Airline System Design
Pitch Control System
Overview
Overall, the control system design is simplified to allow for modelling in accommodation for simulation constraints. These constraints more specifically involve that of the tools at hand, the software capabilities and current knowledge with the hardware and software.
The pitch controller aims to create adjust angle of the aircraft and hence, the rear generates lift force. The controller finally will, therefore, stabilize with movements of the nose up and down. The rear horizontal stabilizer that is on an airplanes tail is what creates an elevator.
This elevator will be the input of the system in particularly expressed as the elevator deflection angle, 𝜹 and the output of the system will be the pitch angle, 𝜽 of the airplane.
Approach
The approach taken involved design and implementation of a commercial aircraft pitch control system using MATLAB and Simulink.
This system establishes a mathematical model of the aircraft's longitudinal dynamics, incorporating equations of motion derived under specific assumptions (constant velocity and altitude).
A state-space representation is then formulated, leading to the development of a full-state feedback controller.
MATLAB and Simulink are used for simulation, system analysis, and fine-tuning of a PID controller to meet design specifications such as rise time, settling time, and overshoot.
The final system is evaluated through simulations, revealing some limitations in meeting all requirements, particularly regarding settling time.
The report concludes with recommendations for future improvements, including integrating additional compensators and considering more realistic disturbances.
The University of Sydney
Vishant Prasad