利用LS-DYNA显示动力分析有限元程序,采用流固耦合方法,对带尾翼EFP的形成过程进行数值模拟。结果表明:该装药结构能形成带有8个尾翼的EFP,带尾翼EFP的长径比是EFP长径比的2.23倍,其头部速度比EFP增加了15%。
Numerical simulation of the forming process of the fin?adhered EFP was carried out with the ALE method using LS?DYNA. The result indicates that such a charge structure can form EFP with eight fins,the length?diameter ratio of EFP with fins is 2.23 times than that of EFP without fins,and velocity increases by 15 percent.
参考文献
[1] | 左振英,李伟录.贴片球缺药型罩成型斜置尾翼EFP的数值模拟[J].弹道学报,2010(03):73-77. |
[2] | Bouet T H;Tarayre P;Guillon J P.Study of amulti-point igni-tion EFP[A].Isra-el,1995:159-166. |
[3] | Joseph C;David E B;Richard Fong.A unique method of pro-viding an explosively formed penetrator with fins[A].The South African Ballistics Organization,1998:55-62. |
[4] | Weim ann K.Flight stability of EFP with star shaped tail[A].Queber,Canada,1993:755-763. |
[5] | 赵慧英,沈兆武,李成兵,马宏昊,梅群.带尾翼爆炸成型弹丸的新技术[J].含能材料,2006(02):102-104,2. |
[6] | 林加剑,沈兆武,任辉启,樊自建,蒋耀港.一种形成尾翼型聚能侵彻体新方法的实验研究[J].实验力学,2008(05):449-454. |
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