破片动态飞散速度的计算  

The calculation of Dynamic Dispersion Speed of Fragments

作　　者：鲁卫红[1] 张永顺[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《弹箭与制导学报》2009年第5期126-128,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：导弹攻击TBM等目标时,在中低空遭遇、大脱靶量、高相对速度情况下,战斗部爆炸后破片动态飞散弹道出现弯曲甚至存在多值问题,以往不考虑这一情况的有关破片动态飞散速度的计算模型已不适用。为此,建立了考虑破片弹道弯曲及多值问题,且适用于任意遭遇情况的导弹战斗部破片动态飞散速度计算模型。模型采用了计算机数值搜索求解方法,解决了复杂弹目交会情况下无法获得飞散速度的解析表达式的问题。利用两个算例,对建立的模型进行了验证,仿真计算结果与实际一致,表明模型是合理、正确的。When a missile attacks high speed targets such as TBM, when the encounter altitude is low, miss distance is large, the relative speed between missile and target is high, the dynamic dispersion trajectory of fragments after warhead explosion is.bent and sometimes the multi-value problem comes out. The old model which skips the dynamic dispersion speed of fragments is not useful anymore. So the calculating model of dynamic dispersion speed of fragments was built, which considers the problems of trajectory bend and multi-value, and fits for any encounter. The model solves the bend of ballistic trajectory of fragments and the multi-value problem and the problem that the analytic formula on calculating speed of fragments can not be obtained when encounter condition is very complex. The two simulation examples show that the model is reasonable and accurate.

关 键 词：动态飞散区 弹道 破片速度 

分 类 号：TJ760.31[兵器科学与技术—武器系统与运用工程]