乳化炸药水下爆炸载荷输出特性实验研究

郑欣颖 李海涛 张弛 吕岩松

郑欣颖, 李海涛, 张弛, 吕岩松. 乳化炸药水下爆炸载荷输出特性实验研究[J]. 高压物理学报, 2022, 36(4): 045101. doi: 10.11858/gywlxb.20220502
引用本文: 郑欣颖, 李海涛, 张弛, 吕岩松. 乳化炸药水下爆炸载荷输出特性实验研究[J]. 高压物理学报, 2022, 36(4): 045101. doi: 10.11858/gywlxb.20220502
ZHENG Xinying, LI Haitao, ZHANG Chi, LYU Yansong. Experimental Study on Load Characteristics of Underwater Explosion for an Emulsion Explosive[J]. Chinese Journal of High Pressure Physics, 2022, 36(4): 045101. doi: 10.11858/gywlxb.20220502
Citation: ZHENG Xinying, LI Haitao, ZHANG Chi, LYU Yansong. Experimental Study on Load Characteristics of Underwater Explosion for an Emulsion Explosive[J]. Chinese Journal of High Pressure Physics, 2022, 36(4): 045101. doi: 10.11858/gywlxb.20220502

乳化炸药水下爆炸载荷输出特性实验研究

doi: 10.11858/gywlxb.20220502
基金项目: 国家自然科学基金(51679244)
详细信息
    作者简介:

    郑欣颖(1998-),男,硕士研究生,主要从事舰船抗爆抗冲击研究. E-mail:zxy_18271333753@163.com

    通讯作者:

    吕岩松(1976-),男,博士,副教授,主要从事舰船结构研究. E-mail:navylys@163.com

  • 中图分类号: O381

Experimental Study on Load Characteristics of Underwater Explosion for an Emulsion Explosive

  • 摘要: 为了研究乳化炸药水下爆炸载荷输出特性,开展了乳化炸药水下爆炸实验,通过改变药量、爆距、爆深等参数,得到了不同工况下乳化炸药水下爆炸冲击波和气泡载荷典型参数,分析了其能量输出结构,并将实验结果与TNT炸药水下爆炸载荷计算公式进行对比,获得了乳化炸药水下爆炸载荷的TNT当量。结果表明:Geers-Hunter载荷公式可以预测乳化炸药水下爆炸载荷输出的一般规律,特别是气泡脉动周期;气泡脉动压力峰值是初始冲击波压力峰值的10%~20%,气泡能是冲击波能的2倍左右;脉动压力变化呈现先缓慢上升达到峰值后急速下降趋于零并保持平稳的态势,波形上升沿耗时普遍比下降沿耗时长;乳化炸药水下爆炸在等冲击波超压和等气泡脉动周期下的TNT当量平均值分别约为0.595和0.646。研究结果可为乳化炸药的水下爆炸应用提供重要参考。

     

  • 图  实验布局

    Figure  1.  Experimental arrangement

    图  不同工况下乳化炸药水下爆炸压力时程曲线

    Figure  2.  Pressure histories of underwater explosion for the emulsion explosive under different cases

    图  压力的实验曲线与Geers-Hunter公式计算曲线的对比

    Figure  3.  Comparison of pressure histories between experiment and Geers-Hunter formula

    图  不同工况下乳化炸药水下爆炸气泡脉动压力随时间变化曲线

    Figure  4.  Histories of bubble oscillation pressure for different cases in underwater explosion of the emulsion explosive

    图  超压峰值与比例距离的拟合曲线

    Figure  5.  Fitting curve between peak overpressure and scaled distance

    图  气泡脉动周期与比例爆深的拟合曲线

    Figure  6.  Fitting curve between bubble pulsation period and scaled explosion depth

    表  1  实验工况

    Table  1.   Experimental cases

    Caseme/gh/mR/m$\bar{r}$/(m·kg−1/3) Caseme/gh/mR/m$\bar{r}$/(m·kg−1/3)
    1101.51.25.570 5801.01.22.785
    2101.51.56.9626801.01.53.481
    3801.51.22.78571601.51.22.210
    4801.51.53.48181601.51.52.763
    下载: 导出CSV

    表  2  实验结果与经验公式计算结果对比

    Table  2.   Comparison between experimental results and empirical formula

    Case No.pm T I
    Exp./
    MPa
    Theor./
    MPa
    Error/
    %
    Exp./
    ms
    Theor./
    ms
    Error/
    %
    Exp./
    (kN·s·m−2)
    Theor./
    (kN·s·m−2)
    Error/
    %
    14.76.224.1 564621.7 0.1800.20411.8
    23.94.818.8564621.70.1290.16421.3
    311.813.814.51079512.60.6010.74219.0
    48.510.720.699954.20.3430.60943.7
    512.013.813.0105987.10.5320.74228.3
    69.010.715.9107989.20.4030.60933.8
    717.017.95.013312010.80.9161.15020.3
    814.113.91.413412011.70.8110.94314.0
    下载: 导出CSV

    表  3  乳化炸药的能量输出结构

    Table  3.   Energy structure of emulsion explosive

    Case No.me/gh/mR/mEs/(kJ·g−1)Eb/(kJ·g−1)μEs/EbEt/(kJ·g−1)
    1101.51.20.8412.4160.4733.560
    2101.51.50.8242.4160.4643.537
    3801.51.20.9082.4160.5113.651
    4801.51.50.8802.4160.4953.613
    5801.01.20.9042.4190.5083.648
    6801.01.50.8842.4190.4973.621
    71601.51.20.9212.4160.5183.669
    81601.51.50.9012.4160.5073.641
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-01-10
  • 修回日期:  2022-03-07
  • 网络出版日期:  2022-07-27
  • 刊出日期:  2022-07-28

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