Influence of containment for medium caliber electromagnetic railgun

Lou Yutao; Li Baoming

doi:10.11884/HPLPB201527.093201

Volume 27 Issue 09

Sep. 2015

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > High Power Laser and Particle Beams > 2015 > 27(09): 093201

Xiao Chengjian, Chen Xiaojun, Gong Yu, et al. Out-of-pile tritium release of LiAlO2 pebble[J]. High Power Laser and Particle Beams, 2015, 27: 016005. doi: 10.11884/HPLPB201527.016005

Citation:

Lou Yutao, Li Baoming. Influence of containment for medium caliber electromagnetic railgun[J]. High Power Laser and Particle Beams, 2015, 27: 093201. doi: 10.11884/HPLPB201527.093201

Xiao Chengjian, Chen Xiaojun, Gong Yu, et al. Out-of-pile tritium release of LiAlO2 pebble[J]. High Power Laser and Particle Beams, 2015, 27: 016005. doi: 10.11884/HPLPB201527.016005

Citation:

Lou Yutao, Li Baoming. Influence of containment for medium caliber electromagnetic railgun[J]. High Power Laser and Particle Beams, 2015, 27: 093201. doi: 10.11884/HPLPB201527.093201

PDF( 2973 KB)

Influence of containment for medium caliber electromagnetic railgun

doi: 10.11884/HPLPB201527.093201

Lou Yutao^,,
Li Baoming

1.
National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China

Received Date: 2015-05-14
Rev Recd Date: 2015-07-17
Publish Date: 2015-09-14

Abstract

Abstract

Eddy current in the containment of electromagnetic railgun is induced by the pulse current, and it will badly weaken the propulsion of the armature and the efficiency of the electromagnetic railgun (EMG) system. In order to investigate the influence of the containment on the efficiency, a full circuit model in combination with a finite element method was employed. Firstly, the launch efficiency and the eddy-current loss were calculated, and the efficiency of different containment structure and materials were discussed. Results show that, based on a medium caliber electromagnetic railgun with 10 MJ pulse power, its stainless steel containment will reduce the efficiency very seriously, and the eddy-current losses in containment are more than half of muzzle kinetic energy. While laminated structure and high permeability containment can improve the efficiency obviously. Lastly, the influence of the containment on mechanical property of the electromagnetic railgun was analysed. As a result, the decrease of the armature axial force by the containment is the primary cause of efficiency decline, and the decrease of armature radial force can increase the contact resistance between armature and rails, which will reduce the efficiency too; in addition, the decrease of the radial force of barrel components helps to reduce the preload.
- electromagnetic railgun,
- containment,
- mechanical properties,
- eddy-current loss

FullText(HTML)

References(0)

References

Relative Articles

[1]	Zhang Yue, Qi Wenjun, Chen Yang, Xu Qian. Research on susceptibility of vehicles to complex electromagnetic environment based on reverberation chamber[J]. High Power Laser and Particle Beams, 2025, 37(2): 023003. doi: 10.11884/HPLPB202537.240228
[2]	Jia Rui, Wang Chuanchuan, Wang Peng, Dai Huanyao, Ma Lei. Analysis of field distribution characteristics of controllable boundary deformation reverberation chamber[J]. High Power Laser and Particle Beams, 2024, 36(12): 123002. doi: 10.11884/HPLPB202436.240104
[3]	Wang Pingping, Cheng Erwei, Zhou Xing, Zhang Yi. Performance evaluation of the shielding effectiveness testing system for boundary deformation mutual coupling reverberation chambers[J]. High Power Laser and Particle Beams, 2024, 36(4): 043014. doi: 10.11884/HPLPB202436.230345
[4]	Cheng Erwei, Wang Pingping, Zhao Min, Meng Cui. Design and performance evaluation of boundary deformation reverberation chamber[J]. High Power Laser and Particle Beams, 2021, 33(12): 123002. doi: 10.11884/HPLPB202133.210472
[5]	Zhao Xiang, Ru Mengyuan, Yan Liping, Liu Changjun. A review of research on stirring methods of electromagnetic reverberation chamber[J]. High Power Laser and Particle Beams, 2020, 32(6): 063001. doi: 10.11884/HPLPB202032.200079
[6]	Su Zhengming, Liu Qiang, Zhao Yuan, Yan Liping, Zhao Xiang, Zhou Haijing. Design and application of flexible shielding material based reverberation chamber[J]. High Power Laser and Particle Beams, 2018, 30(7): 073202. doi: 10.11884/HPLPB201830.180048
[7]	Ji Kaifu, Wei Guanghui, Pan Xiaodong, Hu Dezhou. Calculation model of critical radiated interference E-field intensity in reverberation chamber[J]. High Power Laser and Particle Beams, 2018, 30(1): 013205. doi: 10.11884/HPLPB201830.170291
[8]	Jia Rui, Zeng Yonghu, Wang Chuanchuan. Uniformity of electromagnetic field in a pulse excited reverberation chamber[J]. High Power Laser and Particle Beams, 2015, 27(10): 103220. doi: 10.11884/HPLPB201527.103220
[9]	Cheng Erwei, Liu Yifei. Theory and application of frequency stirring reverberation chamber[J]. High Power Laser and Particle Beams, 2015, 27(10): 103202. doi: 10.11884/HPLPB201527.103202
[10]	Liang Yuying, Tu Peng, Han Zhuangzhi, Li Jiacheng, Xie Xin. Radar ground clutter statistical characteristics simulation in reverberation chamber[J]. High Power Laser and Particle Beams, 2015, 27(08): 083202. doi: 10.11884/HPLPB201527.083202
[11]	Liu Yifei, Chen Yongguang, Cheng Erwei, Wu Wei, Li Jinxi, Zhao Mo, Guo Jinghai, . Frequency stirring method and field characteristics analysis in reverberation chamber[J]. High Power Laser and Particle Beams, 2015, 27(10): 103222. doi: 10.11884/HPLPB201527.103222
[12]	Liu Yifei, Chen Yongguang, Cheng Erwei, Wang Qingguo, Jia Rui. Statistical characteristics of field distribution in nested frequency stirred reverberation chambers[J]. High Power Laser and Particle Beams, 2014, 26(02): 023202. doi: 10.3788/HPLPB201426.023202
[13]	Jia Rui, Wang Qingguo, Wang Shuqiao, Liu Yifei. Model of field-to-line coupling in a reverberation chamber based on transmission line theory[J]. High Power Laser and Particle Beams, 2014, 26(01): 014006. doi: 10.3788/HPLPB201426.014006
[14]	Jiang Lin, Wang Qingguo, Cheng Erwei. Modelling and experimental study of the number of independent samples in reverberation chamber with mechanical stirring[J]. High Power Laser and Particle Beams, 2013, 25(11): 3050-3054. doi: 10.3788/HPLPB20132511.3050
[15]	Tan Wuduan, Yu Zhiyong, Song Jianshe, Shao Zehua. Chaotic characteristics and statistic distribution of field in reverberation chamber[J]. High Power Laser and Particle Beams, 2013, 25(04): 940-944.
[16]	Liu Yifei, Chen Yongguang, Wang Qingguo, Cheng Erwei. Analysis of stirring efficiency in reverberation chamber with combined stirring[J]. High Power Laser and Particle Beams, 2013, 25(04): 963-967.
[17]	Li Shuang, Wang Jianguo, . Design of reverberation chamber excited by short pulse[J]. High Power Laser and Particle Beams, 2012, 24(06): 1439-1444. doi: 10.3788/HPLPB20122406.1439
[18]	li shuang, wang jianguo, xie haiyan, lu xicheng. Improving field uniformity in reverberation chamber with multiple sources[J]. High Power Laser and Particle Beams, 2011, 23(11): 0- .
[19]	li shuang, wang jianguo. Improvement of field uniformity by stirring source in reverberation chamber[J]. High Power Laser and Particle Beams, 2011, 23(10): 0- .
[20]	cui yaozhong, wei guanghui, fan lisi, liu xiaoqiang, pan xiaodong, chen yazhou. Simulation and experiment on optimization of position of emission antenna in reverberation chamber[J]. High Power Laser and Particle Beams, 2011, 23(08): 0- .