20.500.12556/RUL-175617 Simulacija vpliva zaostalih napetosti na napetostno-deformacijski odziv nihajne roke pri avtomobilskem vzmetenju Simulation of the influence of residual stresses on the stress-strain response of a swing arm in an automotive suspension V uvodnem delu so predstavljene različne oblike avtomobilskega vzmetenja ter opis njihovega delovanja. Poseben poudarek je namenjen pločevinasti izvedbi. Problem, ki ga obravnavamo, izhaja iz napetostnih stanj, ki se v nihajni roki pojavijo med dejansko vožnjo in so posledica tako dinamičnih sil kot tudi zaostalih napetosti, nastalih zaradi mehanskega preoblikovanja med proizvodnjo. V nalogi smo opravili analitični preračun vzdolžnih, prečnih in navpičnih sil v različnih scenarijih vožnje (zaviranje, vožnja čez oviro, ovinek), nato pa izvedli računalniško simulacijo v programskem okolju Ansys. V okviru simulacij je bilo analiziranih osem kombinacij obremenitev, pri čemer smo jih izvajali dvakrat – brez upoštevanja zaostalih napetostiin z upoštevanjem le-teh. Rezultati so pokazali, da prisotnost zaostalih napetosti bistveno vpliva na napetostno polje v komponenti, še posebej v bližini vpenjalnih točk. Kritična mesta so jasno izražena v kombinacijah z močnim zaviranjem in prehodom čez večje ovire v ovinku, kar je ključno za nadaljnjo optimizacijo konstrukcije. In the introductory part, various types of automotive suspension systems and their operation are presented, with special emphasis on the sheet metal design. The main problem addressed in this thesis arises from the stress states that occur in the control arm during actual driving, which are the result of both dynamic forces and residual stresses caused by mechanical forming during manufacturing. The following section includes an analytical calculation of longitudinal, lateral, and vertical forces under different driving scenarios (braking, driving over an obstacle, cornering), followed by a computational simulation in the Ansys software environment. Eight load combinations were analyzed in the simulations, each evaluated twice – once without and once with consideration of residual stresses. The results showed that the presence of residual stresses significantly affects the stress distribution in the component, especially near mounting points. Critical areas are clearly expressed in combinations involving heavy braking and driving over larger obstacles in corners, which is crucial for further optimization of the structure. nihajna roka vzmetenje obremenitve zaostale napetosti simulacija numerična analiza control arm suspension loads residual stress simulation numerical analysis true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-11-06 08:30:24 2025-11-06 08:30:30 2025-12-13 03:48:35 0000-00-00 00:00:00 2025 0 0 XXVI, 58 str. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.178.32: 004.942(043.2) 278866 256674051 45658.pdf 45658.pdf 1 53D915C6B45197C657C5BBB131C5EC33 a2b41ae03e230b92d8936c53246c0bcba9fb12880576f1eb41babfcb66753791 270df9ca-bae2-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=221444 Fakulteta za strojništvo 0 0 0