{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-NETHADAE/801baa9b-c758-4e2c-8c49-a039287168b3/HTML","dcterms:extent":"82 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-NETHADAE/df359525-b1ec-40fc-beb7-633703e449b4/PDF","dcterms:extent":"618 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-NETHADAE/793675ba-706e-4b31-9ef3-29be267f16f4/TEXT","dcterms:extent":"47 KB"}],"edm:TimeSpan":{"@rdf:about":"1999-2025","edm:begin":{"@xml:lang":"en","#text":"1999"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-NETHADAE","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2007","dc:creator":["Fajdiga, Matija","Nagode, Marko","Veber, Boštjan"],"dc:format":[{"@xml:lang":"sl","#text":"številka:10"},{"@xml:lang":"sl","#text":"14 strani"},{"@xml:lang":"sl","#text":"letnik:53"},{"@xml:lang":"sl","#text":"str. 621-634"}],"dc:identifier":["ISSN:0039-2480","COBISSID:10330907","URN:URN:NBN:SI:doc-NETHADAE"],"dc:language":["en","sl"],"dc:publisher":[{"@xml:lang":"sl","#text":"Association of Mechanical Engineers and Technicians of Slovenia et al."},{"@xml:lang":"sl","#text":"Zveza strojnih inženirjev in tehnikov Slovenije et al."}],"dc:subject":[{"@xml:lang":"sl","#text":"napovedovanje"},{"@xml:lang":"sl","#text":"numerično modeliranje"},{"@xml:lang":"sl","#text":"okvare"},{"@xml:lang":"sl","#text":"zanesljivost"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Napoved zbirnega števila okvar popravljivega izdelka na podlagi poteka delovanja| Prediction of the cumulative number of failures for a repairable system based on past performance|"},"dc:description":[{"@xml:lang":"sl","#text":"The prediction of the cumulative number of failures for a repairable system isan important topic in reliability theory. A repairable system may end up in one of the three possible states after a repair: 'as good as new', 'as bad as old' and 'better than old but worse than new'. Current probabilistic models used in repairable system analysis account for the first two states, but they do not properly apply to the last one, which is more common in practice. In this paper, a robust solution to a probabilistic model that is applicable to all of the three after repair states, called generalized renewal process (GRP), is presented. This research demonstrates that the GRP based on an m-fold Weibull mixture offers a general approach to modeling complex repairable systems and discusses application of the EM algorithm to estimation of the GRP parameters. This paper also presents a review of the standard GRP based on two-parameter Weibull distribution. The GRP with m mixture components distributions is compared to the standard GRP by calculating the expected cumulative number of failures and the error function.It is shown that the proposed GRP solution with a Weibull mixture accurately describes the failure data and it is suitable for predicting failures based on the past performance of the system, even when a small amountof failure data is available"},{"@xml:lang":"sl","#text":"Napoved zbirnega števila okvar popravljivega izdelka je pomembna tema v teoriji zanesljivosti. Popravljiv izdelek je lahko po opravljenem popravilu v treh možnih stanjih: 'dober kot nov', 'slab kot star' in 'boljši kot star toda slabši kot nov'. Običajni verjetnostni modeli za napovedovanje pričakovanega števila okvar temeljijo na prvih dveh stanjih, zato so neprimerni za opis zadnjega stanja, ki je bolj pogosto v praksi. V prispevku je predstavljena robustna rešitev verjetnostnega modela, t.i. splošni obnovitveni proces (SOP), ki je omogoča predstavitev vseh treh stanj izdelka po popravilu. Raziskave kažejo, da je s SOP na osnovi mešanice m-tih Weibullovih porazdelitev omogoča splošen pristop k opisu kompleksnih popravljivih izdelkov in podaja uporabo algoritmom matematičnega pričakovanja (EM) za oceno neznanih parametrov. V prispevku je predstavljen tudi standardni SOP na podlagi dvoparametrične Weibullove porazdelitve. SOP na osnovi mešane porazdelitve z m komponentami in standardni SOP primerjamo z izračunom pričakovanega števila okvar in funkcije napake. Na podlagi rezultatov lahko sklepamo, da predlagan SOP na osnovi mešanice Weibullovih porazdelitev točno opisuje izmerjene vrednosti okvar in je primeren za napovedovanje okvar na podlagi predhodnega poteka delovanja izdelka, kljub omejenemu številu razpoložljivih podatkov o okvarah"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-NETHADAE","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-NETHADAE"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-NETHADAE/df359525-b1ec-40fc-beb7-633703e449b4/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Fakulteta za strojništvo"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-NETHADAE/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-NETHADAE"}}}}