Dynamic Analysis of Multi-body System Satellite Solar Sails Based on the Transfer Matrix Method

As the primary energy supply system of a spacecraft, the dynamics of a satellite solar sail panel significantly influence the orbital stability and reliability of the satellite. To investigate the complex dynamic behavior during the deployment and locking process of solar panels, this study first establishes a topological model of the solar panel system with a multi-stage deployment mechanism. The dynamic model is then formulated using the multi-body system transfer matrix method. Subsequently, the global dynamic equations of the system are recursively constructed through the transfer equations of individual elements. By solving the transfer equation of the system, the state vectors at each connection point are determined. Finally, experimental and dynamic simulation analyses are conducted to derive the system characteristics of the solar wing. The findings of this study provide theoretical and methodological support for the reliability design of solar sail deployment.