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.nForeshortening effects due to the foreshortening deformation of sails and booms were considered. For instance, thendynamic responses of a five-point connected square solar sail duringmaneuverswere investigated using this reducednmodel.Atime-varyingmodal stiffnessmatrixwas used to simulate time-varying properties ofmodal frequencies, duento the change of the solar pressure load. The reduced model was highly efficient using the modal reductionntechniques. Its accuracywas verified using a high-fidelity finite elementmodel inABAQUS/Explicit. Itwas illustratednthat the reduced model can be both efficient and accurate for engineering applications.