| 引用本文: | 黄海兵,李海阳,王华,等.对接组合体初始姿态影响的建模研究.[J].国防科技大学学报,2010,32(3):7-10,88.[点击复制] |
| HUANG Haibing,LI Haiyang,WANG Hua,et al.Modeling Research of Influence on Docking Combined Spacecraft's Initial Attitude[J].Journal of National University of Defense Technology,2010,32(3):7-10,88[点击复制] |
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| 对接组合体初始姿态影响的建模研究 |
| 黄海兵, 李海阳, 王华, 唐国金 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 建立了对接过程对组合体初始姿态影响的解析与数值模型。解析模型采用相对于整体质心的动量矩定理，给出了对接完成后组合体姿态角速度计算的解析表达式。结合追踪器的绝对运动方程和目标器的相对运动方程，建立了基于对接动力学的数值模型。通过单一偏差和组合偏差两种算例，对解析和数值模型得到的组合体初始姿态角速度进行了对比分析。计算结果表明，两种模型绝对偏差在0.07°/s以内，相对偏差在10%以内，另外给出了两种模型在工程任务中各自的适用阶段。 |
| 关键词: 对接组合体 姿态 动量矩定理 对接动力学 |
| DOI： |
| 投稿日期：2009-10-10 |
| 基金项目:国家自然科学基金资助项目(10902121) |
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| Modeling Research of Influence on Docking Combined Spacecraft's Initial Attitude |
| HUANG Haibing, LI Haiyang, WANG Hua, TANG Guojin |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology， Changsha 410073, China)
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| Abstract: |
| Analytical and numerical models of influence of docking process on combined spacecraft's initial attitude were developed. Based on the theorem of angular momentum with respect to total centroid, the general expression of numerical model for combined spacecraft's attitude angular velocity was obtained. By combining chase spacecraft's absolute motion with target spacecraft's relative motion equations, numerical model based on docking dynamics was developed. Finally, combined spacecraft's attitude angular velocity was contrasted with analytical and numerical models on different cases of single-error and multi-error. The results show that absolute error is within 0.07°/s and relative error is less than 10 percent between two models. Additionally, applicable phases of two models for engineering missions are presented. |
| Keywords: docking combined spacecraft attitude theorem of angular momentum docking dynamics |
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