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A dynamic methodology for setting up inspection time intervals in conditional preventive maintenance

dc.contributor.authorAssis, Rui
dc.contributor.authorMarques, Pedro
dc.date.accessioned2021-10-06T09:31:47Z
dc.date.available2021-10-06T09:31:47Z
dc.date.issued2021-09-18
dc.description.abstractIn periodic condition monitoring, the main problem lies in determining the inspection time intervals. This paper presents a new method for setting an optimum calendar to inspect a critical component that fails due to wear and tear as described by a Weibull probability function. By considering a set of inspection intervals, such that reliability between every two inspections is kept equal or below a pre-set threshold while keeping the total costs of inspection, degraded production, consequences of failure, and repair to a minimum. The resulting calendar may be adjusted dynamically over time as inspections take place and test results are found to be negative, by considering the inspector's confidence in the test and the likelihood of the method's yielding false negatives. Consequently, the method becomes self-adjustable as it returns a new calendar after the observations of each test are known and properly interpreted. There are several studies that deal with this issue, but none addresses the concept of safe and unsafe time windows which results from merging two other concepts: descendant inspection time intervals and the time delay between a potential failure and a functional failure (the P-F period).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationASSIS, Rui; MARQUES, Pedro Carmona – A dynamic methodology for setting up inspection time intervals in conditional preventive maintenance. Applied Sciences. eISSN 2076-3417. Vol. 11, N.º 18 (2021), pp. 1-11pt_PT
dc.identifier.doi10.3390/app11188715
dc.identifier.eissn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.21/13822
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationSelf-sufficient humidity to electricity Innovative Radiant Adsorption System Toward Net Zero Energy Buildings
dc.subjectConditional maintenancept_PT
dc.subjectInspection intervalspt_PT
dc.subjectReliabilitypt_PT
dc.subjectP-F curvept_PT
dc.titleA dynamic methodology for setting up inspection time intervals in conditional preventive maintenancept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSelf-sufficient humidity to electricity Innovative Radiant Adsorption System Toward Net Zero Energy Buildings
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/871284/EU
oaire.citation.endPage11pt_PT
oaire.citation.issue18pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume11pt_PT
oaire.fundingStreamH2020
person.familyNameMarques
person.givenNamePedro
person.identifier.ciencia-id2812-A48A-6813
person.identifier.orcid0000-0003-4891-1754
person.identifier.ridH-3387-2013
person.identifier.scopus-author-id55854236200
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoverydf7afbd5-979d-4622-b9fe-2d73de2ff1c1
relation.isProjectOfPublication093a1f34-41fb-4ed1-933f-4f645447984b
relation.isProjectOfPublication.latestForDiscovery093a1f34-41fb-4ed1-933f-4f645447984b

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