相对速度对随进战斗部影响的仿真研究

Simulation research on front-rear distance influence of following warhead

为研究串联战斗部前级装药对随进战斗部的影响,验证在现有导弹战斗部前端加装环形聚能装药的可行性,利用ANSYS/LS-DYNA软件进行环形切割器对随进战斗部影响的数值仿真,在不同的前后级相对速度条件下,得到随进战斗部的加速度、速度和随进战斗部壳体和装药的最大应力值及其所在位置。仿真结果表明,在串联战斗部前后级相对速度增大的情况下,环形切割器爆炸后形成的冲击波对随进战斗部加速度、速度及壳体和装药的压力影响也逐渐增大,最终在600 m/s时,将引爆随进战斗部的装药,进而导致串联战斗部失去其价值。这为指导串联战斗部隔爆结构设计从而保证随进战斗部的安全可靠打下基础。

To research the effect of the tandem warhead＇s front charge to following warhead and verify the feasibility of installing annular shaped charge in the front of active missile＇ s warhead,the annular cutter＇ s influence to following warhead is simulated by using ANSYS / LS-DYNA software.The histories of acceleration,velocity and the max stress of following warhead＇s shell,charge and their place was obtained in different velocities between front charge and following warhead.Simulation results show the shock wave of annular cutter affect following warhead＇s acceleration,velocity and pressure of shell and charge increase with the velocity increasing.The charge of following warhead is blasted in 600 m / s leading to tandem warhead losing its value.It can support the base for desing of tandem warhead＇s blast-proof to guarantee following warhead safety and reliable.