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形成尾翼爆炸成型弹丸的贴片方法 认领 被引量:1

Foil Method of Producing Explosively Formed Projectile with Star-shaped Tail
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摘要 提出一种可形成尾翼爆炸成型弹丸的贴片方法。对典型的尾翼EFP形成技术进行总结,分析贴片方法形成尾翼EFP的原理和特点。对所设计的EFP战斗部进行成型过程、气动力系数和飞行弹道计算。结果表明,采用贴片方法可以形成尾翼EFP,其基本原理是通过使药型罩周边变形产生周期性有规律的速度差异来实现的,尾翼的数量和贴片的数量相匹配,所设计的尾翼EFP具有较高的飞行稳定性和较小的速度降。 A new foil method to produce explosively formed projectile with star-shaped tail is brought forward and verified by numerical simulation. Some typical technology which can produce EFP with star-shaped tail are summarized and generalized, and the principle and characteristic of foil method is analyzed. The process of formation, aerodynamic coefficient and trajectory of EFP are calculated. The results show that foil method can produce EFP with star-shaped tail. The elemental principle is that foil can generate speed difference periodically in peripheral liner. The number of tail is consistent with the number of foil. The designed EFP have good aerodynamic stability and small speed drop.
作者 时党勇 张庆明 翟喆 夏长富 SHI Dang-yong, ZHANG Qing-ming, ZHAI Zhe, XIA Chang-fu(1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081 ; 2. Command Institute of Engineer Corps, Xuzhou, 221004)
出处 《火工品》 CAS CSCD 北大核心 2009年第6期 46-49,共4页 Initiators & Pyrotechnics
关键词 尾翼爆炸成型弹丸 贴片方法 LS-DYNA 数值模拟 EFP with star-shaped tail Foil method LS-DYNA Numerical simulation
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