(Publisher of Peer Reviewed Open Access Journals)

International Journal of Advanced Computer Research (IJACR)

ISSN (Print):2249-7277    ISSN (Online):2277-7970
Volume-5 Issue-20 September-2015
Full-Text PDF
Paper Title : Dynamic Flight Simulation of aircraft and its comparison to Flight tests
Author Name : Reza Khaki and Ali Gharibi
Abstract :

Nowadays obtaining data for air vehicles researches and analyses is very expensive and risky through the flight tests. Therefore using flight simulation is usually used for the mentioned researches by aerospace science researchers. In this paper, dynamic flight simulation has been performed by airplane nonlinear equations modelling. In these equations, aerodynamic coefficients and stability derivatives have an important role. Therefore, the stability derivatives for typical aircraft are calculated on various flight conditions by analytical and numerical methods. Flight conditions include of Mach number, altitude, angle of attack, control surfaces and CG position variations. The obtained derivatives are used in the form of look up table for dynamic flight simulation and virtual flight. In order to validate the simulation results, the under investigation maneuvres parameters are recorded during many real flights. The obtained data from flight tests are compared with the outputs of flight simulations. The results indicate that less than 13% differences are found in different parts of the maneuvres.

Keywords : Flight simulation, Loop maneuvre, Chandelle maneuvre, Flight test, Stability derivatives.
Cite this article : Reza Khaki and Ali Gharibi, " Dynamic Flight Simulation of aircraft and its comparison to Flight tests " , International Journal of Advanced Computer Research (IJACR), Volume-5, Issue-20, September-2015 ,pp.304-311.