起爆形式对线性成型装药射流形成的影响

以工程中常用的柔性切割器为研究对象,在不考虑端部效应的前提下对三种起爆方式下线性成型装药射流形成差异进行了理论和数值模拟分析,得出了不同起爆方式下射流头部速度的大小关系、射流内部速度的分布规律。在此基础上进一步提出了三种起爆方式下线性成型装药切割目标的恰当的数值模拟方法。

EFFECT OF DETONATION WAYS ON JET FORMATION OF LINEAR SHAPED CHARGE

The flexible blasting cutter applied widely in blasting engineering is chosen as the object of this research. No considering the effect of the free end of linear shaped charge, theoretic analysis and nunlerical simulation analysis on the difference of jet formation of linear shaped charge with three different ways of detonation have proceeded. The magnitude of velocity of jet head and the grads of velocity from jet head to jet rear of linear shaped charge with three ways of detonation are gained. On the base of above re,arch results,suitable numerical simulation methods for the cutting process of linear shaped charge with three different ways of detonation are brought forward.