| 重力梯度力矩引起的自旋稳定卫星姿态摄动 |
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| 引用本文： | 隋起胜,袁建平,姜宇.重力梯度力矩引起的自旋稳定卫星姿态摄动[J].飞行器测控学报,2011(5):1-5. |
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| 作者姓名： | 隋起胜 袁建平 姜宇 |
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| 作者单位： | 西北工业大学;西安卫星测控中心宇航动力学国家重点实验室; |
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| 摘 要： | 建立了自旋稳定卫星姿态摄动的数值分析方法及模型,对重力梯度力矩作用下自旋卫星自旋轴相对于地心惯性系进动和章动以及赤经和赤纬的变化进行了仿真分析。对重力梯度力矩引起的自旋稳定卫星姿态摄动的演化规律进行了研究。指出在重力梯度力矩的作用下：自旋轴指向绕轨道面法线进动;章动角速度远小于进动角速度;轨道角速度越大,星体相对于地心惯性系的进动角速度和章动角速度越大,赤经和赤纬的变化率越大;自旋角速度越大,星体相对于地心惯性系的进动角速度和章动角速度越小,赤经和赤纬的变化率越小。
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| 关 键 词： | 自旋稳定卫星 重力梯度力矩 姿态摄动 |
Attitude Perturbation of Spin-Stabilized Satellites Caused by Gravity Gradient Moment |
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| SUI Qisheng,YUAN Jianping,JIANG Yu.Attitude Perturbation of Spin-Stabilized Satellites Caused by Gravity Gradient Moment[J].Journal of Spacecraft TT&C Technology,2011(5):1-5. |
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| Authors: | SUI Qisheng YUAN Jianping JIANG Yu |
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| Institution: | SUI Qisheng1,YUAN Jianping1,JIANG Yu2 (1.Northwestern Polytechnical University,Xi'an 710072,2.State Key Laboratory of Astronautic Dynamics,Xi'an Satellite Control Center,Xi'an 710043) |
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| Abstract: | A mathematical model and numerical method for attitude perturbation of spin-stabilized satellites are presented.With highlight on gravity gradient moment,the precession angle,nutation angle,longitude and latitude of the spin axis in the earth-centered inertial frame are computed and analyzed.The attitude perturbation of spin-stabilized satellites caused by gravity gradient moment is studied.The paper points out that with the attitude perturbation of the gravity gradient moment,precession of the spin axis fo... |
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| Keywords: | Spin-Stabilized Satellite Gravity Gradient Moment Attitude Perturbation |
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