球形爆炸容器内炸药爆炸形成的准静态气体压力

刘文祥 张德志 钟方平 程帅 张庆明

刘文祥, 张德志, 钟方平, 程帅, 张庆明. 球形爆炸容器内炸药爆炸形成的准静态气体压力[J]. 爆炸与冲击, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056
引用本文: 刘文祥, 张德志, 钟方平, 程帅, 张庆明. 球形爆炸容器内炸药爆炸形成的准静态气体压力[J]. 爆炸与冲击, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056
LIU Wenxiang, ZHANG Dezhi, ZHONG Fangping, CHENG Shuai, ZHANG Qingming. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel[J]. Explosion And Shock Waves, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056
Citation: LIU Wenxiang, ZHANG Dezhi, ZHONG Fangping, CHENG Shuai, ZHANG Qingming. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel[J]. Explosion And Shock Waves, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056

球形爆炸容器内炸药爆炸形成的准静态气体压力

doi: 10.11883/bzycj-2017-0056
基金项目: 

国家自然科学基金项目 11172245

详细信息
    作者简介:

    刘文祥(1982-), 男, 博士, 副研究员, wxliu@ustc.edu

  • 中图分类号: O381

Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel

  • 摘要: 准静态压力是爆炸容器设计的重要参考数据。在球形爆炸容器内开展了爆炸加载实验,压力传感器采用齐平和导孔两种安装方式,均获得了准静态压力数据,且两组数据一致。理论推导了准静态压力的表达式,并通过拟合实测数据得到经验公式。研究结果表明:(1)爆炸冲击波在容器内部往返3次后,容器内气体压力进入准静态;(2)准静态压力与当量容积比近似呈正比例关系,比例系数为1.10 MPa·m3/kg TNT。
  • 图  1  实验用球形爆炸容器

    Figure  1.  The spherical explosion containment vessel used in experiment

    图  2  实验装药

    Figure  2.  Explosive installation

    图  3  压力传感器安装结构示意图

    Figure  3.  Diagrams of pressure sensor installations

    图  4  齐平安装传感器获得典型压力波形(当量60 gTNT)

    Figure  4.  Pressure-time curve obtained by the pressure sensor of flush installation (when explosion equivalent is 60 gTNT)

    图  5  导孔安装传感器获得的典型波形(当量60 gTNT)

    Figure  5.  Pressure-time curve obtained by the pressure sensor of guide-hole installation (when explosion equivalent is 60 gTNT)

    图  6  准静态压力值的选取方法

    Figure  6.  The method for determining quasi-static pressure

    图  7  球形容器内准静态压力与当量容积比的关系

    Figure  7.  Relation between quasi-static pressure and explosion equivalent-to-vessel volume ratio in spherical vessel

    表  1  压力传感器参数

    Table  1.   Performance parameters of pressure sensors

    类型 量程/MPa 频响/kHz 上升时间/μs 非线性度 精度
    压电式传感器 34.48, 68.95 500 ≤1.0 ≤1.0%Fs 0.14, 0.28 kPa
    压阻式传感器 15, 40 600 ≤0.3 ≤1.0%Fs 0.5%Fs
    下载: 导出CSV

    表  2  压力传感器参数

    Table  2.   Quasi-static pressures obtained by pressure sensors

    当量/(gTNT) 准静态压力/MPa
    压电式传感器 压阻式传感器
    27 0.7, 0.7, 0.6
    60 1.4, 1.5 1.5, 1.2
    185 2.4 3.7
    370 5.5, 4.9, 5.3 5.4
    下载: 导出CSV
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出版历程
  • 收稿日期:  2017-02-22
  • 修回日期:  2017-06-30
  • 刊出日期:  2018-09-25

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