{"?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-3AAAR0EV/63d48384-fe10-402b-888d-015e4858b0b8/HTML","dcterms:extent":"51 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-3AAAR0EV/2fd9182c-2c14-4675-9308-f411fe605c0e/PDF","dcterms:extent":"509 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-3AAAR0EV/6d0837ee-6352-4597-91ef-a68684d2fec2/TEXT","dcterms:extent":"54 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-3AAAR0EV","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2004","dc:creator":["Bučar, Tomaž","Fajdiga, Matija","Janežič, Miha","Pangeršič, Primož"],"dc:format":[{"@xml:lang":"sl","#text":"14 strani"},{"@xml:lang":"sl","#text":"številka:2"},{"@xml:lang":"sl","#text":"letnik:50"},{"@xml:lang":"sl","#text":"str. 80-93"}],"dc:identifier":["ISSN:0039-2480","COBISSID:7334683","URN:URN:NBN:SI:doc-3AAAR0EV"],"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":"CAD/CAM"},{"@xml:lang":"sl","#text":"konstruiranje"},{"@xml:lang":"sl","#text":"metode končnih elementov"},{"@xml:lang":"sl","#text":"načrtovanje"},{"@xml:lang":"sl","#text":"načrtovanje preskusov"},{"@xml:lang":"sl","#text":"numerična analiza"},{"@xml:lang":"sl","#text":"procesi konstruiranja"},{"@xml:lang":"sl","#text":"zavore"},{"@rdf:resource":"http://www.wikidata.org/entity/Q1534839"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Vključitev numeričnih analiz v zgodnjih fazah konstrukcijskega postopka| Introducing numerical analysis in the early phases of the design process|"},"dc:description":[{"@xml:lang":"sl","#text":"Decisions made during the product development process have a significant influence on factors such as costs, performance, reliability, safety and the environmental impact of a product. However, since the knowledge of all the design requirements and constraints during this early phase of a product's life cycle is usually imprecise, approximate or unknown, the designer's decision-making is a very demanding task. Faced with such complexity, individual designers have restricted themselves to narrow, well-defined sub-tasks and, as a result, progress in this area has been patchy and spasmodic. In many cases, product design has been improved by the help of computer-aided design (CAD) and structural analyses based on the finite-element method (FEM). These two methods, coupled together, allow the calculation of mechanical quantities (such as stresses, deformations and contact pressures) and the investigation of the different behaviour of products with various designs. Such quantities can also be measured by means of in-vitro tests, but the advantage of CAD-FEM is the possibility of changing the geometrical and material properties of the product and evaluating its different behaviour before manufacturing prototypes. However, because the numerical models are based on many suppositions and restrictions, without proper interpretation the finite-element analysis (FEA) results are also of almost no use. Thus, in this article a method of acquiring a reference database, which serves for FEA results validation, is suggested. The procedureof building a suitable reference database is demonstrated by means of two examples, a car's handbrake and brake pedal"},{"@xml:lang":"sl","#text":"Odločitve, sprejete v razvojnem postopku izdelka, bistveno vplivajo na končno ceno, zmogljivost, zanesljivost, varnost in vpliv izdelka na okolico. Ker je poznavanje konstrukcijskih zahtev in omejitev v zgodnjih fazah proizvodnega postopka izdelka pogosto omejeno, je sprejemanje vsakršnih odločitev za konstrukterja zelo zahtevno. Soočeni s tako zapletenostjo so se posamezni konstrukterji omejili na ozke in dobro opredeljene podnaloge, kar ima za posledico neenotnost napredka na tem področju. V mnogih primerih je bil razvojni postopek izboljšan z računalnisko podprtim konstruiranjem (RPK) in tehnikami numeričnih vrednotenj, kakor je metoda končnih elementov (MKE). Združitev obeh postopkov omogoča izračun napetostno-deformacijskih stanj izdelka in njegovo obnasanje pri različnih oblikovnih variantah. Podatke o napetostno-deformacijskih stanjih lahko pridobimo tudi z eksperimentalno analizo fizičnih preizkušancev, toda prednost postopka RPK-MKE je moznost spreminjanja oblikovnih in materialnih parametrov izdelka ter takojšnja numerična vrednotenja pred izdelavo fizičnih prototipov. Ker so računalniski modeli zgrajeni na podlagi mnogih predpostavk in omejitev, tudi rezultati analiz z metodo končnih elementov brez ustrezne razlage nimajo prave vrednosti. V prispevku je zato predlagana metoda za pridobitev referenčne baze podatkov, na podlagi katere poteka vrednotenje rezultatov numeričnih izračunov. Postopek gradnje baze podatkov je prikazan na konkretnem primeru ročne zavore in zavornega pedala osebnega vozila"}],"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-3AAAR0EV","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-3AAAR0EV"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-3AAAR0EV/2fd9182c-2c14-4675-9308-f411fe605c0e/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-3AAAR0EV/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-3AAAR0EV"}}}}