A shaped charge with ball-cone liner produced rod-like jet was studied by tracer-point processing techniques and LS-DYNA. Key parameters to evaluate the performance of jet, such as velocity distribution of material of liner, tip velocity of jet and penetration hole were obtained. The calculated result indicates that effective jet velocity of the general shaped charge with small degree liner is over 2000 m/s for steel target with general strength, while critical penetration velocity of rod-like jet is 1400m/s, based on above, the conversion rate of rod-like jet was 29. 65% for this shaped charge structure.%应用LS DYNA及示踪点处理技术,对某一球锥罩成型装药结构的射流形成过程及射流侵彻靶板过程进行了研究,获得了有效射流沿其运动方向的速度分布、头部速度、侵彻孔几何描述等多项评估射流微元性能的重要参数.计算结果表明,对于普通强度钢质目标靶,在射流侵彻靶板过程中,常规小锥角药型罩产生的有效射流为2000 m/s以上的射流段,杆式射流的临界侵彻速度值为1400 m/s,从而进一步得到其射流转化率为29.65％.
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