20.500.12556/RUL-145635 Vpliv zračnosti na aerodinamično stabilnost poenostavljenega modela letalskega krila Influence of backlash on the aerodynamic stability of a simplified airfoil model V magistrskem delu analitično in numerično obravnavamo stabilnost poenostavljenega mehanskega modela letalskega krila v odvisnosti od hitrosti zračnega toka krila oziroma dinamičnega tlaka, ki deluje na krilo. Iščemo mejni dinamični tlak, pri katerem obravnavan sistem preide iz stabilnega v nestabilno območje. V delu predstavimo reševanje problema stabilnosti za linearni in nelinearni sistem. Opišemo teoretično ozadje in uporabo matematičnih metod, ki jih uporabimo za reševanje problema. Iz rezultatov razberemo, da ima zračnost v elastični podpori relativno velik vpliv na nihanje krila in na mejni dinamični tlak. In the master thesis, we analyticaly and numerically address stability of a simplified mechanical model of an airplane wing as a function of airflow velocity or dynamic pressure acting on the wing. We are searching for critical dynamic pressure, at which the considered system transitions from the stable to the unstable region. In the thesis, we present the solution of the stability problem for a linear and a nonlinear system. We describe theoretical background and application of mathematical methods, used to solve the problem. From the results, we see that the backlash in an elastic support has a relatively large effect on the wing oscillation and on the critical dynamic pressure. frfotanje kril frfotanje aeroprofila nelinearno frfotanje aeroelastičnost dinamična stabilnost wing flutter airfoil flutter nonlinear flutter aeroelasticity dynamic stability true false false [A. Plantarič] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-04-27 08:30:41 2023-04-27 08:30:44 2023-10-20 09:02:48 0000-00-00 00:00:00 2023 0 Ljubljana 0 XXIV, 79 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 629.7:533.69(043.2) 249171 151553027 23102.pdf 23102.pdf 1 BDDECC29A85A46B84F3BEE3B1FFA7F8D b87ca442fbfe4feaba03e42799b276462273bcffb3681c582bbd0d1a11e9c2c3 d7fdfa3b-e4c4-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=168586 Fakulteta za strojništvo 0 0 0