Automatic removal of the plane from a spin using fuzzy logic controller

Abstract

The paper presents a concept of automatic control system recovering an aircraft from the spin using fuzzy logic controller. Control system causing: stall, spin, spin recovery, dive recovery and switching on classic heading and altitude autopilots, was created in Matlab – Simulink software, which was connected to the flight simulator X-Plane. During tests developed control algorithms were checked and tuned. At the end graphs of flight parameters recorded during simulation were analyzed, and properties of designed control system were evaluated. Particular attention was paid to the design of a fuzzy logic controller stopping autorotation of the aircraft. On the output it controlled the position of the rudder, while on input it received a signal being a function of the angular velocity of the aircraft.

Unmanned aircraft automatic flight control algorithm in an Immelmann manoeuvre

“…The concept of an automatic flight control for the Immelmann comes from the authors' previous studies and so it is only briefly presented in this paper for clarity and a better understanding of the overall process (Rogalski et al, 2019;Plewka, 2019;Prusik, 2019;Rogalski, 2018).…”

“…Figure 9 shows a generic structure of a test rig used for identification of the dynamics and parameters of the aircraft models and the testing of the developed control algorithms. The simulation campaign was conducted using an SU-35S aircraft, whose dynamic model is implemented in X-plane flight simulator (Plewka, 2019;Prusik, 2019).…”