20.500.12556/DKUM-71426 Izboljšave konstrukcije klešč ravnalnega stroja magistrsko delo Improvements in the construction of the stretching machine V magistrski nalogi je prikazan potek analize klešč ravnalnega stroja. Na obstoječi konstrukciji so se zaradi neprimerno oblikovanega konstrukcijskega detajla pojavile poškodbe. Cilj naloge je bil izboljšati konstrukcijo klešč na način, ki kar se da zniža verjetnost utrujenostnega zloma komponente. Opravljene so bile trdnostne analize modela, optimizacija topologije ter analiza življenjske dobe konstrukcije. Obstoječo konstrukcijo klešč ravnalnega stroja smo analizirali s programskimi paketi Simulia Abaqus CAE, Simulia fe-safe ter Caess ProTOp. Izračuni temeljijo na podlagi metode končnih elementov. S prilagoditvijo geometrijskih detajlov ter upoštevanjem rezultatov optimizacijskega orodja smo znižali koncentracije napetosti. To kaže tako primerjava napetostnih polj numeričnih analiz obstoječe in izboljšane konstrukcije, kot tudi primerjava življenjskih dob obeh modelov. In the following master thesis, the process of numerical analysis of pliers as a part of straightening machine is made. On the existing construction certain damage has been induced, because of its inappropriately construction design. The aim of the work has been to ameliorate the construction of the pliers in a way that the possibility of fatigue fracture of the component would be as low as possible. Strength analysis of a model, topology optimization and life expectancy analysis of the construction have been done. An already existing pliers construction of the straightening machine has been simulated with help of Simulia Abaqus CAE, Simulia fe-safe and Caess ProTOp software packages. All calculations are based on the method of finite elements. By adjusting the geometrical details and by considering the results of optimization tool, we were able to lower the stress concentrations. That claim is proved both by comparing stress fields of old and ameliorated construction and by life expectancy comparison of both models. ravnalni stroj klešče dimenzioniranje numerična simulacija utrujanje stretching machine pliers dimensioning numerical simulation fatigue true true false [T. Fortin] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2018-08-13 11:07:44 2018-08-30 11:24:17 2022-08-01 20:53:29 2019-08-06 03:15:26 2018 0 Maribor 0 Maribor X, 43 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.881.4-11(043.2) 22187286 URN:SI:UM:DK:ELHDZA4N MAG_Fortin_Tadej_2018.pdf MAG_Fortin_Tadej_2018.pdf 1 C9639B901C3EB165876507CDB8F83DE3 27972da6ae67a1648486be598b07984fc030408dee2f1e9a49294f987fdd5dee 37e45eb9-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/a86dceb5-b914-4392-9500-62505a31434a https://dk.um.si/Dokument.php?lang=slv&id=128092 Fakulteta za strojništvo 0 0 0