Modeling and Validation of BADA 4 Piston Aircraft Performance

master's thesis

• Title (croatian): Modeliranje i validacija performansi BADA 4 elisno-klipnog pogonskog sustava
• Author: Petar Papoči
• Mentor: Karolina Krajček Nikolić (mentor)
• Committee member: Anita Domitrović (predsjednik povjerenstva)
• Committee member: Petar Andraši (član povjerenstva)
• Committee member: Ernest Bazijanac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Aeronautics); (Department of Aeronautics); Zagreb
• Defense date and country: 2020-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

Increasing trend of air traffic leads to the congested airspace and overwhelmed air navigation service providers. New procedures and technology are implemented every day, but with rigorous testing. Simulations are a part of that testing, but every simulation is as good as its model. Within the traineeship in Eurocontrol, the current Base of Aircraft Data Family 4 (BADA 4) is analysed and searched for the possible improvements in the segment of the piston propeller powered aircraft. The model... More for these aircraft isn’t as good as it could be, and at this point it is necessary to improve it due to the fact that the number of general aviation aircraft (mostly piston powered) is increasing. During research and validation of the initial model it was determined that some improvements need to take place in engine power modelling alongside with the propeller efficiency modelling. Cruise data as a primary source for drag polar coefficients and vertical speed conversion to the rate of climb were introduced. With all of these corrections, or improvements, correct performance data was reproduced to resemble the performance data published in the aircraft’s manual. At a certain point to gain an insight into the published performance data, and to gain some additional data, two flight tests took place. As a result of flight tests, the published data was confirmed throughout usage of different data reduction methods. In conclusion, certain improvements were established, and proposed to the Eurocontrol team. Implementation of these improvements into the Eurocontrol BADA 4 tool will be done by Eurocontrol team at a certain point, if they determine that these proposed changes do bring a necessary improvement their model. Less

Abstract (croatian)

Povećanje zračnog prometa i trend porasta dovodi do zagušenja zračnog prostora i preopterećenja pružatelja usluga u zračnom prostoru. Nove procedure i tehnologije uvode se svakodnevno, ali uz vrlo kritična testiranja. Simulacije su dio tih testiranja, no svaka simulacija je dobra koliko i model koji koristi. Tijekom studentskoga stažiranja u Eurocontrol-u, trenutni Base of Aircraft Data Family 4 (BADA 4) model je analiziran i istraženi su mogući segmenti poboljšanja klipno elisnih... More zrakoplova. Model klipno elisnih zrakoplova nije dobar Koliko bi mogao biti, a u trenutno situaciji ga je potrebno poboljšati jer se povećava i broj zrakoplova generalne avijacije (uglavnom klipno elisni zrakoplovi). Tijekom istraživanja i analize trenutnog modela određeno je da je potrebno poboljšati model motora i model iskoristivosti elise. Podaci o krstarenju korišteni su kao primarni izvor podataka potrebnih za određivanje koeficijenta otpora zrakoplova u letu, također je dodana pretvorba vertikalne brzine u brzinu penjanja. Sa svim ovim poboljšanjima dobiveni su točni podaci o performansama u penjanju i krstarenju koji odgovaraju onim iz priručnika zrakoplova. Kao dodatan alat odrađena su dva ispitivanja u let una različitim zrakoplovima. Rezultati testiranja u letu potvrdili su ispravno korištenje metoda za obradu podataka nakon testiranja koje koriste i proizvođači zrakoplova. Zaključno, sva određena poboljšanja predložena su Eurocontrol-ovom timu koji radi na BADA projektu, te njihova implementacija u BADA alat bit će odrađena ako se ustanovi da su predložena poboljšanja dobra i pridonose poboljšanju njihova modela. Less

• Keywords: Eurocontrol; Base of Aircraft Data (BADA); BADA Family 4 (BADA 4); simulation; model; air traffic; airspace; piston engine; propeller; performance; flight test; data reduction methods
• Keywords (croatian): Eurocontrol; Base of Aircraft Data (BADA); BADA Family 4 (BADA 4); simulacija; model; zračni promet; zračni proctor; klipni motor; elisa; performance; ispitivanja u letu; metode obrade podataka nakon ispitivanja u letu
• Language: english
• URN:NBN: urn:nbn:hr:119:944678
• Study programme: Title: Aeronautics; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka aeronautike (magistar/magistra inženjer/inženjerka aeronautike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-11-27 13:30:31