Reduced Model for Flexible Solar Sail Dynamics

摘要

In this paper, a reduced model for flexible solar sail dynamics was formulated in mixed coordinates. Foreshortening effects due to the foreshortening deformation of sails and booms were considered. For instance, the dynamic responses of a five-point connected square solar sail during maneuvers were investigated using this reduced model. A time-varying modal stiffness matrix was used to simulate time-varying properties of modal frequencies, due to the change of the solar pressure load. The reduced model was highly efficient using the modal reduction techniques. Its accuracy was verified using a high-fidelity finite element model in ABAQUS/Explicit It was illustrated that the reduced model can be both efficient and accurate for engineering applications.