Determination Method of Capture for an Orthogonal Distributed Satellite Capture Device

Abstract

An analytical method is proposed to determine the success or failure of capture for an orthogonal distributed satellite capture device with the characteristics of modularization, miniaturization, extensibility, and peripheral layout. A dynamic model of a body combined with an spacecraft, a robotic arm, and a satellite is established, and the time-varying position and position of the satellite are obtained. An impact dynamic model of the capture device and the satellite in the combined body is built. A kinematic model of the impact surfaces of the capture frame and the capture hook is established, and the position and time of the impact point are obtained by solving the common intersection point. In order to simplify the analysis process, the shortest time to capture the satellite and the corresponding position of capture hook are determined when the velocity of capture hook is fixed. After several impacts and follow-up process analysis, it is determined whether the capture task is successful by judging whether the capture frame is always within the capture area during the shortest capture time. Finally, an example is used to verify the proposed method. Compared with the simulation analysis, the same capture results and similar position and attitude curves of satellite are obtained, which proves the effectiveness of this method.

Keywords

• Determination method
• orthogonal distributed
• impact dynamics
• capture device