一端开口圆筒形爆室线状装药爆炸冲击波峰值压力计算分析

Analysis and calculation for peak pressure of shock wave of linear charge explosive in a cylinder blasting chamber

建立了线状装药在一端开口爆室中心爆炸时,空气冲击波峰值压力的计算模型,该模型考虑了线状装药长度和爆轰波速度及圆筒内壁反射作用对爆炸流场基本参数的影响,并利用计算模型对爆室内线状装药爆炸压力进行了分析计算,计算结果与实测数据吻合较好。

The mechanical model of shock waves propagation was established when linear charge explosive was in a cylinder blasting chamber.There were many influence factors,such as,length of linear charge explosive,detonation wave velocity and air pressure affecting the flow field of blasting.The reflection of blast pressure on the inner face of the chamber was computed based on this mechanical model.The computation results agreed well with experimental value.