失效航天器等离子羽流柔顺消旋动力学与控制

Orbital resources are gradually depleting, with the increasing number of satellite launches each year. Consequently, it is imperative to implement on-orbit maintenance for failed satellites with detumbling as a critical foundational stage. Traditional contact-based manipulation methods pose safety risks of collision, while existing contactless methods have drawbacks such as high energy consumption and limited effective distance. Therefore, this study proposes a novel contactless compliant detumbling approach utilizing high-speed plasma plumes generated by Hall thrusters to mitigate the rotational dynamics of tumbling targets. Firstly, an analytical model of the plume impact force on the target solar panel is established to achieve rapid calculation of the manipulation force. Subsequently, an optimal plume aiming guidance law based on the suppression of nutation kinetic energy is proposed to detumble the nutation and spin simultaneously. Building upon this, a non-singular fast terminal sliding mode control is designed to track the desired servicing spacecraft trajectory, ensuring the accuracy of detumbling manipulation. Numerical simulation results validate the feasibility of plasma plume detumbling, and the effectiveness of the controller is verified in the air-bearing spacecraft experiment.