摘要
本文研究了太阳帆航天器在光压因子、锥角和钟角共同作用下的三维人工平动点的变化特性。在光压因子较小的时候,五个平动点会拓展成五个不相连的"人工"平动点面。随着光压因子增大,平动点面SL3,SL4和SL5将逐渐扩大并互相融合,最终延展至SL1与之融合。而平动点面SL2则始终保持独立的球面,只随着光压因子的增大而扩大但不与其它平动点面发生融合。平动点位置的改变,意味着对应的周期轨道也随之改变,这为平动点周期轨道的转移等任务提供了有效参考。
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,SL4and 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.
作者
段逊
岳晓奎
党朝辉
DUAN Xun;YUE Xiao-kui;DANG Zhao-hui(School of Astronautics,Northwestern Polytechnical University,Xi’an 710072,China;National Key Laboratory of Aerospace Flight Dynamics,Xi’an 710072,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2020年第1期118-124,共7页
Journal of Astronautics
关键词
人工平动点
太阳帆航天器
太阳光压
Artificial libration point
Solar sail spacecraft
Solar pressure
