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Vpliv zračnosti na aerodinamično stabilnost poenostavljenega modela letalskega krila
ID Plantarič, Adam (Author), ID Brojan, Miha (Mentor) More about this mentor... This link opens in a new window

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Abstract
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.

Language:Slovenian
Keywords:frfotanje kril, frfotanje aeroprofila, nelinearno frfotanje, aeroelastičnost, dinamična stabilnost
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[A. Plantarič]
Year:2023
Number of pages:XXIV, 79 str.
PID:20.500.12556/RUL-145635 This link opens in a new window
UDC:629.7:533.69(043.2)
COBISS.SI-ID:151553027 This link opens in a new window
Publication date in RUL:27.04.2023
Views:568
Downloads:95
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Secondary language

Language:English
Title:Influence of backlash on the aerodynamic stability of a simplified airfoil model
Abstract:
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.

Keywords:wing flutter, airfoil flutter, nonlinear flutter, aeroelasticity, dynamic stability

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