| 空间碎片超高速碰撞数值分析 |
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| 引用本文： | 徐金中,汤文辉,徐志宏,龚自正.空间碎片超高速碰撞数值分析[J].航天器环境工程,2008,25(1):1-5. |
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| 作者姓名： | 徐金中 汤文辉 徐志宏 龚自正 |
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| 作者单位： | 1. 国防科学技术大学,理学院,技术物理研究所,长沙,410073
2. 北京卫星环境工程研究所,北京,100094 |
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| 摘 要： | 采用光滑粒子流体动力学(SPH)方法对空间碎片超高速碰撞问题作了模拟分析,给出了靶孔直径和碎片云宽度随碰撞速度的变化、累积碎片分布、碎片云无量纲向前总动量随膨胀距离的变化、碎片云前端速度的变化规律以及碎片云速度矢量等。
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| 关 键 词： | 超高速碰撞 碎片云 光滑粒子流体动力学 |
| 文章编号： | 1673-1379(2008)01-0001-05 |
| 收稿时间： | 1/7/2008 12:00:00 AM |
| 修稿时间： | 2008年1月7日 |
Numerical analysis of space debris hypervelocity impacts |
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| Xu Jinzhong,Tang Wenhui,Xu Zhihong and Gong Zizheng.Numerical analysis of space debris hypervelocity impacts[J].Spacecraft Environment Engineering,2008,25(1):1-5. |
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| Authors: | Xu Jinzhong Tang Wenhui Xu Zhihong and Gong Zizheng |
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| Institution: | Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha 410073, China;;Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha 410073, China;;Institute of Technical Physics, College of Science, National University of Defense Technology, Changsha 410073, China;;Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | In this paper,space debris hypervelocity impacts are simulated by the smoothed particle hydrodynamics(SPH) method. The variations of the diameter of holes,the debris clouds width,the cumulative percentage of fragments,the dimensionlcss momentum,the residual velocity and the velocity vectors of debris clouds are discussed. |
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| Keywords: | hypervelocity impacts debris clouds smoothed particle hydrodynamics |
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