[1]李长生,张合,查冰婷,等.引信无线供能系统电磁耦合结构外围金属介质涡流损耗分析[J].南京理工大学学报(自然科学版),2011,(03):347-351.
 LI Chang-sheng,ZHANG He,ZHA Bing-ting.Eddy Current Loss Analysis of Exterior Metal Dielectric for Electromagnetic Coupling Structure in Fuze Wireless Power Supply System[J].Journal of Nanjing University of Science and Technology,2011,(03):347-351.
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引信无线供能系统电磁耦合结构外围金属介质涡流损耗分析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2011年03期
页码:
347-351
栏目:
出版日期:
2011-06-30

文章信息/Info

Title:
Eddy Current Loss Analysis of Exterior Metal Dielectric for Electromagnetic Coupling Structure in Fuze Wireless Power Supply System
作者:
李长生;张合;查冰婷;
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):
LI Chang-shengZHANG HeZHA Bing-ting
ZNDY of Ministerial Key Laboratory,NUST,Nanjing 210094,China
关键词:
引信 无线供能 电磁耦合 金属介质 涡流损耗 磁屏蔽
Keywords:
fuzes wireless power supply electromagnetic coupling metal dielectric eddy currents loss magnetic shields
分类号:
TJ430.3
摘要:
针对引信体外无线供能系统中初、次级线圈被金属介质包裹的耦合结构,为降低金属管中存在的严重涡流损耗,建立了金属介质中涡流损耗的数学模型。通过求解麦克斯韦方程组,推导了涡流损耗的解析表达式。采用ANSYS仿真软件分析、对比磁屏蔽和开槽两方案减少系统涡流损耗的效果。实验与仿真结果表明,通过在初级线圈外包裹坡莫合金薄层可将外围磁路束缚在该薄层内,从而有效减少系统涡流损耗,其效果优于金属管开槽方案。
Abstract:
According to the coupling structure of primary and secondary coil enwrapped by metal dielectric in fuze wireless power supply system,a mathematical model of eddy current loss in metal dielectric is established to decrease the serious eddy current loss in metal tube.The analytical expressions of eddy current loss is deduced by solving Maxwell ’ s equations.ANSYS simulation software is used to analyze and compare the effects of magnetic shielding method and slotting method to reduce eddy current loss.Experiment and simulation results show that the exterior magnetic field can be bound in the magnetic shielding layer by enwrapping a thin permalloy layer around the primary coil,and the eddy current loss is effectively reduced.This method is better than slotting in the metal tube.

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备注/Memo

备注/Memo:
作者简介:李长生( 1984 - ) ,男,博士生,主要研究方向: 引信与武器系统信息交联技术,E-mail: lichangsheng1984 @163. com; 张合( 1957 - ) ,男,教授,博士生导师,主要研究方向: 引信探测技术,E-mail: hezhangz@ mail. njust. edu. cn。
更新日期/Last Update: 2012-06-30