摘要
为解决基于经典外弹道理论的子弹药抛撒外弹道模型计算准确性较差的问题,针对带伞及带飘带无控子弹药,并考虑各种随机因素对其落点的影响,建立了随机外弹道模型.该模型中的随机微分方程组难以精确求解,采用蒙特卡洛方法进行近似求解.将该模型用于实际子母弹研制中,对子弹药落点进行预测,并与应用经典外弹道模型计算进行比较.结果表明,本模型的计算结果与实验结果吻合得更好.
A stochastic exterior ballistic model of parachute-stabilized and ribbon-stabilized submunutions is presented to overcome the disadvantage of low precision based on classical interior ballistics.Some random parameters were considered to improve calculation precision in the model.As it includes stochastic differential equations,the model becomes difficult to find out analytic answers.To overcome this,Monte Carlo method is made use of to seek its approximate key.In a submunitions dispersion test,this model and classical exterior ballistic model are used together to calculate submunitions＇ dispersed location.The results showed that this stochastic model has better precision than that of classical model.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2009年第10期850-853,共4页
Transactions of Beijing Institute of Technology
关键词
子弹药
抛撒
随机外弹道
蒙特卡洛解法
submunition
dispersion
stochastic exterior ballistic
Monte Carlo solution
