| 某型机箱的电磁屏蔽仿真分析 |
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| 引用本文： | 刘晨敏,杨眉.某型机箱的电磁屏蔽仿真分析[J].兵工自动化,2016,35(4):81-84. |
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| 作者姓名： | 刘晨敏 杨眉 |
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| 作者单位： | 西南自动化研究所智能制造技术研发中心,四川绵阳,621000;西南自动化研究所智能制造技术研发中心,四川绵阳,621000 |
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| 摘 要： | 为实现良好的电磁屏蔽,利用CST工作室套装TM软件的TLM时域求解器对某型机箱的屏蔽效能进行仿真分析.对比分析2种激励入射方式,对涉及电磁泄漏的常见结构如散热孔阵、接缝等进行探讨,并通过仿真分析了螺钉间距对机箱屏蔽效能的影响.仿真结果表明:入射方式对孔缝处的屏效有显著影响;随螺钉间距减小,其对机箱屏效影响的增速下降.该研究可为机箱的电磁屏蔽设计和机箱结构优化提供参考.
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| 关 键 词： | 电磁屏蔽 机箱 电磁泄漏 屏蔽效能 |
| 收稿时间： | 2015/9/22 0:00:00 |
| 修稿时间： | 2015/10/22 0:00:00 |
Simulation Analysis for Electromagnetic Shielding of Certain Type Chassis |
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| Liu Chenmin.Simulation Analysis for Electromagnetic Shielding of Certain Type Chassis[J].Ordnance Industry Automation,2016,35(4):81-84. |
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| Authors: | Liu Chenmin |
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| Affiliation: | Liu Chenmin;Yang Mei;Research & Development Center of Intelligent Manufacturing Technology,Southwest Automation Research Institute; |
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| Abstract: | To achieve excellent electromagnetic shielding, the shielding effectiveness of a type chassis was simulated and analyzed using TLM solver provided by CST STUDIO SUITETM. By comparing the two kinds of excitation incidence modes, the common structures involving electromagnetic leakage were discussed, such as aperture arrays and seams. Further simulation analysis for the influence of screw spacing on the chassis shielding effectiveness was carried out. The simulation results show that excitation incidence modes have a significant impact on the shielding effectiveness of the apertures and seams. With the decrease of the screw spacing, the growth of its impact on the chassis shielding effectiveness declines. The research results provide a reference for electromagnetic shielding design and structure optimization of chassis. |
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| Keywords: | electromagnetic shielding chassis electromagnetic leakage shielding effectiveness |
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