Study of the Effect of Canopy Lateral Incidence Angle on Autonomous Guidance and Control of Parafoil-Payload System

Please enable javascript in your browser.

Hajibabei, Reza | 2015

531 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47633 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Saghafi, Fariborz
Abstract:
The trailing edge brakes are the conventional controller mechanisms for autonomous precision delivery parafoil systems. Asymetric braking creates differential drag on the left and right sides of canopy leading to generation of turn rate, whereas symmetric deflection changes the aangle of attack which in turn affects airspeed and limit the glide slope. In the current work , in addition to the conventional controller , the canopy is considered to have the ability of changing its longitudinal and lateral incidence angles. This can be achieved by changing the length of sidelong suspension lines.Unlike brakes, the lateral incidence angle creates heavily coupling in lateral dynamics.The results show that modification of the guidance and control commands may cause some reduction in the effect of this coupling on the path following characteristic of the parafoil
Keywords:
Flight Dynamics ; Parafoil-Payload System ; Control Mechanism ; Lateral Incidence Angle ; Trailing Edge Brakes

No TOC