<?xml version="1.0"?><rdf: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-9KQ59ZUJ/2310862b-c26a-4a59-943b-afb9b88cf74f/PDF"><dcterms:extent>1863 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-9KQ59ZUJ/bdb119a2-a804-4c37-849e-ce1da384e4d2/TEXT"><dcterms:extent>0 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="1999-2026"><edm:begin xml:lang="en">1999</edm:begin><edm:end xml:lang="en">2026</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:DOC-9KQ59ZUJ"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A" /><dcterms:issued>2026</dcterms:issued><dc:creator>Chai, Guoying</dc:creator><dc:creator>Shi, Xiaotian</dc:creator><dc:creator>You, Xiaomei</dc:creator><dc:creator>Zhang, Zilong</dc:creator><dc:format xml:lang="sl">številka:3/4</dc:format><dc:format xml:lang="sl">letnik:72</dc:format><dc:format xml:lang="sl">str. 84-93</dc:format><dc:identifier>ISSN:0039-2480</dc:identifier><dc:identifier>DOI:10.5545/sv-jme.2025.1509</dc:identifier><dc:identifier>COBISSID_HOST:278075139</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-9KQ59ZUJ</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="sl">= Association of Mechanical Engineers and Technicians of Slovenia etc.</dc:publisher><dc:publisher xml:lang="sl">Zveza strojnih inženirjev in tehnikov Slovenije etc.</dc:publisher><dcterms:isPartOf xml:lang="sl">Strojniški vestnik</dcterms:isPartOf><dc:subject xml:lang="en">clearance optimization</dc:subject><dc:subject xml:lang="en">crankshaft-bearing system</dc:subject><dc:subject xml:lang="en">deformation coordination</dc:subject><dc:subject xml:lang="sl">hidrodinamično mazanje</dc:subject><dc:subject xml:lang="en">hydrodynamic lubrication</dc:subject><dc:subject xml:lang="sl">optimizacija zračnosti</dc:subject><dc:subject xml:lang="sl">sistem ročične gredi in ležajev</dc:subject><dc:subject xml:lang="en">stiffness matching</dc:subject><dc:subject xml:lang="en">structure optimization</dc:subject><dc:subject xml:lang="sl">strukturna optimizacija</dc:subject><dc:subject xml:lang="sl">ujemanje togosti</dc:subject><dc:subject xml:lang="sl">usklajenost deformacij</dc:subject><dcterms:temporal rdf:resource="1999-2026" /><dc:title xml:lang="sl">Structural optimization of an engine crankshaft-bearing system based on deformation coordination analysis|</dc:title><dc:description xml:lang="sl">This study investigates the deformation coordination of an engine crankshaft-bearing system and presents a tolerance-based method to improve stiffness matching. First, a continuous-beam analytical model is developed to derive bearing support reactions, with its accuracy being validated through a three-dimensional finite element model under worst-case loading conditions. Then the Reynolds equation is combined with the Gumbel boundary condition to explain hydrodynamic effects. Based on the journal eccentricity, the load-carrying coefficient is described by fitting an exponential function. Finally, using the relative bearing clearance as the design variable, a clearance-optimization model is formulated to minimize the variance in support displacements. The results show that the sequential quadratic programming method after particle swarm optimization can improve the deformation coordination by 31 %. This method can provide a practical and computationally efficient guideline for improving structural stiffness matching and lubrication performance in crankshaft-bearing system design</dc:description><dc:description xml:lang="sl">V študiji je obravnavana usklajenost deformacij sistema ročične gredi in ležajev motorja in predstavljen pristop na osnovi toleranc za izboljšanje ujemanja togosti. Najprej je bil razvit analitični model zveznega nosilca za določitev reakcij v ležajnih podporah, njegova natančnost pa je potrjena s tridimenzionalnim modelom končnih elementov v najslabših obremenitvenih pogojih. Nato je bila Reynoldsova enačba združena z Gumbelovim robnim pogojem za razlago hidrodinamičnih učinkov. Na podlagi ekscentričnosti ležajne puše je bil nosilni koeficient opisan s prilagoditvijo eksponentne funkcije. Končno je bil oblikovan optimizacijski model zračnosti, pri katerem je relativna zračnost ležaja uporabljena kot projektna spremenljivka, z namenom minimizacije variance pomikov podpor. Rezultati kažejo, da metoda sekvenčnega kvadratnega programiranja po optimizaciji z rojem delcev izboljša usklajenost deformacij za 31 %. Metoda predstavlja praktične in računsko učinkovite smernice za izboljšanje ujemanja togosti in mazalnih lastnosti pri načrtovanju sistemov ročične gredi in ležajev</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:DOC-9KQ59ZUJ"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:DOC-9KQ59ZUJ" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:DOC-9KQ59ZUJ/2310862b-c26a-4a59-943b-afb9b88cf74f/PDF" /><edm:rights rdf:resource="http://rightsstatements.org/vocab/InC/1.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Univerza v Ljubljani, Fakulteta za strojništvo</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:DOC-9KQ59ZUJ/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:DOC-9KQ59ZUJ" /></ore:Aggregation></rdf:RDF>