国外日-地动平衡点卫星应用及转移轨道实现方式

圆形限制性三体问题中存在5个动平衡点.其中日-地系统中共线平衡点L1和L2是近十几年来国外研究热点.首先介绍了5个平衡点的位置关系及卫星应用,接着从理论上简单比较了Halo轨道和Lissajous轨道的区别,指出Halo轨道和Lissajous轨道是线性化偏差方程的特解.介绍国外日-地动平衡点卫星应用情况,分析了转移轨道的两种可行方式.

Application of Foreign Spacecrafts of Sun-Earth Libration Points and Manners of Transfer Trajectory

There are five libration points of circular-restricted three-b ody problem. The L 1 and L 2 libration points in sun-earth system hav e been the focus of recent space studies. Firstly, the papar introduces the posi tion relation of five libration points and the possible mission around them. Sec ondly, the difference of halo orbits and lissajous orbits, in theory, is compare d .It emphasizes that two orbits are the special solutions to the linearized bia s equations of motion. Thirdly, the application of foreign spacecrafts in orbits near the libration points in the sun-earth system is described. Two available manners of transfer trajectory are analyzed.