20.500.12556/RUL-109673 Mehanska analiza vpenjala za vpetje ulitka Mechanical analysis of clamps for clamping castings Izvedena je bila trdnostna in frekvenčna analiza obstoječe vpenjalne naprave z varjenimi spoji in modificirane vpenjalne naprave z vijačnimi spoji. Ker je vpenjalna naprava geometrijsko kompleksen sestav, je bil izdelan poenostavljeni geometrijski model sestava. Analizirani so bili obremenitveni pogoji v fazi mehanske obdelave in določeni robni pogoji, ki so upoštevani v numeričnem modelu. Trdnostna in frekvenčna analiza je bila izvedena po metodi končnih elementov v programskem okolju ABAQUS. Ker varjena izvedba vpenjala izpolnjuje togostne zahteve, so bili rezultati analize vijačene izvedbe primerjani z rezultati analize varjene izvedbe. Primerjava obeh izvedb pokaže ustreznost modificirane izvedbe vpenjala z vijačnimi spoji. A strength and frequency analysis of the existing clamping device with welded joints and a modified clamping device with screw joints was performed. As the clamping device is a geometrically complex assembly, a simplified geometric model of the assembly was made. The load conditions in the mechanical treatment phase and certain boundary conditions that are taken into account in the numerical model, were analysed. The strength and frequency analysis was performed using the finite element method in ABAQUS. Since the welded version of the clamp meets the stiffness requirements, the results of the analysis of the screwed version were compared with the results of the welded-assay analysis. A comparison of both versions shows the relevance of the modified version of the clamp with screw joints. togost konstrukcije mehanska simulacija metoda končnih elementov programsko okolje ABAQUS frekvenčna analiza design stiffness mechanical simulation finite element method ABAQUS software frequency analysis true false false [M. Kopač] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2019-09-06 14:11:01 2019-09-06 14:11:01 2023-10-24 09:15:34 0000-00-00 00:00:00 2019 0 Ljubljana 0 XXIV, 46 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2021-08-28 621.74:62-229.31:519.61(043.2) 216063 16858907 3951.pdf 3951.pdf 1 0258B3D67FF518547F6EC9AFFE7CAD12 a5b15176f9de7646dd0cffcd8b0acfb5f9647ab8f38846e16030792ff48c6dd3 ecf2324b-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=121258 Fakulteta za strojništvo 0 0 0