嫦娥四号中继星角动量管理策略设计及应用  

DESIGN AND APPLICATION OF ANGULAR MOMENTUM MANAGEMENT STRATEGY FOR CHANG’E-4 RELAY SATELLITE

作　　者：李皓皓 马传令[1,2] 张尧 梁伟光 刘勇[1,2] LI Haohao;MA Chuanling;ZHANG Yao;LIANG Weiguang;LIU Yong(Beijing Aerospace Control Center,Beijing 100094,China;Key Laboratory of Aerospace Flight Dynamics,Beijing 100094,China)

机构地区：[1]北京航天飞行控制中心,北京100094 [2]航天飞行动力学重点实验室,北京100094

出　　处：《力学与实践》2022年第6期1243-1251,共9页Mechanics in Engineering

摘　　要：嫦娥四号中继星在Halo轨道运行期间角动量卸载会对轨道构型产生扰动。本文研究了嫦娥四号中继星动量轮主动调姿卸载对使命轨道构型保持的作用,设计了中继星角动量管理策略。通过对角动量变化率建模,结合短期遥测数据,提出了一种基于微分修正的角动量变化预估方法。给出了中继星调姿卸载计算方法以及姿态机动过程中是否发生卸载的验证方法。针对嫦娥四号着陆器、巡视器处于月球日不同情况,给出了中继星姿态调整和调姿卸载策略。工程应用表明中继星角动量变化预估方法误差较小,根据角动量管理策略调姿卸载可以降低轨道维持频率,策略有效,具有工程可行性。The angular momentum unloading of the Chang'e-4 relay satellite during the halo orbit will perturb the orbital configuration.The effect of active attitude adjustment and unloading of the momentum wheel of the Chang'e-4 relay satellite on the maintenance of the mission's orbital configuration is studied,and a management strategy for the angular momentum of the relay satellite is designed.Based on the modeling of angular momentum change rate and the short-term telemetry data,a method of angular momentum change prediction based on differential correction is proposed.The calculation method of attitude adjustment unloading of relay satellite and the verification method of whether unloading occurs during attitude rotation are given.According to the different conditions of Chang'e-4 lander and rover in the lunar day,the attitude adjustment and attitude adjustment unloading strategies of the relay satellite are given.The engineering application shows that the error of the prediction method of relay satellite angular momentum change is small.The attitude adjustment and unloading according to the angular momentum management strategy can reduce the orbit maintenance frequency.The strategy is effective and feasible.

关 键 词：嫦娥四号中继星 HALO 轨道 角动量预估 角动量管理 动量轮调姿卸载 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]