Title :
Adaptive sliding mode attitude and vibration control of an elastic spacecraft
Author :
Kabganian, Mansour ; Shahravi, Morteza
Author_Institution :
Dept. of Mech. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
An adaptive sliding mode control is investigated for rotational maneuvers of a flexible spacecraft. The model of the spacecraft consists of a rigid central hub and two flexible appendages. Using the sliding mode scheme, asymptotical tracking control of the slew angle and vibration suppression of the system is accomplished. Stability proof of the overall closed-loop system is given via Lyapunov analysis. It is assumed that the parameters of the system are unknown. The upper bounds of the unknown parameters are estimated and have been used in the control law. The proposed control scheme could reduce the computational complexity and times. Numerical simulations show the effectiveness of the proposed controller.
Keywords :
Lyapunov methods; adaptive control; asymptotic stability; attitude control; closed loop systems; computational complexity; control system analysis; flexible structures; space vehicles; variable structure systems; vibration control; Lyapunov analysis; adaptive control; asymptotical tracking control; attitude control; closed-loop system; computational complexity; elastic spacecraft; flexible appendage; flexible spacecraft; rotational maneuver; sliding mode control; system vibration suppression; vibration control; Adaptive control; Attitude control; Control systems; Parameter estimation; Programmable control; Sliding mode control; Space vehicles; Stability analysis; Upper bound; Vibration control;
Conference_Titel :
Control and Automation, 2005. ICCA '05. International Conference on
Print_ISBN :
0-7803-9137-3
DOI :
10.1109/ICCA.2005.1528136
