Dynamics analysis of a convex spring for space debris capture mechanism

In order to mitigate the space debris problem, establishment of a system for capturing space debris is urgently required. However, the debris capture technology has not been established yet. This study investigates a novel gripper system for space debris capture. The system has a convex shaped spring that winds up applying contact force as a trigger. This system can hold and fix debris regardless of the opponent shape and maintain capturing force. In this paper, the dynamics of bending and propagation of the convex spring are clarified. Through the experiment, the validity of the derived equations for the spring motions are verified.