20.500.12556/RUL-186801 Mehanski simulatorji zategovanja Mechanical joint simulators Diplomsko delo obravnava mehanske simulatorje zategovanja, ki se uporabljajo za preverjanje in testiranje industrijskih vijačnikov. Namen raziskave je bil analizirati obstoječe izvedbe simulatorjev, izbrati najprimernejši tlačni element ter razviti zasnovo simulatorja z nastavljivo togostjo. V teoretičnem delu so predstavljene osnove vijačnih spojev, vpliv trenja na razmerje med navorom in osno silo ter pregled obstoječih mehanskih simulatorjev. Primerjalna analiza različnih tlačnih elementov je pokazala, da so krožnikaste vzmeti zaradi visoke nosilnosti, modularnosti in dolge življenjske dobe najprimernejša rešitev. Izvedeni so bili analitični preračuni osne sile, vpliva trenja in dimenzioniranja ključnih komponent simulatorja. Ustreznost analitičnih modelov je bila preverjena z eksperimentalnimi meritvami pri različnih nazivnih momentih. Rezultati potrjujejo dobro ujemanje med izračunanimi in izmerjenimi vrednostmi ter visoko ponovljivost delovanja simulatorja. Na podlagi ugotovitev je bila razvita zasnova novega mehanskega simulatorja zategovanja, ki omogoča prilagajanje togosti za simulacijo različnih tipov vijačnih spojev. Predlagana rešitev predstavlja izboljšavo obstoječih mehanskih simulatorjev in omogoča zanesljivejše ter bolj prilagodljivo preverjanje industrijskih vijačnikov. This bachelor's thesis investigates mechanical joint simulators used for testing and calibrating industrial screwdrivers. The objective was to analyse existing simulator concepts, identify the most suitable force-generating element, and develop a concept of a simulator with adjustable stiffness. The theoretical part presents the fundamentals of bolted joints, the influence of friction on the relationship between tightening torque and preload, and a review of commercially available mechanical simulators. A comparative analysis showed that Disc Springs provide the most suitable solution due to their high load capacity, modularity, compact design, and long service life. Analytical calculations of preload, friction losses, and the dimensioning of key simulator components were performed. The analytical models were validated through experimental measurements at different torque levels. The results demonstrated good agreement between calculated and measured values together with high repeatability of the simulator. Based on these findings, a concept of a new mechanical joint simulator with adjustable stiffness was developed, enabling the simulation of different joint characteristics using a single device. The proposed design improves the flexibility and applicability of conventional mechanical simulators while maintaining high measurement reliability and repeatability. mehanski simulatorji zategovanja vijačni spoji krožnikaste vzmeti osna sila navor trenje testiranje mechanical joint simulators bolted joints disc springs preload tightening torque friction testing true false false [Ž. Verlinšek] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-05 08:33:21 2026-09-05 08:33:23 2026-09-07 09:15:50 0000-00-00 00:00:00 2026 0 Ljubljana 0 XX, 52 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.383.4:621.882(043.2) 289391 290149891 48931.pdf 48931.pdf 1 BAA9B19894510C692E31FDA79A3E105D 880bcd2b1abb6861ef579c21d38f44ab92e9f821bf61caecc2bd95d3f916e278 b002c804-a8f3-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246172 Fakulteta za strojništvo 0 0 0