电磁轨道炮无线电引信综合电磁防护方法  

Comprehensive Electromagnetic Protection Method of Radio Fuze for Electromagnetic Railgun

作　　者：文瑞虎 栗苹[1] 黄峥[2] 王海彬[2] 李鹏斐[1] WEN Ruihu;LI Ping;HUANG Zheng;WANG Haibin;LI Pengfei(School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;Science and Technology on Electromechanical Dynamic Control Laboratory,Xi'an Institute of Electromechanical Information Technology,Xi'an 710065,Shaanxi,China)

机构地区：[1]北京理工大学机电学院,北京100081 [2]西安机电信息技术研究所机电动态控制重点实验室,陕西西安710065

出　　处：《兵工学报》2024年第11期3833-3840,共8页Acta Armamentarii

摘　　要：电磁轨道炮发射时膛内瞬变强磁场环境会使无线电引信电路中产生感应电流,对引信正常工作产生影响,因此需要采取合理的电磁屏蔽和防护措施保证引信可靠工作。针对上述问题,基于法拉第电磁感应定律,提出电磁轨道炮无线电引信综合电磁防护方法,即利用高磁导率材料壳体进行磁屏蔽,降低引信电路的磁感应强度;利用高电导率材料的涡流效应降低引信电路中的磁感应强度变化率;通过优化电路设计,减小引信电路回路面积;通过电路板布局,减小引信电路与磁场的点乘。强磁场环境下无线电引信的有限元模型的仿真分析结果表明,上述电磁防护方法有效,所得研究结果能够为电磁轨道炮无线电引信设计提供参考。The transient strong magnetic field environment in the bore during the launch of electromagnetic railgun can lead to the induced current in the radio fuze circuit,which affects the normal operation of fuze.Therefore,the shielding and protective measures need to be taken for the reliable operation of fuze.Based on Faraday s law of electromagnetic induction,a comprehensive electromagnetic protection method is proposed for the radio fuze of electromagnetic railgun.A high permeability material shell is used for magnetic shielding to reduce the magnetic induction intensity of fuze circuit,and the rate of change in the magnetic induction intensity of fuze circuit is reduced by utilizing the eddy current effect of high conductivity material.The fuze circuit area is reduced by optimizing the circuit design,and the dot multiplication between the fuze circuit and the magnetic field is reduced through circuit board layout.The finite element model of radio fuze in the strong magnetic field environment of electromagnetic railgun is simulated and analyzed.The results show that the comprehensive electromagnetic protection method is effective.The research results can be used for reference in the design of radio fuze of electromagnetic railgun in the future.

关 键 词：电磁轨道炮 无线电引信 磁感应强度 感应电动势 电磁防护 

分 类 号：TJ434.1[兵器科学与技术—火炮、自动武器与弹药工程]