摘要
针对迫弹引信触发机构设计过程中,迫弹对水面射击时弹头引信环境参数的不足,利用有限元分析软件ANSYS/LS-DYNA对81mm迫击炮弹以不同着速、落角对水面射击情况进行动力学仿真,得到了迫击炮弹射击水面时引信正面水压和前冲过载规律。仿真结果表明：当着速为150-300m/s时,其受到的正面水压范围为：0.19-0.43GPa;随着落角不同,引信前冲过载数值不同,其变化范围为1830-14330 g;落角和着速不同时,弹丸达到最大前冲过载的时刻也不同,其范围为0.13-1.98ms。
In order to provide a reference parameter for design of trigger mechanism of mortar shell fuze , 81mm mortar shell shooting water at different impact angle and velocity were simulated by the nonlinear finite element analysis software ANSYS/LS-DYNA. The regularity of positive pressure and axial acceleration of mortar shell fuze were obtained. The result indicateed that when impact velocity was 150-300 m/s, the positive pressure of fuze is 0. 19-0. 43 GPa. The axial acceleration changed as the impact angle changing, and its peak value was 1830-14330 g. If the impact angle and velocity was different, the time reaching its peak value of 0. 13-1.98 ms.
出处
《探测与控制学报》
CSCD
北大核心
2015年第6期41-45,50,共6页
Journal of Detection & Control
基金
武器装备预先研究项目资助(51305040401)
关键词
迫击炮弹
引信
动力学仿真
射击水面
正面水压
前冲过载
mortar shell
fuze
dynamic simulation
shooting water
positive pressure
axial acceleration
