一种破片侧向飞散参量的工程计算模型

An Engineering Calculation Model of the Lateral Dispersing Parameters of Fragment

为建立柱形战斗部破片飞散参量的计算模型,考虑长径比和破片类型的影响修正Gurney公式构建了战斗部破片初速的轴向分布模型,修正Shapiro公式构建了精度较高的破片偏转角模型,所建模型计算值与实验结果吻合较好,优于现有计算模型。

In order to build the computing model of cylindrical warhead fragment dispersing parameters, considering the influence of the ratio of length to diameter and the type of fragment, the revised Gurney equation was used to construct the axial distribution model of war- head fragment initial velocity. The fragment deflection model with high precision was modified by revised Shapiro formula. The calculated values of the model was identical with the experimental results and had better integrated performace than existing models.