20.500.12556/RUL-102248 Razvoj dvosmerno delujoče torne zapore za zapornico Development of a dual friction blocking device for a ramp Diplomska naloga obravnava problem razvoja zavornega sistema za trinožno zapornico. Zavorni sistem naj bi bil preprost, učinkovit, lahek za uporabo in vzdrževanje ter cenovno ugoden. Deloval naj bi v obe smeri vrtenja. Ker torna zavora in torna zapora ne ustrezata omenjenim zahtevam, razvijemo unikaten zavorni sistem s spremembo oblike nihalke torne zapore, tako, da ta učinkovito zavira gibanje v obe smeri. V nadaljevanju določimo obremenitve celotnega zavornega sistemu. Najbolj obremenjen element, pritrdilni zatič, analitično vrednotimo na upogibne in vzvojne napetosti. Učinkovitost delovanja dvosmerne torne zapore tudi analitično preverimo. Izračun velikosti kontaktnega tlaka in napetosti v nihalki v stiku torne plošče nihalke izvedemo z numerično analizo po metodi končnih elementov. This thesis examines the problem of developing a dual braking system for a three-legged ramp. The braking system should be simple, easy to use and to maintain and also reasonably priced. It ought to work in both ways of rotation. Since nor conventional friction blocking device nor a conventional friction brake meet these criteria, we developed a unique braking system by changing the shape of friction blocking device's pendulum. Next, we determined the load in the entire braking system. Using analytic stress analysis, we quantitatively determined the size of bending and torsional stress in the system's most loaded element−the fixing pin. Thereafter, we determined the braking efficiency of the dual friction blocking device. Numerical analysis with the finite element method was then performed to determine the intensity of contact pressure and stress in the pendulum, when the latter is in contact with a moving surface. torna zapora torna zavora pritrdilni zatič trdnostna analiza numerična analiza metoda končnih elementov friction blocking device friction brake fixing pin stress analysis numerical analysis finite element method true false false [U. Delević] Slovenski jezik Angleški jezik Zaključna naloga 2018-07-27 10:06:57 2018-07-27 10:07:01 2023-10-18 11:44:04 0000-00-00 00:00:00 2018 0 Ljubljana 0 XII, 23 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 519.61:62-597.7(043.2) 206127 16166171 1928.pdf 1928.pdf 1 A7439FA46575B668CC2E70A9A20280C1 a8415564b3d6b9f9009f980a12cf6247a76b4c292cbec0a48d4a59bae1371916 7d7ef936-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=112534 Fakulteta za strojništvo 0 0 0