Aerodinamička optimizacija trokrilca u idealnom fluidu

master's thesis

• Title (english): Aerodynamic optimization of a triplane in an ideal fluid
• Author: Anamaria Uroda
• Mentor: Dubravko Matijašević (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Aviation, Rocket and Space Technology; Aircraft Construction and Design

Abstract

Geometrijski neovisna analitička metoda za minimiziranje induciranog otpora korištena je za analizu optimalnih konfiguracija trokrilaca. Metoda opisuje nepoznatu distribuciju cirkulacije Euler-Lagrangeovim integralnim jednadžbama dobivenih varijacijskim
računom. Kernel koji se generira ima singularitet samo prvog reda te je metoda računalno učinkovita, idealna za rane idejne faze projektiranja letjelice. Analizirane su neplanarne konfiguracije trokrilaca sa dvije vrste krila, ravno krilo i "box"
krilo te ovisnost zadanih krila o rasporedu u konfiguraciji te ovisnost konfiguracija o vertikalnom aspektnom odnosu.

Abstract (english)

Configuration-invariant analytical formulation for the induced drag minimization of triplane non-planar systems is presented. Following a variational approach, the resulting Euler-Lagrange integral equation in the unknown circulation distribution is obtained. The kernel presents a singularity of the first order and the method is computationally efficient, ideal for the early conceptual phases of the design. Different triplane configuration are obtained using strait lifting line (classical lifting line) and closed, "box", lifting line. Configurations are varied with respect to vertical aspect ratio and distribution of different lifting lines inside configuration.

• Keywords: Euler-Lagrangeove jednadžbe; varijacijski račun; optimizacija trokrilca u idealnom fuidu; superformula; "box" krilo.
• Keywords (english): ELE; variational approach; superformula; optimization of triplane in ideal fluid; "box" wing
• Language: croatian
• URN:NBN: urn:nbn:hr:235:866722
• Study programme: Title: Aeronautical Studies; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka zrakoplovnog inženjerstva (magistar/magistra inženjer/inženjerka zrakoplovnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-07-09 10:20:43