超高速撞击中影响碎片云形状因素分析

唐蜜; 柏劲松; 李平; 张展冀

doi:10.11858/gywlxb.2007.04.016

超高速撞击中影响碎片云形状因素分析

doi: 10.11858/gywlxb.2007.04.016

中国工程物理研究院流体物理研究所，四川绵阳 621900

详细信息

通讯作者:
唐蜜

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出版历程
- 收稿日期: 2006-11-21
- 修回日期: 2007-03-09
- 发布日期: 2007-12-05

Factors Analysis of Debris Cloud's Shape of Hypervelocity Impact

Institute of Fluid Physics, CAEP, Mianyang 621900, China

More Information

Corresponding author: TANG Mi

摘要

摘要: 应用光滑粒子流体动力学（SPH）方法对铝球弹丸正撞击防护屏进行了数值模拟研究，将计算结果同相应的实验结果进行了比较，二者符合得很好。在此基础上分析了撞击速度、防护屏厚度、铝球直径、材料、弹丸形状、间隙量等因素对碎片云的影响规律。并以碎片云的长度和径向尺寸为指标，应用正交设计方法对撞击速度、防护屏厚度、铝球直径三因素对指标的影响主次关系进行了分析研究，防护屏厚度是碎片云长度的主要影响因素，而弹丸直径是碎片云径向的主要影响因素。
- 超高速撞击 /
- 数值模拟 /
- 碎片云 /
- 正交设计
Abstract: The numerical simulations of hypervelocity impact of Al-spheres on bumper at normal are carried out using the smoothed particle hydrodynamics (SPH) technique. The simulation results are compared with experimental results, and the simulated hole diameters of bumper and debris cloud are well consistent with experimental results. The effect of impact velocity, bumper thickness, projectile diameter, materials, shape of projectile, interval on produced debris cloud are further analyzed. Regarding the length and diameter as index, orthogonal design method is applied to analyze the primary and secondary relations on the debris cloud's index of the three factors, that is impact velocity, bumper thickness and projectile diameter. The results indicate that bumper thickness is the main influence factor of debris cloud's length while projectile diameter is the main influence factor of debris cloud's diameter.
- hypervelocity impact /
- numerical simulation /
- debris clouds /
- orthogonal design

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参考文献(12)

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