20.500.12556/RUL-142428 Dinamično napenjanje niti iz steklenih vlaken Dynamic glass fiber roving tensioning Pri izdelavi poliestrskih cevi ojačenih s steklom na strojih za neprekinjeno navijanje filamentov se na mandrin simultano ovija tudi do 385 niti. Trenutno se sila v niti upravlja le z napenjalci, ki napenjajo vse niti naenkrat, ki pa ne opravljajo funkcije enakomernega in konstantnega individualnega napenjanja niti. Predstavljene so poliesterske cevi ojačene s steklom, njihova izdelava na strojih za neprekinjeno navijanje filamentov, steklena vlakna in uporaba Eitelweinove enačbe ob napenjanju niti. S programom Solidworks smo zasnovali dinamični napenjalec, ga umestili v trenutni sistem in na njem opravili preračune. Določili smo dve statični in eno dinamično komponento ter opravili izračune v enajstih točkah postavljenega koordinatnega sistema. Za vsako točko smo ugotovili silo, ki je potrebna, da je dinamična komponenta v njej uravnotežena. Zasnovan dinamični napenjalec je sposoben balansirati motnje v razponu vhodne sile v niti od 1,41 N do 13,73 N. Dosegli smo želeno, da dinamični napenjalec silo v niti poveča glede na velikost vhodne sile niti, bolj poveča manjšo vhodno silo kot pa poveča večjo vhodno silo. In the production of glass-reinforced polyester tubes on machines for continuous filament winding, up to 385 threads are wound simultaneously on the mandrel. Currently, the force in the threads is only managed by tensioners that tension all the threads at once, but which do not perform the function of uniform and constant individual thread tension. Glass-reinforced polyester tubes, their production on continuous filament winding machines, glass fibers and the use of the Eitelwein equasion for threads tensioning are presented. Using the Solidworks program, we designed a dynamic tensioner, placed it in the current system and performed calculations on it. We determined two static and one dynamic component and performed calculations in eleven points of the established coordinate system. For each point, we determined the force required to balance the dynamic component in it. The designed dynamic tensioner is able to balance disturbances in the range of input force in the threads from 1.41 N to 13.73 N. We have achieved the desired that the dynamic tensioner increases the force in the threads according to the size of the input force of the threads, it increases the smaller input force more than it increases greater input force. poliesterske cevi ojačene s steklom tehnologija za neprekinjeno navijanje filamentov steklena vlakna sila v niti napenjanje niti Eitelweinova enačba polyester tubes reinforced with glass continuous filament winding technology glass fibers force in the thread thread tension The Eitelwein equasion true false false [M. Ule] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-11-08 08:30:23 2022-11-08 08:30:31 2023-12-01 14:16:06 0000-00-00 00:00:00 2022 0 Ljubljana 0 XXII, 47 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.168(043.2) 248612 137609475 21439.pdf 21439.pdf 1 A36D5BC0EDF25E1705F9A84558D200B9 5bbdba0d64c30ac01331fcd1c18907acf83adf9e2b0b0f10d4f9299aa683ce59 20ec46b8-5f37-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=163803 Fakulteta za strojništvo 0 0 0