摘要
针对端面起爆柱形装药水中爆炸近场冲击波阵面呈现非球形传播的特点,采用分幅相机记录了炸药起爆36μs内近场冲击波的传播情况,分析了冲击波在不同时间和不同位置的形状;采用两台高速扫描相机测量了侧边任意一点的冲击波速度,结合Rankine-Hugoniot关系,得到了冲击波阵面的压力;同时用LS-DYNA方法对侧边任意一点的压力进行了数值模拟,两者得到的结果基本一致。
According to the non-sphericity characteristic of shock wave surface at close-field after cylin- drical charge with end boost exploring under water,the propagation of shock near-field is recorded by frame camera within 36 μs after blasting, and the shape of shock on diverse time and situation is analyzed. The shock pressure of arbitrary point on the side of charge is measured through two streak cameras. Combined with the Rankine-Hugoniot relation, the pressure on shock front is gained,and the resolution is compared with LS-DYNA numerical value. It demonstrated that they are consistent relatively.
出处
《高压物理学报》
CAS
CSCD
北大核心
2008年第3期323-328,共6页
Chinese Journal of High Pressure Physics
基金
国家安全重大基础研究项目(51335010201)
关键词
爆炸力学
水中爆炸
柱形装药
高速相机
mechanics of explosion
underwater explosion
cylindrical charge
high-speed camera
