US
dc.titleFailure intensity of offshore power plants under varying maintenance policiesen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.typeTidsskriftartikkel


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