[1]郭仁荃,李豪杰,杨宇鑫.基于COMSOL的轨道炮弹引信部位磁场组合屏蔽仿真[J].探测与控制学报,2020,42(03):8.[doi:.]
 GUO Renquan,LI Haojie,YANG Yuxin.COMSOL Simulation of Railgun Projectile Fuze Combination Magnetic Shielding[J].,2020,42(03):8.[doi:.]
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基于COMSOL的轨道炮弹引信部位磁场组合屏蔽仿真()
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《探测与控制学报》[ISSN:1008-1194/CN:61-1316/TJ]

卷:
42
期数:
2020年03
页码:
8
栏目:
出版日期:
2020-06-15

文章信息/Info

Title:
COMSOL Simulation of Railgun Projectile Fuze Combination Magnetic Shielding
文章编号:
1008-1194(2020)03-0008-06
作者:
郭仁荃李豪杰杨宇鑫
南京理工大学智能弹药技术国防重点学科实验室,江苏 南京 210094
Author(s):
GUO Renquan LI HaojieYANG Yuxin
ZNDY of Ministerial Key Laboratory, NUST, Nanjing 210094,China
关键词:
轨道炮COMSOL面电流模型磁场组合屏蔽
Keywords:
railgun COMSOL surface current model magnetic combination shielding
分类号:
TM153;TJ430
DOI:
.
文献标志码:
A
摘要:
针对电磁轨道炮发射的弹丸中,引信部位电子器件会受到低频脉冲强磁场干扰的问题,在采用COMSOL仿真软件建立轨道炮面电流模型,进而分析发射过程中电枢前端磁场分布的基础上,对铜1J22、铜铁、铝坡莫合金三种组合屏蔽方式及铝坡莫合金屏蔽层厚度比例对屏蔽性能的影响进行了仿真。仿真结果表明,发射过程中距离电枢前端越近磁场越强且屏蔽效能越差;三种屏蔽方式下铝坡莫合金的屏蔽效能最好,在电枢前端10 mm位置屏蔽前后磁通密度为2.902 5 T和0.109 9 T,屏蔽效能可达到28.44 dB;在总厚度为4.5 mm的铝坡莫合金屏蔽组合方式中,导磁材料坡莫合金厚度增加屏蔽性能也会提高,但其层厚度增加超过2.5 mm时对屏蔽效能的影响已不那么显著且最后将趋于某一恒定值。
Abstract:
Aiming at the problem that the electronic device of fuze in railgun was interfered by the low-frequency pulsed magnetic field, the surface current model was established to analyze the magnetic field distribution of the armature front end during launching based on COMSOL. This paper simulated the effectiveness of three kinds of combined shielding methods of copper-1J22,copper-iron and aluminum-permalloy and the thickness ratio of aluminum-permalloy shielding layer on shielding performance. The simulation results showed that the closer the armature front end of, the stronger the magnetic field and the worse the shielding effectiveness.The shielding effectiveness of aluminum-permalloy was the best under the three shielding modes, the shielding flux density was 2.9025T to 0.1099T after shielding at the 10 mm of the armature front end, and the shielding effectiveness could reach 28.44 dB. In the aluminum-permalloy shielding combination with a total thickness of 4.5mm, the shielding effectiveness increased with the permalloy thickness increase. However, the effect on the shielding effectiveness was less significant and eventually tend to a constant value when the layer thickness was increased by more than 2.5 mm

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备注/Memo

备注/Memo:
收稿日期:2019-12-06
作者简介:郭仁荃(1994—),男,海南五指山人,硕士研究生,研究方向:引信安全系统与控制技术。E-mail: 695833249@qq.com
更新日期/Last Update: 2020-07-15