太阳帆航天器三维人工平动点变化特性研究

The variation characteristics of three-dimensional artificial libration points of a solar sail spacecraft under the combined action of the light pressure factor, cone angle and bell angle are studied. When the light pressure factor is small, the five libration points will be expanded into five unrelated "artificial" libration points. With the increase of the light pressure factor, the libration point surfaces SL₃, SL₄ and SL₅ will gradually expand and mix with each other, and eventually extend to SL₁ and mix together. However, SL₂ always keeps its own ball sphere, which enlarges only with the increase of the light pressure factor, but does not merge with other libration points. The change of the position of the libration point means that the corresponding periodic orbits also change, which provides an effective reference for the tasks such as the transition of the periodic orbits of the libration point.