炮射子母弹对均匀分布集群目标射击效率计算

Calculation of Firing Efficiency for Cargo Projectile to Cluster Target Evenly Distributed

将子弹均匀散布椭圆区域等效转换为均匀散布矩形区域,在适宽射向射击条件下,通过对单个目标条件毁伤概率的分析,导出了子母弹对矩形地段上均匀分布的集群目标射击效率计算数学模型。为提高计算效率,采用积分变量代换方法,将子母弹对集群目标射击效率计算由四重积分转化为二重积分。在将母弹散布近似看成正态散布和均匀散布下,给出了射击效率计算的两种对应的近似计算方法。算例表明,模型与方法计算精度较高。

The ellipse area with even distribution of bomblet is converted into the rectangular region equivalently,under condition of regular sheaf fire,the mathematical calculation model of firing efficiency for cargo projectile to concentrated targets evenly distributed on a rectangular section is derived by analyzing the conditional damage probability for a single target. In order to improve the efficiency of calculation,four integration is converted into double integration by method of integration variable substitution. Approximate computing technique that the centre of bomblet is on both normal diffusion and even diffusion is given. Examples show the caculation accuracy of the model and the method is higher.