电磁发射弹丸膛口磁场分布特性分析

doi:10.19595/j.cnki.1000-6753.tces.191774

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1149 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract The current flowing in rail is transferred from armature to the arc device or the arc suppression device at the moment electromagnetic (EM) launch projectile leaves from the chamber, which may cause a rapid change of muzzle magnetic field. Aiming at the special arc phenomenon when EM launch projectile leaves the chamber, firstly, a Cassie model was used to analyze the process of arc transference and obtain the current in arc device. Secondly, the magnetic field simulation model during the arcing was obtained by establishing a three-dimensional transient magnetic field simulation model of circuits of guide rail and arc. Finally, the velocity of arc root was measured by the principle of binocular vision and was converted into a velocity correction term of muzzle magnetic field. Therefore, the muzzle magnetic field simulation model considering arc motion was obtained. On this basis, the distribution of magnetic field in the projectile when it leaves the chamber was simulated. The simulation results show that the amplitude of muzzle magnetic field is lower than that of in-bore magnetic field, but the change rate of muzzle magnetic field is greater than that of in-bore magnetic field, with a peak value of 8 518T/s. The paper can provide a reference for the layout and design of onboard devices in EM launch guided projectile.

Key words： Electromagnetic launch projectiles the magnetic field when the chamber Cassie arc model binocular vision the device layout

Received: 17 December 2019

PACS:

TM33

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Xiangping
	Lu Junyong
	Zhang Xiao
	Feng Junhong
	Cai Xiyuan

Cite this article:

Li Xiangping,Lu Junyong,Zhang Xiao等. Analysis of Distribution Characteristics of Electromagnetic Launcher Projectile Muzzle Magnetic Field[J]. Transactions of China Electrotechnical Society, 2021, 36(3): 525-531.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191774 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I3/525

[1] 高成, 刘晓, 石立化, 等. 低频强磁场屏蔽效能的测试方法与测试设备研制[J]. 高电压技术, 2010, 36(9): 2272-2277.
Gao Cheng, Liu Xiao, Shi Lihua, et al.Measurement method and measurement equipment development for low-frequency magnetic field[J]. High Voltage Engin- eering, 2010, 36(9): 2272-2277.
[2] 李湘平, 鲁军勇, 李玉, 等. 基于解析法的电磁发射弹丸内膛磁场分布特性分析[J]. 兵工学报, 2016, 37(12): 2205-2211.
Li Xiangping, Lu Junyong, Li Yu, et al.Analysis of distribution characteristics of in-bore magnetic field of electromagnetically launched projectile based on analytical method[J]. Acta Armamentarii, 2016, 37(12): 2205-2211.
[3] 李湘平, 鲁军勇, 李玉, 等. 电磁发射弹丸膛内磁场分布特性的三维数值分析[J]. 电机与控制学报, 2018, 22(8): 34-40.
Li Xiangping, Lu Junyong, Li Yu, et al.3-D numerical analysis of distribution characteristics of electromagnetic launcher projectile in-bore magnetic field[J]. Electric Machines and Control, 2018, 22(8): 34-40.
[4] 汤铃铃, 李豪杰. 电磁轨道炮膛内磁场环境仿真分析[J]. 计算机仿真, 2014, 31(11): 1-6.
Tang Lingling, Li Haojie.Simulation analysis of railgun in-bore high magnetic field[J]. Computer Simulation, 2014, 31(11): 1-6.
[5] 殷强, 张合, 李豪杰, 等. 静止条件下轨道炮膛内磁场分布特性分析[J]. 强激光与粒子束, 2016, 28(2): 025008-1-025008-6.
Yin Qiang, Zhang He, Li Haojie, et al. Analysis of railgun in-bore magnetic field distribution at zero speed[J]. High Power Laser and Particle Beams, 2016, 28(2): 025008-1-025008-6.
[6] 黄绍平, 杨青, 李靖. 基于MATLAB的电弧模型仿真[J]. 电力系统及其自动化学报, 2005, 17(5): 64-67.
Huang Shaoping, Yang Qing, Li Jing.Simulation of arc models based on MATLAB[J]. Proceedings of the CSU-EPSA, 2005, 17(5): 64-67.
[7] 蒋原, 李擎, 崔家瑞, 等. 纵向磁场下中频真空电弧的重燃现象分析[J]. 电工技术学报, 2020, 35(18): 3860-3868.
Jiang Yuan, Li Qing, Cui Jiarui, et al.Re-ignition of intermediate frequency vacuum arc at axial magnetic field[J]. Transactions of China Electrotechnical Society, 2020, 35(18): 3860-3868.
[8] Lowke J J, Kovitya P, Schmidt H P.Theory of free- burning arc columns including the influence of the cathode[J]. Journal Physics D: Apply Physics, 1992, 25: 1600-1606.
[9] 付思, 曹云东, 李静, 等. 触头分离瞬间真空金属蒸气电弧形成过程的仿真[J]. 电工技术学报, 2020, 35(13): 2922-2931.
Fu Si, Cao Yundong, Li Jing, et al.Simulation researches on vacuum metal vapor arc formation at the initial moment of contact parting[J]. Transactions of China Electrotechnical Society, 2020, 35(13): 2922-2931.
[10] 张明, 王永兴, 田宇, 等. 气流场驱动下栅片中弧压提升特性的数值分析[J]. 电工技术学报, 2019, 34(13): 2752-2759.
Zhang Ming, Wang Yongxing, Tian Yu, et al.Nume- rical analysis of arc voltage increasing characteristics in plate driven by airflow field[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2752-2759.
[11] 熊兰, 曾泽宇, 杨军, 等. 小电流直流故障电弧的数学模型及其特性[J]. 电工技术学报, 2019, 34(13): 2820-2829.
Xiong Lan, Zeng Zeyu, Yang Jun, et al.Mathematical model and characteristics of low current DC fault arc[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2820-2829.
[12] 曹启纯,刘向军. 高压直流继电器电弧运动仿真分析与实验研究[J]. 电工技术学报, 2019, 34(22): 4699-4707.
Cao Qichun, Liu Xiangjun.Simulation analysis and experimental research on arc motion in high voltage DC relay[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4699-4707.