壳体对爆炸空气冲击波强度的影响

The Influence of Shell on Blast Shock Wave Intensity

壳体对爆炸空气冲击波强度有重要影响 ,本文提出一种计算壳体破片速度的新方法 ,分析了壳体对爆炸空气冲击波强度的影响。本文指出 ,壳体对爆炸空气冲击波强度的影响取决于产生壳体破片部位的壁厚 (质量 ) ,而不是壳体的全部质量。这反映了实际情况 ,也是本文的特点所在。通过重量和形状相同的两种装药爆炸空气冲击波对模拟目标的毁伤实验 ,考查了本文理论分析结果的可靠性。理论分析与实验结果相吻合。本文得到弹体破片最大速度的上限和下限。破片速度与壳体厚度有关 ,壳体越厚或质量越大 ,对空气冲击波强度的影响越显著。

The shell affects the intensity of blasting shock wave greatly. A new quantitative analysis method for the shell affecting the intensity of blasting shock wave has been put forward in the paper. The method can be used to compute the fragment velocity of shell and to analyze the influence of blast shock wave intension of shell. That the influence of shell on blast shock wave intensity lies on the local shell mass or local shell thickness at which the fragments will be produced, not the full mass of shell has been pointed out in the paper. This point reflects the fact, and it is also the characteristic of the paper. The damage experiments of simulation objects for blast shock wave in two cases of explosive charges, which have the same mass and shape, are done to examine the reliability of analysis in this paper. The analysis and the experiment results are identical. The upper limit and lower limit of the max velocity for the fragment of bomb have given out in the paper. The fragment velocity depends on local thickness of shell, the thicker or the heavier is the local shell, and the bigger the influence of shell on shock wave intensity is.