To achieve the linear shaped charge jet with better characteristics, a truncated linear liner with rectangular auxiliary liner charge structure was designed.Six new charge structures and the traditional charge structure were simulated and calculated by the ANSYS/LS-DYNA 3D finite element program.The effect of rectangular auxiliary liner width and truncated gap length on the linear jet characteristics was analyzed.The results show that the maxium velocity of linear jet head formed by this new structure is overall higher than traditional linear shaped charge jet;and the linear jet shape is longer and thinner, the slug is relatively small, and the quality utilization rate of liner is higher.In the six sets of schemes, when the rectangular auxiliary liner width is 1.0cm and truncated gap is 0.4cm, the velocity of linear jet head formed by this structure is the maximum of 3.58km/s with better continuity,maximum effective width.%为了得到特性更好的线性聚能射流,设计了一种截顶线性药型罩加矩形辅助药型罩的新型装药结构,利用ANSYS/LS-DYNA3D有限元程序对6组新型装药结构及传统装药结构进行了模拟计算,分析了矩形辅助药型罩宽度和截顶间隙长度对线性射流特性的影响.结果表明,该新型结构形成的线性射流的头部最大速度总体较传统线性聚能射流高,形成的线性射流形态更细更长,并且杵体相对较少,药型罩质量利用率较高.在6组方案中,矩形辅助药型罩宽度为1.0cm、截顶间隙为0.4cm时,该结构形成的线性聚能射流头部速度最大,为3.58km/s,连续性较好,有效宽度最大.
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