高压物理学报2012，Vol.26Issue(4)：442-448,7.
偏心起爆战斗部随机破片数值仿真
Numerical Simulation of the Dispersion of Random Fragments under Asymmetrical Initiation
摘要
Abstract
Using AUTODYN-3D and the Stochastic random fragmentation model which based on the Mott＇s fragment distribution law,the scattering properties of the warhead fragments are numerically simulated and analyzed under three different ways of initiation including center point initiation,asymmetrical single point initiation and asymmetrical multi-point initiation.The results show that compared with center point initiation,the numbers of random fragments in the target area produced under asymmetrical single point initiation and asymmetrical multi-point initiation are increased by 37.12% and 62.86%,the availabilities of the fragments are improved by 4.01%-6.08%,and the average velocity gains are 25.95% and 28.37% respectively.Furthermore,the effects of the initiation radius on the scattering properties of the random fragments are obtained under asymmetrical initiation.It is shown that the numbers of fragments in the target area,the axial velocity and radial velocity are all reduced with the initiation radius increasing.关键词
随机破片/偏心起爆/中心点起爆/飞散特性/起爆半径Key words
random fragment/asymmetrical initiation/center point initiation/scattering property/initiation radius分类
数理科学引用本文复制引用
张博,李伟兵,李文彬,王晓鸣,高旭东,郑宇..偏心起爆战斗部随机破片数值仿真[J].高压物理学报,2012,26(4):442-448,7.基金项目
江苏省普通高校研究生科研创新计划项目 （）
南京理工大学自主科研专项计划项目 （）
