Differential drag spacecraft rendezvous using an adaptive Lyapunov control strategy |
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| Institution: | 1. Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, JEC 1034 110 8th Street Troy, NY 12180, USA;2. Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, JEC 5048 110 8th Street Troy, NY 12180, USA;1. Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Torino, Italy;2. Mechanical and Aerospace Engineering Department, University of Florida, MAE-A Building, PO Box 116250, Gainesville, FL 32611-6250, USA;3. Department of Mechanical and Aerospace Engineering, Room 6939 Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino 10129, Italy;1. Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, JEC 1034 110 8th Street, Troy, NY 12180, USA;2. T-5, Los Alamos National Laboratory, MS-B284, Los Alamos, NM 87545, USA;3. Air Force Research Laboratory, Space Vehicles Directorate, Kirtland AFB, NM, USA;4. ISR-1, Los Alamos National Laboratory, P.O. Box 1663, Mail Stop D466, Los Alamos, NM 87545, USA;5. Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, JEC 5048 110 8th Street, Troy, NY 12180, USA;1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China;2. National Innovation Institute of Defense Technology, Beijing, China |
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| Abstract: | This paper introduces a novel Lyapunov-based adaptive control strategy for spacecraft maneuvers using atmospheric differential drag. The control forces required for rendezvous maneuvers at low Earth orbits can be generated by varying the aerodynamic drag affecting each spacecraft. This can be accomplished, for example, by rotating dedicated sets of drag panels. Thus, the relative spacecraft motion can be controlled without using any propellant since the motion of the panels can be powered by solar energy. A novel adaptive Lyapunov controller is designed, and a critical value for the relative drag acceleration that ensures Lyapunov stability is found. The critical value is used to adapt the Lyapunov controller, enhancing its performance. The method is validated using simulations. The results show that the Adaptive Lyapunov technique outperforms previous control strategies for differential drag based spacecraft maneuvering. |
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