摘要
根据高速杆式弹丸的特点和经典射流理论分析高速杆式弹丸的成型条件,提出了高速杆式弹丸的设计准则。应用LS-DYNA软件对设计的变球缺罩装药结构进行数值模拟,得到该装药结构下高速杆式弹丸的成型过程和成型机理。通过模拟计算得到了药型罩结构参数和起爆方式对弹丸成型的影响规律,并初步确定药型罩结构参数间的相互关系:药型罩直径D,内径R1=(0.55～0.6)D,外径R2=(0.58～0.62)D,药型罩高度为H=(0.3～0.35)D,半锥角α=82°～86°。
According to the features of high velocity rod-shaped projectile and classical theory of shaped jet, formation qualifications of high velocity rod-shaped projectile were analyzed and some design guidelines were put forward. The shaped charge with modified hemispherical liner was simulated by LS-DYNA software. The formation process and mechanism of the high velocity rod-shaped projectile were obtained. The effects of structural parameters of liner and initiation methods on projectile formation and performance parameters were shown by simulation, the interrelations of structural parameters of liner were preliminarily fixed on ： the inner radius of liner R1 = （0.55 - 0.6 ） D, outer radius R2 = （0.58 - 0.62） D, height H = （0.3 - 0.35 ） D, half cone angle α = 82° - 86°, where D is diameter of liner.
出处
《含能材料》
EI
CAS
CSCD
2007年第3期248-252,共5页
Chinese Journal of Energetic Materials
基金
国防预研项目(413260401)
关键词
爆炸力学
高速杆式弹丸
药型罩
结构参数
起爆方式
explosion mechanics
high velocity rod-shaped projectile
liner
structural parameter
initiation method
