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弹箭与制导学报 >

2015 , Vol. 35 >Issue 3: 152 - 156

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.03.038

相关技术

被动电磁装甲对聚能射流的电-热作用耦合分析

  • 苑希超 ,
  • 雷彬 ,
  • 李治源 ,
  • 陈少辉
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  • 1 解放军军械工程学院,石家庄 050003
    2 北京航空工程技术研究中心,北京 100076

苑希超(1985-),男,河北邢台人,博士研究生,研究方向:特种机电系统设计与试验技术。

收稿日期: 2014-06-19

  网络出版日期: 2025-05-26

基金资助

国家自然科学基金(51307182)

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Coupled Analysis of Electrothermic Action on Shaped Charge Jet in the Passive Electromagnetic Armor

  • YUAN Xichao ,
  • LEI Bin ,
  • LI Zhiyuan ,
  • CHEN Shaohui
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  • 1 Ordnance Engineering College of PLA, Shijiazhuang 050003, China
    2 Beijing Aeronautical Technology Research Center, Beijing 100076, China

Received date: 2014-06-19

  Online published: 2025-05-26

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摘要

为提高被动电磁装甲防护效果,研究了被动电磁装甲的电-热作用机理,建立了被动电磁装甲对均匀拉伸聚能射流的电-热作用耦合分析模型,进行了静态铜杆和运动射流温度场分布的数值分析。通过试验验证了耦合分析模型的正确性和可行性。运动模型的分析结果表明射流侵彻被动电磁装甲时,射流的熔化开始于速度为5.8km/s左右的射流中部,而气化和电爆炸现象发生在速度小于4.5km/s的射流尾部。分析结果也为被动电磁装甲的优化提供了研究基础。

关键词： 被动电磁装甲; 金属射流; 电爆炸; 电-热耦合; 温度场; 时域差分法

本文引用格式

苑希超 , 雷彬 , 李治源 , 陈少辉 . 被动电磁装甲对聚能射流的电-热作用耦合分析[J]. 弹箭与制导学报, 2015 , 35(3) : 152 -156 . DOI: 10.15892/j.cnki.djzdxb.2015.03.038

Abstract

To enhance protective effect of passive electromagnetic armor, the electrothermic action mechanism of the passive electromagnetic armor is researched. Coupled analysis model of electrothermic action on uniformly elongating shaped charge jet in the passive electromagnetic armor is established. By comparison of static simulation and testing, correctness and feasibility of the coupled analysis model is proved. The results show that, The liquefaction occurs in the middle of the jet whose velocity is about 5.8 km/s, well the gasification occurs in the jet tail whose velocity is less than 4.5 km/s. The analysis results indicate the significance of electrothermic action and the effect of temperature, which provides a research base for the optimization of passive electromagnetic armor.

Key words： passive electromagnetic armor; shaped charge jet; electric exploding; coupled analysis; temperature field; simulation analysis; finite-difference time-domain method

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参考文献

[1]
Shvetsov G A, Bashkatov Y L, Matrosov A D, et al. Use of MCG in experiments on current break up of shaped charge jets[C] // 7th International Conference on Megagauss Magnetic Field Generation and Related Topics. Sarov, 1996.
[2]
Hollandsworth C E, Powell J D, Keele M J, et al. Electrical conduction in exploded segmented wires[J]. Journal of Applied Physics, 1998, 84(9): 4992-5000.
[3]
Mayseless M, Gruss E, Me-Bar Y, et al. Electrical explosion of undulated wires[C] // 21th International Symposium on Ballistics. Australia, 2004.
[4]
Wickert M. Electric armor against shaped charges: Analysis of jet distortion with respect to jet dynamics and current flow[J]. IEEE Transactions on Magnetics, 2007, 43(1): 426-429.
[5]
Appelgren P, Larsson A, Lundberg P, et al. Studies of electrically-exploded conductors for electric armour applications[C] // 2nd Euro-Asian Pulsed Power Conference. Vilnius, Lithuania, 2008: 1072-1074.
[6]
Allison F E, Vitali R A. A new method of computing penetration variables for shaped-charge jets[R]. Maryland: Ballistic Research Laboratory, 1963.
[7]
Wolfgang S. Modified SDM model for the calculation of shaped charge hole profiles[J]. Propellants, Explosive, Pyrotechnics, 1994, 19(4): 192-201.
[8]
李明洲, 夏立信, 李著恺, 等. 重有色金属加工手册:第一分册[M]. 北京: 冶金工业出版社, 1979: 40-42.
[9]
苑希超, 雷彬, 李治源, 等. 被动电磁装甲对金属射流箍缩电磁力的计算及验证[J]. 高电压技术, 2013, 39(1): 251-256.
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