Volume – 3 Issue – 1 Article – 3

Examining the flight quality of an aircraft to ensure the stability of the aircraft,
increase maneuverability, and make the aircraft easier to control by the pilot
necessitates an examination of the natural stability of the system. Within the
scope of the paper, the frequency domain response of the F-16 aircraft
dynamics is analyzed using Simulink models considering two different flight
regimes because the frequency-domain methods have many distinct and
important advantages over time-domain methods. Aerodynamic, propulsive,
and atmospheric databases are used to create the nonlinear model. The trim
analysis for cruise flights is carried out to obtain trim parameters. The aircraft
is numerically linearized using the small perturbation theory. The linearized
dynamics for each trim condition are used to create transfer functions for
each input. The linear model is subsequently examined in the frequency
domain to obtain information about the dynamic behavior of the aircraft, and
flight quality analysis was examined by considering the lateral and longitudinal
modes of the aircraft by international standards. It has been clearly
understood the stability augmentation system design has critical importance
for the modes with unstable or long steady-state duration.

Frequency Domain Analysis
F-16 Aircraft
Lateral Motion
Longitudinal Motion
System Dynamics

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