{"?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-GYDWU65D/179dabe4-1632-4d13-b745-8af366b279c8/PDF","dcterms:extent":"1779 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-GYDWU65D/5e164342-9db8-417b-9468-1ce8447583f1/TEXT","dcterms:extent":"28 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-GYDWU65D","edm:isNextInSequence":{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:doc-RPAGXNHT"},"dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2015","dc:creator":["Liebrecht, Jürgen","Sauer, Bernd","Schwarze, Hubert","Si, Xiaojiang"],"dc:format":[{"@xml:lang":"sl","#text":"številka:6"},{"@xml:lang":"sl","#text":"letnik:61"},{"@xml:lang":"sl","#text":"str. 399-408, Si 72"}],"dc:identifier":["ISSN:0039-2480","COBISSID:14054683","URN:URN:NBN:SI:doc-GYDWU65D"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Zveza strojnih inženirjev in tehnikov Slovenije et al."},"dc:subject":[{"@xml:lang":"sl","#text":"izgube zaradi upora"},{"@xml:lang":"sl","#text":"izgube zaradi vrtinčenja"},{"@xml:lang":"sl","#text":"konični kotalni ležaji"},{"@xml:lang":"sl","#text":"simulacije CFD"},{"@xml:lang":"sl","#text":"torni moment"},{"@xml:lang":"sl","#text":"vertikalne osi"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Investigation of drag and churning losses on tapered roller bearings|"},"dc:description":[{"@xml:lang":"sl","#text":"Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses"},{"@xml:lang":"sl","#text":"Kotalni ležaji so pomembni strojni elementi, ki se uporabljajo v najrazličnejših tehničnih sistemih. Njihova prednost v primerjavi z drsnimi ležaji je v manjšem tornem momentu. To je parameter, ki se uporablja za kvantifikacijo izgub pri kotalnih ležajih. Del izgub povzročajo kontaktne sile med kotalnimi elementi in tekalno površino, kletko in obročem. Drugi del so izgube zaradi upora in vrtinčenja, ki jih povzroča izpodrivanje maziva. Ta del je odvisen od delovnih pogojev in lahko močno vpliva na celoten torni moment, zato ga je treba upoštevati pri izračunu izgub kotalnih ležajev"}],"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-GYDWU65D","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-GYDWU65D"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-GYDWU65D/179dabe4-1632-4d13-b745-8af366b279c8/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-GYDWU65D/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-GYDWU65D"}}}}