Research on Dynamic Modeling and Distributed Cooperative Control Method of Dumbbell-Shaped Spacecraft

Purpose: To suppress the vibration of dumbbell-shaped spacecraft by combining distributed cooperative control (DCC) and component synthesis vibration suppression (CSVS). Methods: The dumbbell-shaped spacecraft is divided into control sub-modules, and the dynamic model for distributed control is established according to Newton–Euler method and Lagrange’s equations of second kind; The distributed controller is designed by combining graph theory and consistency theory, and the stability of the closed-loop system is analyzed based on Lyapunov theory; CSVS + DCC method is proposed to suppress the vibration of dumbbell spacecraft. Finally, numerical simulation is used to verify the superiority and effectiveness. Results: The large angle attitude maneuver of dumbbell spacecraft can be completed by CSVS + DCC method. Compared with bang-bang control, the stabilization time is shortened by 25.76%, and the vibration amplitude at the center of mass of the system is reduced by 53.06%. Conclusion: The vibration of dumbbell spacecraft can be actively suppressed by CSVS + DCC active vibration suppression.