Dimenzioniranje novog krila postojećeg lakog zrakoplova

master's thesis

• Title (english): Sizing of new wing for existing light aircraft
• Author: Vidović Bojan
• Mentor: Milan Vrdoljak (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Aviation, Rocket and Space Technology

Abstract

U radu se definira novo krilo za postojeći zrakoplov Robin ATL na kojem se vrši preinaka na električni pogonski sustav. Fokus ovog rada je izrada novog krila s boljim aerodinamičkim karakteristikama za ovu verziju zrakoplova. Analize će se vršiti u programu XFLR5. Utjecaj trupa, repnih površina i stajnog trapa se zanemaruje. Da se dobiju referentne vrijednosti, analizirat će se postojeća krila čiji će se rezultati usporediti s rezultatima novog krila. Odabir parametra krila će se odraditi u 3 razine: prvo će se analizirati utjecaj geometrije krila na aerodinamičke karakteristike i temeljem toga će se odrediti geometrija krila. Nakon odabira geometrije krila na temelju rangiranja rezultata analize krila s različitim profilima odabrat će se profil za krilo. Zadnji dio analize je utjecaj wingleta na aerodinamičke karakteristike krila i taj dio analize će se napraviti za krilo odabrane geometrije i profila. Na kraju rada će se usporediti rezultati novog i starog krila.

Abstract (english)

In this thesis a new wing for an existing airplane „Robin ATL“ is defined. This airplane will have an electric propulsion system built in. The focus of this thesis is design of a new wing with better aerodynamic characteristics for this version of airplane. The analysis will be done in XFLR5. Influence of airplane body, tail surfaces and landing gear is not taken into account. Existing wing will be analyzed to obtain reference values for comparison with th new wing design. Wing parameter definition will be done in 3 levels: first the influence of wing geometry on aerodynamic characteristics of wing will be analyzed. Based on this, wing geometry will be defined. After that influence of the airfoils will be analyzed. Based on this results airfoil will be chosen. Lastly, the influence of the winglet on the wing characteristics is analyzed and it is done for the wing with previously determined geometry and airfoil. Results of the proposed new and old wing will be compared at the end of the thesis.

• Keywords: krilo; XFLR5; xfoil; panelna metoda; laminarni profil; metoda vrtložnih rešetki; wingleti
• Keywords (english): wing; XFLR5; xfoil; panel method; laminar airfoil; vortex lattice method; winglets
• Language: croatian
• URN:NBN: urn:nbn:hr:235:574194
• 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: 2019-05-28 09:27:37