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Concurrent Proximity Control of Servicing Spacecraft With an Uncontrolled Target
- Source :
- IEEE/ASME Transactions on Mechatronics. 24:2815-2826
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- This paper investigates the six-degrees-of-freedom (6-DOF) rendezvous and docking issue with an uncontrolled target for a servicing spacecraft under thruster misalignment and external disturbances. Initially, a 6-DOF relative motion dynamic model is established to depict the relative position–attitude between the servicing spacecraft and uncontrolled object (freely tumbling spacecraft). Then, an adaptive fixed-time control scheme with a novel sliding manifold is employed to accomplish the 6-DOF rendezvous (close-range) and docking mission for the servicing spacecraft. Unlike existing methods, the sliding-mode surface is designed by using the new sufficient condition to achieve the system's fixed-time convergence, and this condition reduces the conservativeness of the traditional ones with less dominated terms. Moreover, the settling time of relative translation-rotation tracking errors is guaranteed irrespective of initial motion conditions. Accordingly, the fixed-time stability of the closed-loop system is guaranteed by the rigorous Lyapunov theory analysis. Finally, numerical simulation results with various cases are implemented to verify the superiority of the presented sliding-mode control strategy.
- Subjects :
- Lyapunov function
0209 industrial biotechnology
Spacecraft
Computer simulation
Computer science
Settling time
business.industry
Rendezvous
02 engineering and technology
Mechatronics
Computer Science Applications
Theory analysis
Attitude control
symbols.namesake
020901 industrial engineering & automation
Control and Systems Engineering
Control theory
symbols
Electrical and Electronic Engineering
business
Subjects
Details
- ISSN :
- 1941014X and 10834435
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- IEEE/ASME Transactions on Mechatronics
- Accession number :
- edsair.doi...........ec9230210f968a332bb5b1b9b5aed6cf