| 考虑太阳引力摄动的Halo轨道保持控制 |
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| 引用本文： | 车征,李俊峰,宝音贺西.考虑太阳引力摄动的Halo轨道保持控制[J].清华大学学报(自然科学版),2009(2). |
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| 作者姓名： | 车征 李俊峰 宝音贺西 |
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| 作者单位： | 清华大学航天航空学院; |
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| 基金项目： | 国家自然科学基金资助项目(10672084);;博士点基金资助(20060003097) |
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| 摘 要： | 研究了考虑太阳引力影响的地-月系统中绕L2点轨道的保持问题。在地-月系统圆形限制性三体问题的基础上,考虑太阳的影响,先用微分修正法得到飞行器的初始状态,然后根据方程的对称性,分别沿时间的负向、正向积分,得到绕L2点的闭合轨道。以该闭合轨道为目标轨道,根据模型的动力学特点,设计变结构滑膜控制律。仿真结果表明,该控制律能很快消除飞行器入轨时位置、速度的偏差,使飞行器在目标轨道上稳定飞行。该文的结果可应用于对月球背面的定点观测或中继站。
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| 关 键 词： | Lagrange点 Halo轨道 第四体引力 轨道保持 滑模控制 |
Halo orbit station-keeping for in the presence of solar gravitational perturbations |
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| CHE Zheng,LI Junfeng,BAOYIN Hexi.Halo orbit station-keeping for in the presence of solar gravitational perturbations[J].Journal of Tsinghua University(Science and Technology),2009(2). |
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| Authors: | CHE Zheng LI Junfeng BAOYIN Hexi |
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| Institution: | School of Aerospace;Tsinghua University;Beijing 100084;China |
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| Abstract: | Station-keeping for orbits around the Lagrange point L2 in the Earth-Moon system need to allow for variation of the solar gravitation.The circular restricted three-body problem for the Earth-Moon system was showed to get the initial values for the differential corrections describe the solar gravitational perturbations.Then the symmetry of the dynamics equation was used to calculate a closed orbit around L2 by integrating along the negative and positive directions in time.A sliding mode controller was design... |
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| Keywords: | Lagrange point Halo orbit fourth body gravitation orbit keeping sliding mode control |
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