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轴向增强战斗部端部惰性填充物对端部破片飞散特性的影响

李国杰 王成龙 郭志威 李响 黄广炎

李国杰, 王成龙, 郭志威, 李响, 黄广炎. 轴向增强战斗部端部惰性填充物对端部破片飞散特性的影响[J]. 爆炸与冲击, 2022, 42(8): 082202. doi: 10.11883/bzycj-2021-0281
引用本文: 李国杰, 王成龙, 郭志威, 李响, 黄广炎. 轴向增强战斗部端部惰性填充物对端部破片飞散特性的影响[J]. 爆炸与冲击, 2022, 42(8): 082202. doi: 10.11883/bzycj-2021-0281
LI Guojie, WANG Chenglong, GUO Zhiwei, LI Xiang, HUANG Guangyan. Influence of end non-reactive fillers on the dispersion of the fragments in an axially-enhanced warhead[J]. Explosion And Shock Waves, 2022, 42(8): 082202. doi: 10.11883/bzycj-2021-0281
Citation: LI Guojie, WANG Chenglong, GUO Zhiwei, LI Xiang, HUANG Guangyan. Influence of end non-reactive fillers on the dispersion of the fragments in an axially-enhanced warhead[J]. Explosion And Shock Waves, 2022, 42(8): 082202. doi: 10.11883/bzycj-2021-0281

轴向增强战斗部端部惰性填充物对端部破片飞散特性的影响

doi: 10.11883/bzycj-2021-0281
基金项目: 航天科技创新基金;航天科技钱学森青年创新基金
详细信息
    作者简介:

    李国杰(1979- ),男,博士研究生,高级工程师,liguojie7788@126.com

    通讯作者:

    王成龙(1989- ),男,博士,工程师,350229858@qq.com

  • 中图分类号: O389

Influence of end non-reactive fillers on the dispersion of the fragments in an axially-enhanced warhead

  • 摘要: 在当前破片战斗部动态毁伤场设计中,中心盲区效应被视为影响战斗部毁伤效率提高的关键因素。轴向增强战斗部作为消除战斗部动态中心盲区的重要手段,越来越受到相关研究人员的重视。本文中基于光滑粒子流体力学计算方法,建立了一系列轴向增强战斗部(端部分别含有惰性聚氨酯填充物、尼龙填充物和爆炸填充物)在爆炸载荷作用下的破碎和碎片散布过程的数值模型,并用于研究战斗部前端填充物特性对壳体动态响应的影响。数值模拟结果表明,填充物对战斗部前部破片的速度影响显著,但对破片飞散角度影响较弱。通过比较特定碎片的速度历史曲线,分析了惰性填料对碎片速度的影响机理。研究结果表明,聚氨酯泡沫填充物可以显著延缓爆炸冲击波对前破片的加速过程,并在一定程度上降低爆炸载荷,尼龙填充物可以在一定程度上降低前向破片和侧向破片的加速度,从而表明爆炸载荷被引导均匀分布在末端位置周围。结合战斗部自身的牵连速度,使用低密度和低质量填料代替头部装药具有相同的动态毁伤效果,可以提高轴向增强战斗部的能量利用效率。
  • 图  1  不同战斗部的毁伤区域

    Figure  1.  Damage regions by different warheads

    图  2  轴向增强战斗部

    Figure  2.  An axially-enhanced warhead

    图  3  轴向增强战斗部数值计算模型

    Figure  3.  The numerical model of an axially-enhanced warhead

    图  4  端部无填充战斗部壳体的破碎过程

    Figure  4.  Fragmentation process of the shell of the warhead with a non-filled end

    图  5  端部填充聚氨酯战斗部壳体破碎过程

    Figure  5.  Fragmentation process of the warhead with an end filled with polyurethane

    图  6  端部填充尼龙战斗部壳体破碎过程

    Figure  6.  Fragmentation process of the warhead with an end filled with nylon

    图  7  端部填充炸药战斗部壳体破碎过程

    Figure  7.  Fragmentation process of the warhead with an end filled with explosive

    图  8  轴向增强战斗部在不同轴向填充材料下的端部破片速度分布

    Figure  8.  The fragment velocity distributions of the axially-enhanced warheads filled with different materials

    图  9  不同轴向填充物下战斗部轴向增强部分破片的飞散角度

    Figure  9.  Projection angles of fragments from the axially-enhanced part of the warhead axially filled with different materials

    图  10  战斗部典型破片位置示意图

    Figure  10.  The typical positions of the fragments from the warhead

    图  11  典型位置破片速度时间曲线

    Figure  11.  Velocity-time curves of the fragments at typical positions

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出版历程
  • 收稿日期:  2021-07-05
  • 修回日期:  2022-02-22
  • 网络出版日期:  2022-04-06
  • 刊出日期:  2022-09-09

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