摘要
为了获得预制破片战斗部破片的飞散规律,利用ANSYS/LS-DYNA有限元软件对某底凹预制破片弹壳体的膨胀和预制破片的飞散过程进行了数值模拟,得到了预制破片初速和飞散方向角沿弹轴分布曲线,其结果与经验公式计算结果具有较好的一致性。
In order to grasp dispersion law of performed warhead fragments, the numerical simulation of expansion of shell with hollow base and dispersion process of performed fragments was conducted based on ANSYS/LS-DYNA finite element program, and initial velocity and distribution curve of fragments were analyzed in coordinate. The numerical simulation result is consistent with that obtained by empirical formula.
出处
《弹箭与制导学报》
CSCD
北大核心
2009年第4期96-98,102,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
预制破片
破片初速
LS-DYNA
数值模拟
performed fragments
initial velocity of fragment
LS-DYNA
numerical simulation
