偏心式定向战斗部的破片速度及数目分布  

The Fragments Velocity and Destiny Distribution of the Eccentric Detonation Aimed Warhead

作　　者：吕胜涛[1] 李向东[1] 杨亚东[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《火炸药学报》2010年第5期79-82,90,共5页Chinese Journal of Explosives & Propellants

摘　　要：为了研究偏心式定向战斗部爆炸后的破片速度及数目分布,对此类战斗部爆炸后所形成的破片场进行了分析,建立了偏心起爆式定向战斗部的破片速度及数目分布的理论模型,并进行了试验验证。结果表明,在试验条件下,理论预测破片最大速度与试验值的误差为5.8%,表明所建立模型是可信的。与中心起爆点比较,距离起爆点最远处的破片速度最大,增益约为10.45%,破片密度则有约5.12%的降低。In order to study the velocity and destiny distribution of the eccentric detonation aimed warhead,the fragments′velocity field was aralyzed,the mode describing the ragments′ velocity and destiny distributing was established,and experiments were done to validate the model.The results show that,under the experiment condition,the error between the maximum velocity predicted by the model and the maximum velocity tested by experiment was 5.8% which means that the established model is credible.The fragment′s velocity came to maximum in the opposite direction on initiation point where the enhancement came to 10.45%,while the destiny fell for about 5.12% comparing with the center initiation.

关 键 词：爆炸力学 定向战斗部 偏心起爆 速度分布 密度分布 

分 类 号：TJ760.31[兵器科学与技术—武器系统与运用工程] O389[理学—流体力学]