轨道炮电枢电动力转捩形成机理与仿真分析

doi:10.16182/j.issn1004731x.joss.201803040

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (3): 1090-1095.doi: 10.16182/j.issn1004731x.joss.201803040

轨道炮电枢电动力转捩形成机理与仿真分析

王志恒^1,2, 万敏¹, 李小将¹

1.航天工程大学研究生院,北京 101416;
2.中国人民解放军91550部队,大连 116023

收稿日期:2016-03-10 出版日期:2018-03-08 发布日期:2019-01-02
作者简介:王志恒(1988-),男,满族,吉林四平,博士生,研究方向为电磁轨道发射理论与技术;万敏(1988-),男,江苏常州,硕士生,研究方向为电磁轨道发射理论与技术;李小将(1973-),男,江西南昌,博士,教授,研究方向为武器系统运用于分析。

Formation Mechanism and Simulation Analysis of Railgun Armature Electromagnetic Transition

Wang Zhiheng^1,2, Wan Mei¹, Li Xiaojiang¹

1.University of Space Engineering Graduate School, Beijing 101416, China;
2.Unit 91550 of PLA, Dalian 116023, China

Received:2016-03-10 Online:2018-03-08 Published:2019-01-02

摘要/Abstract

摘要： 轨道炮电枢转捩引起轨道烧蚀和发射参数变化,是制约轨道炮性能提升的关键问题之一。分析了电流下降段轨道炮电枢电动力转捩形成机理,给出了电枢转捩判断模型和电磁场参数计算模型,采用有限元软件ANSYS Workbench对电枢转捩形成过程进行了仿真分析,仿真了该过程中的电流、电磁力分布以及电磁力引起的电枢形变情况,分析了电流下降率对电枢转捩的影响。仿真分析结果表明：电流下降段电枢内部会感应出涡流,涡流可能引起电枢尾部区域电磁力改变方向,甚至电枢尾部形变,进而导致电枢转捩发生;电流下降率越大则电枢受到的反向电磁力越大,电枢转捩越容易发生。

关键词: 电磁轨道炮, 电枢转捩, 电流下降, 电弧接触, 滑动电接触

Abstract: Armature transition of railgun causes rails erosion and change of launching parameters, which is one of the key problems restricting the performance of railgun. The formation mechanism of armature transition at the down-slope of driving current is analyzed. The armature transition estimation model and electromagnetic parameters calculation model are given. The formation process of armature transition at the down-slope of driving current is simulated by AYNSYS Workbench. The current and magnetic field distribution are simulated, so as the armature deformation caused by the armature electromagnetic force. The effect of current dropping rate on armature transition is analyzed. The simulation and analysis result show that, the eddy current at current down-slope may lead to change the direction of electromagnetic force in armature tail, even the deformation of armature tail, which leads to the armature transition. The reverse electromagnetic force in armature tail increases with the increasing of the driving current dropping rate. As a result, the armature transition occurs more easily.

Key words: railgun, armature transition, current down-slope, arc contact, sliding electric contact

中图分类号:

TM89

王志恒, 万敏, 李小将. 轨道炮电枢电动力转捩形成机理与仿真分析[J]. 系统仿真学报, 2018, 30(3): 1090-1095.

Wang Zhiheng, Wan Mei, Li Xiaojiang. Formation Mechanism and Simulation Analysis of Railgun Armature Electromagnetic Transition[J]. Journal of System Simulation, 2018, 30(3): 1090-1095.

参考文献 11

[1]	Sikhanda Satapathy, Harold Vanicek.Down-Slop contact transition in railguns[J]. IEEE Transactions on Magnetics (S0018-9464), 2007, 43(1): 402-407.
[2]	冯登, 夏胜国, 陈立学, 等. 基于过盈配合的C形电枢轨道初始特性分析[J]. 高电压技术, 2014, 40(4): 1077-1083.Feng Deng, Xia Shengguo, Chen Lixue, et al. Characteristics analysis of the initial contact between C-Shaped armature and rail based on interference fit [J]. High Voltage Engineering, 2014, 40(4): 1077-1083.
[3]	关晓存, 鲁军勇. 脉冲电流作用下枢轨接触面瞬态摩损量计算[J]. 强激光与粒子束, 2014, 26(11): 225-230.Guan Xiaocun, Lu Junyong. Transient wear capacity calculation of armature-rail interface in pulse current [J]. High Power Laser and Particle Beams, 2014, 26(11): 225-230.
[4]	朱仁贵, 张倩, 李治源, 等. 高功率脉冲电流作用下滑动界面初始熔蚀的试验研究[J]. 高电压技术, 2015, 41(6): 1879-1884.Zhu Rengui, Zhang Qian, Li Zhiyuan, et al. Experiment research on initial melt erosion at the sliding surface under high power pulse current [J]. High Voltage Engineering, 2015, 41(6): 1879-1884.
[5]	Li M T, Yan P, Yuan W Q, et al.Electrodynamic force analysis of armature-rail tight contact in electromagnetic launcher[C]//Pulsed Power Conference, 2009. PPC '09. IEEE. IEEE, 2009: 1285-1289.
[6]	巩飞, 翁春生. 电磁轨道炮固体电枢熔化波烧蚀过程的三维数值模拟研究[J]. 高电压技术, 2014, 40(7): 2245-2250.Gong Fei, Weng Chunsheng. 3-D numerical study of Melt wave erosion in solid armature railgun [J]. High Voltage Engineering, 2014, 40(7): 2245-2250.
[7]	Gong Fei, Weng Chunsheng.The effects of rail coatings on melt-wave erosion in block armatures[J]. International Journal of Applied Electromagnetics (S1383-5416), 2012, 40(4): 323-331.
[8]	陈允, 徐伟东, 袁伟群, 等. 电磁发射中铝电枢与不同材料导轨间的滑动电接触特性[J]. 高电压技术, 2013, 39(4): 937-942.Chen Yun, Xu Weidong, Yuan Weiqun, et al. Sliding electrical contact between aluminum armature and different material rails in railgun [J]. High Voltage Engineering, 2013, 39(4): 937-942.
[9]	Stefani F, Levinson S, Satapathy S, et al.Electrodynamic Transition in solid armature railguns[J]. IEEE Transactions on Magnetics (S0018-9464), 2001, 31(1): 101-105.
[10]	何勇, 宋盛义, 关永超, 等. 电磁轨道炮高速滑动接触电阻的定量表征[J]. 强激光与粒子束, 2014, 26(4): 81-84.He Yong, Song Shengyi, Guan Yongchao, et al. Quantative expression of sliding contact resistance between armature and rail in railgun [J]. High Power Laser and Particle Beams, 2014, 26(4): 81-84.
[11]	杨玉东, 薛文. 电磁发射装置电-磁-热场分布的分析与仿真[J]. 火力与指挥控制, 2015, 40(6): 145-147.Yang Yudong, Xue Wen. Analysis and simulation of electric field and thermal field distribution for electromagnetic Launch [J]. Fire Control and Command Control, 2015, 40(6): 145-147.

轨道炮电枢电动力转捩形成机理与仿真分析

Formation Mechanism and Simulation Analysis of Railgun Armature Electromagnetic Transition

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 11

相关文章 2

编辑推荐

Metrics

本文评价

[1]	王宏伟, 张凯, 王智勇, 郭凤仪, 刘帅, 张琼. 不同行车间隔下接触网导线温升特性仿真研究[J]. 系统仿真学报, 2018, 30(6): 2125-2132.
[2]	郭凤仪, 高洪鑫, 刘帅, 王智勇, 张凯, 王爱军. 载流滑动摩擦副温度场瞬态特性仿真研究[J]. 系统仿真学报, 2018, 30(5): 1715-1723.