Simulation of Dynamic Characteristics of Armature in Magnetic Flux Compression Generator

doi:10.3969/j.issn.1000-1093.2017.02.024

Abstract

Abstract: In order to improve the performance of magnetic flux compression generator, a cylinder-conical generator is designed, and the dynamic response characteristic of armature in the generator is studied. The clustering algorithm and text mining technology are used to develop secondarily LS-DYNA software. The code which makes the node failure and separates the finite element mesh is compiled, and a simulation model is established to simulate dynamic expansion and fracture process of generator. Expansion angle, radial expansion velocity and fracture radius of armature are presented. The calculated results show that the proposed model can be used to predict the expansion and fracture process of armature, and the simulated expansion angle, radial expansion velocity and fracture radius of armature are close to the theoretical values. The method can be used for the design of the magnetic flux compression generator, optimizing the structure of generator and improving its output performance.Key

Key words: ordnancescienceandtechnology, magneticfluxcompressiongenerator, armature, fractureradius

CLC Number:

TJ99

LU Feng， CHEN Lang， FENG Chang-gen， WANG Li-hua. Simulation of Dynamic Characteristics of Armature in Magnetic Flux Compression Generator[J]. Acta Armamentarii, 2017, 38(2): 383-388.

References

［1］晏成立, 于川, 李良忠, 等. 爆炸磁通量压缩发生器金属管爆炸试验研究[J]. 高压物理学报, 1999, 13(1): 76-80.
YAN Cheng-li, YU Chuan, LI Liang-zhong, et al. Explosive bulge test for metal tube of magnetic flux compression generator (MFCG)[J]. Chinese Journal of High Pressure Physics, 1999, 13(1): 76-80. (in Chinese)
[2］ Neuber A A, Dicken S J, Coenette J B, et al. Electricalbehavior of a simple helical flux compression generator for code benchmarking[J]. IEEE Transactions on Plasma Science, 2001, 29(4): 573-578.
[3］杨显俊, 董志伟. 爆磁压缩发生器的爆炸管动力学效应[J]. 强激光与粒子束, 2007, 19(6): 889-892.
YANG Xian-jun, DONG Zhi-wei. Dynamic effect of exploding tube in MFCG[J]. High Power Laser and Particle Beams, 2007, 19(6): 889-892. (in Chinese)
[4］马月芬, 张庆明, 吴碧, 等. 爆磁压缩发生器的耦合损耗因子研究[J]. 兵工学报, 2009, 30(2): 80-83.
MA Yue-fen, ZHANG Qing-ming, WU Bi, et al. Study on coupling loss factor of magnetic flux compression generator[J]. Acta Armamentarii, 2009, 30(2): 80-83. (in Chinese)
[5］孙奇志, 孙承维. 轴线起爆式螺线管型爆磁压缩发生器理论模型[J]. 强激光与粒子束, 2009, 15(4): 385-390.
SUN Qi-zhi, SUN Cheng-wei. Model of helical magnetic compression generators with explosive initiated axially[J]. High Power Laser and Particle Beams, 2009, 15(4): 385-390. (in Chinese)
[6］何勇, 孔斌. 磁通压缩发生器数值模拟研究[J]. 南京理工大学学报， 2009, 33(5): 565-570.
HE Yong, KONG Bin. Numerical simulation of magnetic flux compression generator[J]. Journal of Nanjing University of Science and Technology, 2009, 33(5): 565-570. (in Chinese)
[7］赵继波, 孙承纬, 谷卓伟, 等.内爆圆柱套筒磁通量压缩的磁流体力学计算[J]. 强激光与粒子束, 2014, 26(9): 095003.
ZHAO Ji-bo, SUN Cheng-wei, GU Zhuo-wei, et al. Magneto-hydrodynamic calculation of magnetic flux compression using imploding cylindrical liners[J]. High Power Laser and Particle Beams, 2014, 26(9): 095003. (in Chinese)
[8］谷卓伟, 罗浩, 张恒第, 等. 炸药柱面内爆磁通量压缩实验技术研究[J]. 物理学报, 2013, 62(17): 170701.
GU Zhuo-wei, LUO Hao，ZHANG Heng-di, et al. Experimental research on the technique of magnetic flux compression by explosive cylindrical implosion[J]. Acta Physica Sinica, 2013, 62(17): 170701. (in Chinese)
[9］畅里华, 何徽, 温伟峰, 等. 炸药柱面内爆磁通量压缩超高速同时分幅/扫描摄影技术[J]. 强激光与粒子束, 2015, 27(11): 115002.
CHANG Li-hua, HE Hui, WEN Wei-feng, et al. Ultrahigh-speed simultaneous framing and streak photograph of magnetic flux compression by explosive cylindrical implosion[J]. High Power Laserand Particle Beams, 2015, 27(11): 115002. (in Chinese)

[10］ Wang Y, Zhang J, Chen D, et al. Fastmodeling of flux trapping cascaded explosively driven magnetic flux compression generators[J]. Review of Scientific Instruments, 2013, 84(1): 014703.
[11］ Xu F, Ding W. High power pulse compression using magnetic flux compression[J]. Journal of Applied Physics, 2012, 111(9): 094508.
[12］章征伟, 魏懿, 孙奇志, 等. 材料强度对电磁驱动固体套筒内爆过程的影响[J]. 强激光与粒子束, 2016, 28(4): 045017-1-5.
ZHANG Zheng-wei, WEI Yi, SUN Qi-zhi, et al. Effect of material strength on electromagnetic driven solid liner implosion[J]. High Power Laser and Particle Beams, 2016, 28(4): 045017-1-5. (in Chinese)
[13］ Kury J W, Hornig H C, Lee E L, et al. Metal acceleration by chemical explosives[C]∥Proceedings of the 4th Symposium (International) on Detonation. Arlington, VA, US: Office of Naval Research, 1965: 3-12.
[14］ Lee E L, Tarver C M. Phenomenological model of shock initiation in heterogeneous explosives[J]. Physics of Fluids, 1980, 23(12): 2362-2372.
[15］ Mott N F. Fragmentation of shell cases[J]. Proceedings of the Royal Society of London Series A-Mathematical and Physical Sciences, 1947, 189(1018): 300-308.
[16］张宝平, 张庆明, 黄风雷. 爆轰物理学[M]. 北京: 兵器工业出版社, 2001: 305-320.
ZHANG Bao-ping, ZHANG Qing-ming, HUANG Feng-lei. Detonation physics[M]. Beijing: Publishing House of Ordnance Industry, 2001: 305-320. (in Chinese)

第38卷第2期2017 年2月兵工学报ACTA
ARMAMENTARIIVol.38No.2Feb.2017

[1]	ZHANG Jiawei, LU Junyong, TAN Sai, LI Bai, ZHANG Yongsheng. Research Status of Surface Damage in Rails for Electromagnetic Launchers [J]. Acta Armamentarii, 2023, 44(7): 1908-1919.
[2]	ZHOU Bojun， YU Chuanqiang， LIU Zhihao， KE Bing. Rapid Erection Technology and Verification of Special Vehicles Based on High-Voltage Energy Storage [J]. Acta Armamentarii, 2022, 43(7): 1488-1497.
[3]	GAO Yueguang, FENG Shunshan, LIU Yunhui, HUANG Qi. Initial Velocity Distribution of Fragments from Cylindrical Charge Shells with Different Thick End Caps [J]. Acta Armamentarii, 2022, 43(7): 1527-1536.
[4]	LI Shurui， DUAN Zhuoping， ZHENG Baohui， LUO Guan， HUANG Fenglei. Cylinder Test and Equation of State for DNAN-based Aluminized Melt-cast Explosive [J]. Acta Armamentarii, 2021, 42(7): 1424-1430.
[5]	YIN Qiang， ZHANG He， LI Haojie， YANG Yuxin. Analysis of In-bore Magnetic Field in Electromagnetic Railgun Considering the Realistic Armature-rail Contact Status [J]. Acta Armamentarii, 2019, 40(3): 464-472.
[6]	FAN Wei， SU Zizhou， FAN Tianfeng, ZHANG Tao， ZHANG Honghai， LIU Yong. Geometry Design and Contact Force Analysis of C-shaped Monolithic Armature [J]. Acta Armamentarii, 2019, 40(10): 1969-1976.
[7]	HE Yong-hai, WANG Yu, TAN Cheng, LU Fa-long, JIANG Ming-yang, YAN Zhong-ming. A New Structure of Linear Rotating Accelerated Coilgun [J]. Acta Armamentarii, 2018, 39(9): 1858-1863.
[8]	WANG Zhen-chun， BAO Zhi-yong， CAO Hai-yao， LIU Fu-cai， ZHAN Zai-ji， WANG Da-zheng. Research on Contact Characteristics of Armature and Rail in Augmented Electromagnetic Railgun [J]. Acta Armamentarii, 2018, 39(3): 451-456.
[9]	LOU Wei-peng, ZHENG Chang-song, LI He-yan, CHEN Jian-wen, ZHANG Zhou-li, MA Yuan. Research on Critical Open and Close Pressures of an Oil Discharge Valve for High Speed Wet Shifting Clutch [J]. Acta Armamentarii, 2017, 38(9): 1665-1672.
[10]	WANG Xian-cheng, YANG Shao-qing, MA Ning, ZHAO Wen-zhu. Research on Wear Model for Cylinder Liners in Vehicle Diesel Engines under Dynamic Load [J]. Acta Armamentarii, 2017, 38(9): 1673-1680.
[11]	SUN Hao-ze, CHANG Tian-qing, WANG Quan-dong, KONG De-peng, DAI Wen-jun. Image Detection Method for Tank and Armored Targets Based on Hierarchical Multi-scale Convolution Feature Extraction [J]. Acta Armamentarii, 2017, 38(9): 1681-1691.
[12]	ZHANG Yu-yan, SUN Sha-sha, WANG Zhen-chun, CAO Hai-yao, ZHAN Zai-ji. Simulation and Measurement of Surface Transient Temperature Field of High-speed Current-carrying Armature [J]. Acta Armamentarii, 2017, 38(9): 1692-1698.
[13]	LI Chen-ming， HUAN Chao， SHI Huai-long. Optimal Fire Distribution of a Rocket Launcher against Area Target [J]. Acta Armamentarii, 2017, 38(9): 1699-1704.
[14]	LEI Juan-mian, ZHANG Jia-wei, TAN Zhao-ming. Influence of Boattail on the Magnus Effect of Spinning Non-finned Projectile at Small Angles of Attack [J]. Acta Armamentarii, 2017, 38(9): 1705-1715.
[15]	LI Ze, YAN Xiao-peng, LI Ping, HAO Xin-hong, WANG Jian-tao. Jamming Mechanism of Frequency Sweep Jamming to FM Doppler Fuze [J]. Acta Armamentarii, 2017, 38(9): 1716-1722.