欢迎访问《兵工学报》官方网站,今天是 分享到:

兵工学报 ›› 2017, Vol. 38 ›› Issue (7): 1301-1306.doi: 10.3969/j.issn.1000-1093.2017.07.007

• 论文 • 上一篇    下一篇

双层药型罩形成的串联爆炸成型弹丸速度计算模型

王哲, 蒋建伟, 王树有, 任芮池   

  1. (北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081)
  • 收稿日期:2016-11-11 修回日期:2016-11-11 上线日期:2018-04-12
  • 通讯作者: 蒋建伟(1962—),男,教授,博士生导师 E-mail:bitjjw@bit.edu.cn
  • 作者简介:王哲(1989—),男,博士研究生。E-mail:994353449@qq.com
  • 基金资助:
    爆炸科学与技术国家重点实验室自主课题探索性项目(QNKT16-01);国家国防科技工业局技术基础科研项目(B2620110006)

A Calculation Model of Velocity of Tandem EFP with Double Layer Liners

WANG Zhe, JIANG Jian-wei, WANG Shu-you, REN Rei-chi   

  1. (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)
  • Received:2016-11-11 Revised:2016-11-11 Online:2018-04-12

摘要: 针对典型双层药型罩爆炸成型弹丸(EFP)装药结构,基于微元爆轰驱动及碰撞理论,考虑药型罩轴向驱动及径向压垮特性,建立了双层药型罩串联EFP速度分析模型。计算结果表明:罩微元径向压垮引起的内外罩EFP轴向速度差是串联EFP分离的核心因素;外罩EFP速度随外罩曲率及外罩所占厚度比增加而增加;内罩EFP速度随外罩曲率增加而减小,随外罩所占厚度比增加而增加。结合数值模拟与脉冲X光成型试验对所推导理论进行了验证,三者所得到的串联EFP速度吻合较好。

关键词: 兵器科学与技术, 爆轰, 串联爆炸成型弹丸, 双层药型罩, 速度

Abstract: A velocity calculation model of tandem EFP is proposed by analyzing the motion of elements in double-layer liners. The analysis shows that the difference in EFP axial velocities caused by radial velocity plays an important role in the separation of the tandem EFP. The velocity of EFP formed by outside liner increases with the increase in the curvature of outside liner and the thickness ratio of outside liner to inside liner. On the other hand, the velocity of EFP formed by inside liner decreases with the increase in curvature of outside liner, but increases with the increase in thickness ratio of outside liner to inside liner. The calculated results agree well with experimental data and simulated results by LS-DYNA.Key

Key words: ordnancescienceandtechnology, explosion, tandemEFP, doublelayerliners, velocity

中图分类号: