Analiza ravnotežnog leta i statičke stabilnosti hidroaviona za četiri putnika

undergraduate thesis

• Title (english): Analysis of trimmed flight and static stability of four-passenger seaplane
• Author: Roko Bračić
• Mentor: Milan Vrdoljak (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Aviation, Rocket and Space Technology; Aircraft Construction and Design

Abstract

Tema ovog završnog rada je proračun aerodinamičkih koeficijenata normalne sile i momenta
propinjanja te analiza ravnotežnog leta i uzdužne statičke stabilnosti hidroaviona za četiri
putnika. Iz prilagođenog CAD modela određena je cjelokupna geometrija zrakoplova te
dimenzije koje su korištene u proračunu aerodinamičkih koeficijenata normalne sile i momenta
propinjanja. Nadalje, dobiveni koeficijenti korišteni su za analizu ravnotežnog leta u tri režima
leta: penjanje, horizontalni let i prilaz za slijetanje. Zatim je proračunat položaj neutralne točke,
analizirana je uzdužna statička stabilnost zrakoplova i raspon položaja središta mase pri cijelom
rasponu brzina u horizontalnom letu kao i za odabrane režime penjanja i spuštanja.

Abstract (english)

Topic of this paper is the calculation of aerodynamic coefficients of lift and pitching moment,
as well as the analysis of trimmed flight and static stability of a four passenger seaplane. The
complete geometry of the aircraft and the dimensions used in the calculation of the aerodynamic
coefficients of lift and pitching moment were determined from the adapted CAD model. These
coefficients were used for the analysis of trimmed flight in three flight regimes: climb, cruise
and landing approach. Furthermore, the position of neutral point was calculated and the
longitudinal static stability of the aircraft was analyzed. Also, the range of center of mass
positions throughout the entire speed range in level flight, as well as for climbing and
descending regimes, have been assessed.

• Keywords: hidroavion; moment propinjanja; performanse zrakoplova; ravnotežni let; uzdužna statička stabilnost; samogradnja
• Keywords (english): seaplane; pitching moment; aircraft performance; trimmed flight; longitudinal static stability; self-construction
• Language: croatian
• URN:NBN: urn:nbn:hr:235:772849
• Study programme: Title: Aeronautical Studies; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-26 23:13:27