为了给弹药总体和引信传爆序列设计提供参考,以某中型盘状子弹为对象,通过破片初速理论计算和ANSYS/LS-DYNA仿真,并结合试验,得到了传爆管不同偏置距离下子弹战斗部预制破片初速各向分布。结果表明:与中心传爆系统相比,偏心传爆系统离传爆管远的破片初速较高。随传爆管偏置距离增加,同一周向破片间初速差异变大。传爆管偏置9mm时破片初速增益为-7.28%~8.28%,对子弹战斗部破片杀伤场轴对称性影响不大,因引信安全性设计所需的传爆管偏置结构可行。

In order to provide a reference for design of ammunition system and explosive train in fuze, based on a medium-sized bomblet, theoretical calculation of the initial velocity theory of fragment, simulation analysis by ANSYS/LS-DYNA and experiment were applied. Distribution of initial velocity of fragmentation warhead with different eccentric booster of bomblet was obtained. The results show that compared with center detonating propagation system, the fragment initial velocity of eccentric detonation propagation system increases as increase of the distance between fragment and booster. The initial velocity difference between fragment increases with increase of location of booster. While eccentric distance is 9 mm, the enhancement of initial velocity of fragment can reach 7.28%-8.28%, which has little effect on lethal symmetry of bomblet warhead fragments, therefore, the eccentric detonation structure required by fuze safety design is feasible.