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Integrated translational and rotational finite-time maneuver of a rigid spacecraft with actuator misalignment

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2 Author(s)
F. Zhang ; Center for Control Theory and Guidance Technology, Harbin Institute of Technology, PO Box 416, No. 92 West Da-Zhi Street, Harbin 150001, People's Republic of China ; G. R. Duan

This study deals with the problem of integrated translation and rotation finite-time maneuver of a rigid spacecraft with actuator misalignment. In view of the system natural couplings, the coupled translational and rotational dynamics of the spacecraft is derived, where a thruster configuration with installation misalignment is taken into account. An integrated finite-time control strategy is proposed by using terminal sliding mode technique to enable the spacecraft to track command position and attitude in a pre-determined time. Within the Lyapunov framework, the finite-time stability of the closed-loop system is guaranteed in the presence of the thruster misalignment and bounded disturbances. A scenario numerical simulation demonstrates the effect of the designed control strategy.0

Published in:

IET Control Theory & Applications  (Volume:6 ,  Issue: 9 )