Study And Design Aerodynamic Structure Of A Fixed-wing UAV Application:Study The Stability Of Control And Propulsion

Across many rescues,surveillance and the scientific application,there exists a broad need to perform terrain surveys and wide-area reconnaissance,for which unmanned aerial vehicles(UAVs)are increasingly popular.This thesis considers the task of using one or more UAVs to locate an object of interest in case that continuous viewing and rapidly tracking should it are lost for any reason.This study describes the trajectory optimization and the implementation of the model dynamic of Lear Jet.Firstly this work combines the trajectory generation,here have a many methods but I choose Bézier curve method to generate it,from this trajectory we can defined a lot of parameters(velocity,longitudinal angle,lateral angle),after the trajectory is generated we need control just four input commands(velocity,aileron angle,rudder angle,elevator angle)for tracking the trajectory,then the development of the classical and robust controllers,which is used for the model dynamic of autopilots.One of the important steps in the thesis is simulation of the non-linear dynamic model of the Lear Jet,which is simulating in MATLAB/Simulink environment.One strategy of the controller design implies development of the PID.Simulation results illustrate the performance of the designed controller.Simulation is performed for the nominal model of the Lear jet and for the model that includes PID controller and Washout filter in feedback.