嫦娥二号平动点间转移轨道方案研究

系统工程与电子技术

嫦娥二号平动点间转移轨道方案研究

刘磊1，2，李勰1，2，曹建峰1，2，唐歌实1，2，胡松

（1. 航天飞行动力学技术重点实验室，北京 100094；
2. 北京航天飞行控制中心，北京 100094）

出版日期:2014-07-22 发布日期:2010-01-03

Transfer scheme of CHANG’E2 from the SunEarth #br# L2 point to the L1 point

LIU Lei1,2， LI Xie1,2， CAO Jianfeng1,2， TANG Geshi1,2， HU Songjie1,2

(1. Science and Technology on Aerospace Flight Dynamics Laboratory, Beijing 100094, China;
2. Beijing Aerospace Control Center, Beijing 100094, China)

Online:2014-07-22 Published:2010-01-03

摘要/Abstract

摘要：

针对我国嫦娥二号卫星拓展任务需求，研究了卫星由日地L2点向L1点的转移轨道方案。基于卫星真实星历，考虑各种摄动因素，借助不变流形理论和微分修正方法，设计了嫦娥二号在日地平动点L1和L2之间的转移轨道，提出了便于理解和工程应用的平动点间直接转移方式，研究了真实力模型下平动点Lissajous轨道的不变流形转移方式，对比了两种转移方式的出发速度增量、转移时间与出发时刻的关系。研究表明，嫦娥二号可以通过直接转移方式或者借助不变流形进入日地L1点Lissajous轨道，直接转移方式下有42天出发机会，基于不变流形方式下最短转移时间为210天，对应速度增量5.776 m/s，最小速度增量可达0.024 m/s。研究结果可直接应用于我国嫦娥二号拓展任务的轨道设计与控制，并为我国后续平动点等深空探测任务提供有益借鉴.

Abstract:

The CHANG’E2 transfer trajectory scheme from the SunEarth L2 point to the L1 point is studied to meet the needs of CHANG’E2 extended missions. Based on the current CHANG’ELissajous trajectory and considering real perturbation, the CHANG’E2 transfer trajectory from L2 to L1 is designed by using invariant manifold and differential correction. The transfer trajectory has two ways including the simple direct deltav transfer and the one based on invariant manifold. The first way is simple and easy for engineering application. The second way focuses on the invariant manifold of Lissajous orbit under real perturbation. For these two ways, the relation of deltav and transfer time with departing time is specially investigated. The results show that CHANG’E2 can enter the L1 Lissajous trajectory by the two ways and the direct way has a departing chance of 42 days. Additionally, the manifold way has the shortest transfer time of 210 days with a deltav of 5.776 m/s and the least deltav of 0.024 m/s. The research can be applied directly to the trajectory design and control of CHANG’E2 extended missions and to our future libration point mission and deep space exploration.

刘磊1，2，李勰1，2，曹建峰1，2，唐歌实1，2，胡松. 嫦娥二号平动点间转移轨道方案研究[J]. 系统工程与电子技术.

LIU Lei1,2， LI Xie1,2， CAO Jianfeng1,2， TANG Geshi1,2， HU Songjie1,2. Transfer scheme of CHANG’E2 from the SunEarth #br# L2 point to the L1 point[J]. Systems Engineering and Electronics.