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工程力学  2015 

被动电磁装甲对铜射流破坏作用仿真与实验研究

DOI: 10.6052/j.issn.1000-4750.2014.11.0975, PP. 250-256

Keywords: 被动电磁装甲,脉冲电流,射流,趋肤效应,颈缩,扭曲,横向电磁力

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Abstract:

为了实现被动电磁装甲对射流的防护作用,分别对轴向脉冲电流对射流的颈缩、扭曲作用及装甲板对射流产生的横向电磁力作用机理进行了理论分析,考虑脉冲电流趋肤效应和射流为率相关弹塑性模型的前提下,利用ANSYS对这三种作用机理进行了电磁结构耦合仿真,分别得到了电流密度、磁感应强度、电磁力在射流上的分布规律以及射流的最终变形。最后针对三种作用机理分别进行了实验,实验结果证实了被动电磁装甲能够对射流产生破坏作用,在静破甲试验中,当充电电压为5kV左右,峰值电流为150kA时,直径为39.2mm的破甲弹产生的射流侵彻深度降低了8.6%。

References

[1]  Walker E H. Defeat of shaped-charge devices by active armor [R]: Aberdeen Proving Ground, MD: U.S: Army Ballistic Research Laboratory, 1973: 534―541.
[2]  赵建波, 司秀勇, 白象忠. 电磁轨道发射过程中电枢运动特性参量的一种简捷算法[J]. 工程力学, 2012, 29(10): 372―377.
[3]  Zhao Jianbo, Si Xiuyong, Bai Xiangzhong. A simple algorithm for the armature’s motion parameters during railgun’s launch process [J]. Engineering Mechanics, 2012, 29(10): 372―377. (in Chinese)
[4]  汪忠明, 梁晓东, 沈鑫. 电-力耦合效应对三位导电弹性体表面失态的影响[J]. 工程力学, 2013, 30(11): 143―147.
[5]  Wang Zhongming, Liang Xiaodong, Shen Xin. The surface instability of a three-dimensional conductive elastic body subject to electro-mechanical coupling field [J]. Engineering Mechanics, 2013, 30(11): 143―147. (in Chinese)
[6]  Shvetsov G A, Matrosov A D, Pavlovskii A I. Current instability of shaped charge jets [C]. Albuquerque, USA: in 10th Pulsed Power Conference, 1995: 1136―1141.
[7]  Plyashkevich L N, Shuvalov A M, Spirov G M, et al. Disruption of shaped-charge jets by a current [J]. Combustion, Explosion, and Shock Waves, 2002, 38(5): 602―605.
[8]  Babkin A V, Kruzhkov V A, Ladov S V, et al. The behavior of a shaped charge jets under the effect of current impulse [C]. Sarov: in 7th International Conference on Megagauss Magnetic Field Generation and Related Topics, 1996: 204―211.
[9]  牛高, 杨毅, 刘旭东, 等. 电磁箍缩铝带阵负载的研制[J]. 强激光与粒子束, 2014, 26(7): 1―4.
[10]  Niu Gao, Yang Yi, Liu Xudong, et al. Preparing aluminum cingulum array load for Z-pinch [J]. High Power Laser and Particle Beams, 2014, 26(7): 1―4. (in Chinese)
[11]  蒋树庆, 陈法新, 夏广新, 等. 单层钨丝阵Z箍缩内爆不稳定性特征实验研究[J]. 强激光与粒子束, 2013, 25(11): 3069―3072.
[12]  Jiang Shuqing, Chen Faxin, Xia Guangxin, et al. Experimental study of implosion instability characteristics in imploding single tungsten wire array Z-pinches [J]. High Power Laser and Particle Beams, 2013, 25(11): 3069―3072. (in Chinese)
[13]  Shvetsov G A, Matrosov A D, Fedorov S V, et al. Influence of magnetic fields on shaped-charge performance [C]. Sarov: in Pulsed Power Plasma Science, 2001: 182―186.
[14]  Shvetsov G A, Matrosov A D. Disruption of shaped- charge jets by a pulsed current [J]. Journal of Applied Mechanics and Technical Physics, 2004, 45(2): 269―275.
[15]  Matrosov A D, Shvetsov G A. Experimental investigation of current instability of shaped-charge jets [J]. Journal of Applied Machanics and Technical Physics, 1996, 37(4): 464―469.
[16]  Shvetsov G A, Matrosov A D, Babkin A V, et al. Disruption of shaped-charge jets due to axial current [C]. San Antonio: In 18th International Symposium on Ballistics, 1999: 581―587.
[17]  陈少辉. 被动被动电磁装甲对破甲弹的防护机理研究[D]. 石家庄: 军械工程学院, 2010: 31―32. Chen Shaohui. Research on defense mechanism of passive electromagnetic armor against shaped charge jet [D]. Shijiazhuang: Mechanical Engineering College, 2010: 31―32. (in Chinese)
[18]  余希同, 邱信明. 冲击动力学[M]. 北京: 清华大学出版社, 2011: 62―65.
[19]  Yu Xitong, Qiu Xinming. Impact dynamics [M]. Beijing: Tsinghua University Press, 2011: 62―65. (in Chinese)

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