基于破片球形靶试验、破碎性试验等测试数据,利用破片初速经验公式、速度矢量合成公式,开展破片对地面作战人员杀伤概率计算,得到杀伤面积随落角、落速、爆高等因素的变化规律。落角较小时,破片杀伤概率地面等值面呈C形结构。随着落角增加,C形结构开口逐渐减小,并最终合拢成为环形。破片杀伤面积受落角变化影响较大,受落速、爆高因素影响相对较小。在爆高不变的情况下,杀伤面积随落速增加变化不大,但在落角为80°、落速为550 m/s时出现峰值;在落速不变的情况下,杀伤面积随爆高增加呈现先增加后减小的趋势。

Based on test data such as fragment spherical target tests and fragmentation tests, empirical formula of fragment initial velocity and formula of velocity synthesis are used to calculate the lethal probability, and to obtain the variation law of the lethal area with angle, velocity, and explosion height. When the angle of impact is small, the ground isosurface of mnbvcxzlethal probability presents a C-shaped structure. As the angle increases, the opening of the C-shaped structure gradually decreases and eventually closes into a circular shape. The lethal area of fragments is greatly affected by changes in the angle of impact, and is relatively less affected by factors such as falling speed and explosion height. Under the condition of constant explosion height, the lethal area does not change significantly with the increase of falling speed, but there is a peak at the angle of 80° and falling speed of 550 m/s. Under the condition of constant falling speed, the lethal area shows a trend of increasing firstly and then decreasing with the increase of explosion height.