弹目交会条件下爆炸驱动结构体的展开过程研究

宁建国 汪齐 栗建桥

宁建国, 汪齐, 栗建桥. 弹目交会条件下爆炸驱动结构体的展开过程研究[J]. 高压物理学报. doi: 10.11858/gywlxb.20240808
引用本文: 宁建国, 汪齐, 栗建桥. 弹目交会条件下爆炸驱动结构体的展开过程研究[J]. 高压物理学报. doi: 10.11858/gywlxb.20240808
NING Jianguo, WANG Qi, LI Jianqiao. Research on the Deployment Process of Explosive-Driven Structures under the Condition of Projectile-Target Rendezvous[J]. Chinese Journal of High Pressure Physics. doi: 10.11858/gywlxb.20240808
Citation: NING Jianguo, WANG Qi, LI Jianqiao. Research on the Deployment Process of Explosive-Driven Structures under the Condition of Projectile-Target Rendezvous[J]. Chinese Journal of High Pressure Physics. doi: 10.11858/gywlxb.20240808

弹目交会条件下爆炸驱动结构体的展开过程研究

doi: 10.11858/gywlxb.20240808
基金项目: 国家自然科学基金(12032006,12172054)
详细信息
    作者简介:

    宁建国(1963-),男,博士,教授,主要从事计算力学与爆炸力学研究. E-mail:jgning@bit.edu.cn

    通讯作者:

    栗建桥(1987-),男,博士,助理教授,主要从事爆炸与冲击动力学研究. E-mail:jqli@bit.edu.cn

  • 中图分类号: O313.3; TJ410.3

Research on the Deployment Process of Explosive-Driven Structures under the Condition of Projectile-Target Rendezvous

  • 摘要: 复杂结构在爆炸驱动作用下的展开是展开型定向战斗部定向过程中的关键问题,对展开过程进行有效控制,有利于战斗部的起爆延时控制和破片利用率提高。针对复杂结构体的展开问题,基于JWL状态方程和第二类拉格朗日方程,从能量守恒出发推导了考虑爆轰产物膨胀过程和对目标命中状态的爆炸驱动展开模型。将驱动展开模型计算结果与文献实验结果进行对比,验证了爆炸驱动展开模型计算结果的准确性。结果表明,基于该模型的理论计算结果与实验结果的一致性较好,能较为精确地预测不同装药量下结构的展开时间;将辅助装药1与辅助装药2的质量比控制在1.5~1.7,结构体展开可达最佳命中姿态,更有利于命中目标。研究成果可充实定向战斗部设计理论,为展开型定向战斗部的设计提供参考。

     

  • 图  复杂结构体的展开过程

    Figure  1.  Unfolding process of evolvable aimed warhead

    图  棱柱体径向截面结构

    Figure  2.  Radial section structure of fan

    图  辅助装药爆轰瞬间棱柱体的平面位置

    Figure  3.  Position of the fan at the moment of the detonation of the auxiliary charge

    图  复杂结构体展开过程中的空间一般位置

    Figure  4.  General position in unfolding process of complex structure

    图  命中目标过程的一般位置示意图

    Figure  5.  General position diagram during hitting the target

    图  数值模拟与实验[16]得到的展开过程对比

    Figure  6.  Comparison of the unfolding process in numerical simulation and experiment results[16]

    图  展开过程的数值模拟与理论计算结果对比

    Figure  7.  Comparison of numerical and theoretical results of the unfolding process

    图  展开角度的变化曲线

    Figure  8.  Variation curves of the warhead deployment angles

    图  计算值与实验值[16]的对比

    Figure  9.  Comparison of calculated and experimental[16] results

    图  10  理论计算得到的第2组实验工况的展开过程

    Figure  10.  Theoretical calculation results of the unfolding process for scenario No.2

    图  11  d的变化曲线

    Figure  11.  Curves of changes in the d-value

    图  12  展开时间随装药量变化曲线

    Figure  12.  Expansion time varies with the mass of the auxiliary charge

    表  1  计算模型参数

    Table  1.   Model parameters

    R/cmh1/cmh2/cmρ1/(g·cm−3)ρ2/(g·cm−3)ρ3/(g·cm−3)ρ4/(g·cm−3)
    81.232.711.727.87.8
    下载: 导出CSV

    表  2  壳体及破片材料参数

    Table  2.   Material parameters of shell and fragment

    Material ρ/(g·cm−3) E/GPa ν σs/GPa G/GPa
    45 steel 7.80 200 0.30 0.231 76.3
    LY-12 aluminum alloy 2.71 73 0.34 0.276 25.9
    下载: 导出CSV

    表  3  主装药材料参数

    Table  3.   Material parameters of main charge

    Material ρ/(g·cm−3) E/GPa σs/GPa ν
    Composition B 1.72 4.2 1.1 0.34
    下载: 导出CSV

    表  4  辅助装药的JWL状态方程参数

    Table  4.   JWL equation of state parameters of auxiliary charge

    ρ/(g·cm−3) pCJ/GPa A/GPa B/GPa R1 R2 ω
    1.85 28 520 7 4.6 1.3 0.38
    下载: 导出CSV

    表  5  不同药量下最佳命中姿态对应的参数

    Table  5.   Parameters corresponding to the optimal hit attitude of different mass of the auxiliary charge

    Total mass of the auxiliary charge/gme1/gme2/gd/cmα/(°)χ/(°)
    11.07.04.027.845.989.2
    16.010.06.06.245.489.1
    18.011.07.013.344.190.0
    20.012.57.50.244.889.4
    22.014.08.09.745.188.9
    26.016.59.52.444.689.5
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-05-07
  • 修回日期:  2024-06-01
  • 网络出版日期:  2024-09-19

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