Longitudinal automatic control system for a light weight aircraft

Journal Title: INCAS BULLETIN - Year 2016, Vol 8, Issue 4

Abstract

This paper presents the design of an automatic control system for longitudinal axis of a light weight aircraft. To achieve this goal it is important to start from the mathematical model in longitudinal plane and then to determine the steady-state parameters for a given velocity and altitude. Using MATLAB Software the mathematical model in longitudinal plane was linearized and the system transfer functions were obtained. To determine the automatic control design we analyzed the stability of the linearized model for each input. After the stability problem was solved, using MATLAB-Simulink Software we designed the control system architecture and we considered that the objective for a stable flight was to continuously adjust the pitch angle θ through control of elevator and velocity through control of the throttle. Finally, we analyzed the performance of the designed longitudinal control system and the results highlighted in graphs outline that the purpose for which it was designed was fulfilled.

Authors and Affiliations

Cristian VIDAN, Silviu Ionut BADEA

Keywords

Related Articles

Aerodynamic Performance of Micro Aerial Wing Structures at Low Reynolds Number

Corrugations are folds on a surface as found on wings of dragon fly insects. Although they fly at relatively lower altitudes its wings are adapted for better aerodynamic and aero-elastic characteristics. In the present w...

STRESS AND MODAL ANALISYS REPORT FOR AVERT PROGRAM

This report presents a modal and a static analysis of the assembly wing-flap ,using the finite element software’s ANSYS 11 PATRAN-NASTRAN 2007. The geometry was created in Catia V5 R18and imported. The results from the m...

Dichotomic Structure of DAEs Solutions for the Aircraft Control

The paper has its roots in earlier studies focused on DAEs solutions, for the aircraft flight control and intends to be a synthesis of them. The main goal is to structure the solution for the control laws so as to derive...

STUDIES ON FLUTTER PREDICTION

The purpose of this paper is to study the instability of the dynamic flutter. The justification is expressed by the fact that the occurrence of flutter within the aircraft’s flight envelope results in irreversible struct...

Constant-Power Engines in Flights to L[sub]4[/sub] point of the Earth-Moon System

The transfer is studied in the context of the classical Circular Restricted Three-Body Problem. The initial state is on a geosinchronous orbit and the terminal state is the L4 triangular Lagrangian point. The use of cont...

Download PDF file
  • EP ID EP249405
  • DOI 10.13111/2066-8201.2016.8.4.13
  • Views 64
  • Downloads 0

How To Cite

Cristian VIDAN, Silviu Ionut BADEA (2016). Longitudinal automatic control system for a light weight aircraft. INCAS BULLETIN, 8(4), 157-164. https://europub.co.uk/articles/-A-249405