战斗部破片动态飞散区的多值求解方法

A Method of Multi-Value Solution of Dynamic Scattering Section of Warhead Fragments

根据导弹破片动态飞散区与静态飞散区间存在的对应关系"静态→动态1→动态2",结合弹目交会参数,分析了按照线路"动态2→动态1→静态"逆向搜索获得动态飞散区破片飞散速度、密度解值的计算方法;对导弹破片动态飞散区多值问题进行了分析,研究发现:战斗部破片大静态飞散范围角和中心破片静态飞散方向角前倾或后仰复杂情况下的动态飞散区可多达4个解。算例结果验证了求解方法的正确性。

It is necessary to build a mathematical model about dynamic scattering section of warhead fragments which fits in with complex encounter condition between missile and airplane,in the designing phase of missiles.According to the corresponding relation ＂Static state→Dynamic state 1→Dynamic state 2＂ between the dynamic scattering section and static scattering section of warhead fragments,and the encounter parameter between missile and airplane target,a method for calculating the dynamic scattering speed and density of the warhead fragments is studied by searching the keys according to the way of ＂Dynamic state2→Dynamic state 1→Static state＂ with computer.The multi-value problem of warhead fragments dynamic scattering section is lucubrated,and a new method of multi-value solution of dynamic scattering section of warhead fragments is advanced,which fits in with complex conditions such as big static state scattering angle range of fragments,the fragments static state scattering direction slope forward or back.A new opinion about multi-value problem that the maximum amount of keys is four is educed.The correctness of the new opinion is verified through simulation examples.