金属线栅笼代替空心导体圆柱对辐射波模拟器电磁特性的影响

杜立航; 高成; 张琪; 陈海林; 殷勤

doi:10.11884/HPLPB201931.180303

金属线栅笼代替空心导体圆柱对辐射波模拟器电磁特性的影响

doi: 10.11884/HPLPB201931.180303

陆军工程大学电磁环境效应与光电工程国家级重点实验室, 南京 210007

基金项目:

国防科技基金项目 3602039

装备预研基金项目 614220601011704

详细信息

作者简介:
杜立航(1981—), 男，博士研究生，从事武器装备电磁环境效应与防护技术研究；dulihang@163.com

通讯作者:
张琪(1987—), 男，讲师，从事雷电防护研究；emczhq@163.com

中图分类号: TN823
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出版历程
- 收稿日期: 2018-11-02
- 修回日期: 2019-01-10
- 刊出日期: 2019-07-15

Electromagnetic characteristics influence caused by wire cage replacing hollow conductor cylinder in hybrid simulator

National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, Army Engineering University of PLA, Nanjing 210007, China

摘要

摘要: 主要关注空心导体圆柱的等效替代品-圆柱线栅笼的电磁特性，分别基于保角变换和等效电磁场理论进行了等效半径的推导，在此基础上运用电磁仿真软件CST仿真分析了金属线栅的疏密和粗细程度对测试区电场波形的上升沿、脉宽和峰值的影响，并且对比了圆柱线栅笼和空心导体圆柱两种结构的电场分布。分析结果显示，双锥笼型结构完全能够等效代替空心导体圆柱，且进一步验证了等效半径理论的正确性。
- 混合模拟器 /
- 金属线栅 /
- 等效半径 /
- 电场分布
Abstract: The focus of this paper is the electromagnetic characteristics of cylindrical wire grid cage, an equivalent substitute for a hollow conductor cylinder. First of all, the equivalent radius is derived based on the conformal transformation and the equivalent electromagnetic field theory, respectively. Then, the electromagnetic simulation software CST is used to simulate the influence of the density and thickness of the metal wire grid on the risetime, pulse width and peak value of the electric field in the test area. Further, the electric field distributions of the cylindrical wire cage and the hollow conductor cylinder are compared. The results show that the cage structure can completely replace the hollow conductor cylinder and verify the rationality of the equivalent radius theory.
- hybrid simulator /
- metal wire grid /
- equivalent radius /
- electric field distribution

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图 1 混合模拟器结构图

Figure 1. Configuration of hybrid simulator

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图 2 圆柱线栅笼结构图

Figure 2. Circular cylindrical wire cage

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图 3 线栅疏密程度对电场波形的影响

Figure 3. Influence of sparseness on waveform of electric field

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图 4 线栅粗细程度对电场波形的影响

Figure 4. Influence of thickness on waveform of electric field

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图 5 x=0平面的电场分布

Figure 5. Electric field distribution in the x=0 plane

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图 6 y=5 m平面的电场分布

Figure 6. Electric field distribution in the y=5 m plane

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图 7 z =6 m平面的电场分布

Figure 7. Electric field distribution in the z=6 m plane

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表 1 a=0.01 m时N不同取值对应的圆柱线栅笼半径

Table 1. Radius of cylindrical grid cage corresponding to different values ofN when a=0.01 m

N	A/m
6	1.755
12	1.213
18	1.106
24	1.064

下载: 导出CSV

表 2 N =18时a不同取值对应的圆柱线栅笼半径

Table 2. Radius of cylindrical grid cage corresponding to different values ofa when N=18

a/m	A/m
0.001	1.267
0.002	1.216
0.005	1.152
0.01	1.106

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表 3 近场波形参数

Table 3. Waveform parameters of near field

number of wires N	electric field peak E_p/(kV·m^-1)	Risetime t_r/ns	half width t_hw/ns
6	76.073	1.079	9.301
12	70.380	0.706	15.438
18	67.682	0.658	15.452
24	66.794	0.649	15.464
hollow conductor cylinder	66.020	0.631	15.468

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表 4 远场波形参数

Table 4. Waveform parameters of far field

number of wires N	electric field peak E_p/(kV·m^-1)	Risetime t_r/ns	half width t_hw/ns
6	26.345	1.027	7.07
12	26.482	1.056	6.857
18	26.596	1.058	6.853
24	26.680	1.055	6.854
hollow conductor cylinder	26.743	1.053	6.851

下载: 导出CSV

参考文献(12)

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