| 空间碎片在轨碰撞数值模拟 |
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| 引用本文： | 刘有英,王海福,贺金丽,张猛.空间碎片在轨碰撞数值模拟[J].战术导弹技术,2006(5):59-62. |
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| 作者姓名： | 刘有英 王海福 贺金丽 张猛 |
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| 作者单位： | [1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]中国兵器工业第208研究所,北京102202 [3]武汉军械士官学校地面火炮教研室,武汉430064 |
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| 摘 要： | 采用AUTODYN-2D无网格SPH数值技术，对碰撞速度10km／s下的球形及柱状空间碎片在轨碰撞超高速作用行为进行数值模拟，给出了不同节点处的速度变化规律．数值模拟结果表明。空间两物体碰撞后所形成碎片云主要分布在原碰撞物体运行轨道周围，运动方向与原来碰撞物体的速度方向相同；发生碰撞的空间物体形状强烈影响碰撞后碎片云的分布及速度；球形碎片碰撞柱状碎片形成的碎片云速度最大；柱状碎片相撞后碎片云呈椭球形分布．
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| 关 键 词： | 空间碎片 超高速碰撞 SPH数值技术 |
| 文章编号： | 1009-1300(2006)05-0059-04 |
| 修稿时间： | 2006年5月20日 |
Numerical Simulation of On-orbit Space Debris Impact |
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| Liu Youying,Wang Haifu,He Jinli,Zhang Meng.Numerical Simulation of On-orbit Space Debris Impact[J].Tactical Missile Technology,2006(5):59-62. |
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| Authors: | Liu Youying Wang Haifu He Jinli Zhang Meng |
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| Abstract: | Gridless smooth particle hydrodynamic(SPH) numerical technique of AUTODYN-2D hydrocode is used to simulate the impact behavior of spherical and cylindrical space debris on-orbit impacted at a velocity of 10km/s.The velocities of different particles influenced by time are presented.The debris clouds produced by two objects on-orbit impacted distribute around the original orbit and move in the same direction of the obvious object.The distribution and velocities of debris cloud are affected seriously by the shape of space objects impacted.The velocities of debris cloud are the fastest when cylindrical debris is impacted by spherical debris.The shape of distributed debris cloud is ellipsoid when the impact takes place between two cylindrical space objects. |
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| Keywords: | orbital debris hypervelocity impact SPH numerical technique |
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