基于局部相互作用理论的侵彻弹头部形状优化及仿真

邓佳杰 张先锋 葛贤坤 陈东东 郭磊

邓佳杰, 张先锋, 葛贤坤, 陈东东, 郭磊. 基于局部相互作用理论的侵彻弹头部形状优化及仿真[J]. 爆炸与冲击, 2017, 37(4): 611-620. doi: 10.11883/1001-1455(2017)04-0611-10
引用本文: 邓佳杰, 张先锋, 葛贤坤, 陈东东, 郭磊. 基于局部相互作用理论的侵彻弹头部形状优化及仿真[J]. 爆炸与冲击, 2017, 37(4): 611-620. doi: 10.11883/1001-1455(2017)04-0611-10
Deng Jiajie, Zhang Xianfeng, Ge Xiankun, Chen Dongdong, Guo Lei. Nose-shape optimization and simulation of projectiles penetrating into concrete target based on local interaction theory[J]. Explosion And Shock Waves, 2017, 37(4): 611-620. doi: 10.11883/1001-1455(2017)04-0611-10
Citation: Deng Jiajie, Zhang Xianfeng, Ge Xiankun, Chen Dongdong, Guo Lei. Nose-shape optimization and simulation of projectiles penetrating into concrete target based on local interaction theory[J]. Explosion And Shock Waves, 2017, 37(4): 611-620. doi: 10.11883/1001-1455(2017)04-0611-10

基于局部相互作用理论的侵彻弹头部形状优化及仿真

doi: 10.11883/1001-1455(2017)04-0611-10
基金项目: 

爆炸冲击防灾减灾国家重点实验室(解放军理工大学)开放基金项目 DPMEIKF201405

详细信息
    作者简介:

    邓佳杰(1990-),男,博士研究生

    通讯作者:

    张先锋,lynx@njust.edu.cn

  • 中图分类号: O385

Nose-shape optimization and simulation of projectiles penetrating into concrete target based on local interaction theory

  • 摘要: 以局部相互作用理论为基础,引入与弹体头部形状相关的开坑计算方法和归一化弹体头部形状方程,给出了任意头部形状弹体侵彻混凝土深度的计算模型。利用最大侵深法,得到了无量纲头部形状控制参数表达式及经典变分头部形状优化设计方法。理论计算及弹靶分离仿真模拟计算结果与实验结果吻合较好。研究结果表明:弹体头部相对半径较小时,球头锥形和球头卵形弹体优化后得到的头部形状分别为尖头锥形和尖头卵形;优化截头弹体的侵彻深度大于优化尖头弹体,而优化截锥形弹体的侵彻深度最大;弹体头部形状对弹体侵彻过载的影响显著,优化弹体头部形状可以有效地提高侵彻深度。
  • 图  1  任意头部形状弹体局部相互作用模型

    Figure  1.  Local interaction model of projectile with arbitrary nose-shape

    图  2  任意头部形状弹体结构示意

    Figure  2.  Structure diagram of projectile with arbitrary nose-shape

    图  3  弹靶相互作用区域示意

    Figure  3.  Interaction region between projectile and target

    图  4  不同头部形状弹体侵彻混凝土的局部相互作用模型计算结果与实验数据对比

    Figure  4.  Comparison of local interaction model calculation with experimental results for projectiles with different nose shapes penetrating into concrete

    图  5  典型回转形弹体头部形状控制参数最优值

    Figure  5.  Optimized control parameters of nose-shape for typical revolution projectiles

    图  6  相对球头半径与头部形状控制参数的变化关系

    Figure  6.  Control parameter of nose-shape vs. normalized spherical radius

    图  7  最优化弹体头部形状轮廓

    Figure  7.  Optimized nose-shape of projectile

    图  8  基于弹靶分离方法的弹体模型

    Figure  8.  Projectile model based on projectile-target separation method

    图  9  弹体侵彻混凝土的模拟结果与实验数据对比

    Figure  9.  Comparison of simulation with experiment for projectiles penetrating into concrete

    图  10  优化头部形状弹体模型

    Figure  10.  Numerical simulation model of optimal projectiles

    图  11  不同头部形状弹体速度与侵彻深度的关系

    Figure  11.  Penetration velocity vs. penetration depth for different optimal projectiles

    图  12  不同头部形状弹体以800 m/s的初速度侵彻混凝土时加速度和瞬时侵彻深度时程曲线

    Figure  12.  Curves of acceleration and instantaneous penetration depth for projectiles with different nose shapes penetrating into concrete at an initial velocity of 800 m/s

    表  1  弹体模型参数及混凝土材料参数

    Table  1.   Parameters for projectile geometry model and concrete material

    弹体头部形状 实验编号 弹体模型参数 混凝土材料参数
    m/kg dp/mm 弹体头形方程 σc/MPa ρt/(kg·m-3)
    尖卵形 1[24] 4.43 57.0 Φ=[228.02-(x-110.4)2]1/2-199.5 35 2 450
    2[25] 12.90 76.2 Φ=[228.62-(x-126.4)2]1/2-190.5 39 2 300
    截卵形 3[26] 0.28 25.3 Φ=[90.12-(x-33.2)2]1/2-83.8 40 2 300
    尖锥形 4[27] 0.08 10.0 Φ=x tan22.5° 44 2 200
    5[27] 0.08 10.0 Φ=x 44 2 200
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出版历程
  • 收稿日期:  2015-12-04
  • 修回日期:  2016-03-14
  • 刊出日期:  2017-07-25

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