| 单层及双层板的超高速碰撞试验(速度超过10km/s)的数值模拟 |
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| 引用本文： | 龚祖荣,徐兰菊. 单层及双层板的超高速碰撞试验(速度超过10km/s)的数值模拟[J]. 航天器环境工程, 2000, 0(4) |
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| 作者姓名： | 龚祖荣 徐兰菊 |
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| 作者单位： | 北京卫星环境工程研究所 北京100029 |
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| 摘 要： | 文章介绍了在Sandia国家实验室所进行的3个精确控制的超高速碰撞试验,使用两种复杂的流体码即多维流体动力学代码CTH和平滑粒子流体动力学代码SPH,对该试验进行数值模拟。该试验用质量为克大小的飞片及球形射弹以大约10km/s的速度撞击薄铝板及钢板(厚度小于1cm)。并分析了碎片云动力学计算预示结果及这些试验中金属板的损坏。
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| 关 键 词： | 空间碎片 超高速碰撞 数值模拟 |
NUMERICAL SIMULATIONS OF HYPERVELOCITY IMPACT EXPERIMENTS AT VELOCITIES IN EXCESS OF 10 km/s INVOLVING SINGLE AND DOUBLE PLATES |
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| Gong Zurong Xu Lanju. NUMERICAL SIMULATIONS OF HYPERVELOCITY IMPACT EXPERIMENTS AT VELOCITIES IN EXCESS OF 10 km/s INVOLVING SINGLE AND DOUBLE PLATES[J]. Spacecraft Environment Engineering, 2000, 0(4) |
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| Authors: | Gong Zurong Xu Lanju |
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| Abstract: | Well-controlled hypervelocity impact experiments were numerically modeled using two sophisticated hydrocodes,the multi-dimensional hydrodynamics code CTH and the Smoothed Particle Hydrodynamics code(SPH)in Sandia National Laboratory(SNL).Impact velocities on the order of 10 km/s were applied to gram sized flier plates and spherical projectiles that struck thin(less than 1 cm)aluminum and steel plates.Computational predictions of the debris cloud dynamics and plate damage for these experiments were analyzed. |
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| Keywords: | Space debris Hypervelocity impact Numerical simulations |
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