| 基于FEM的惯导系统电磁屏蔽效能仿真分析 |
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| 引用本文： | 李传斌,曹聚亮,庹洲慧.基于FEM的惯导系统电磁屏蔽效能仿真分析[J].导航与控制,2009(3):37-40. |
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| 作者姓名： | 李传斌 曹聚亮 庹洲慧 |
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| 作者单位： | 国防科技大学机电工程与自动化学院;国防科技大学机电工程与自动化学院;国防科技大学机电工程与自动化学院 |
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| 摘 要： | 机箱电磁屏蔽效能的优劣影响惯导系统的电磁兼容性能，而孔缝是造成电磁泄露的重要原因。本文运用FEM分析计算软件Ansoft HFSS，分析了缝隙的形状和不同组合对机箱屏蔽效能和谐振频率的影响，提出了改进措施提高屏蔽效能。并对惯导系统电子设备机箱的设计进行了比较，为选择屏蔽效能较好的设计提供了依据。
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| 关 键 词： | 屏蔽效能 有限元方法 惯导系统 孔缝 |
Simulation of EM Shielding Effectiveness for INS Based on FEM |
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| LI Chuan-bin,CAO Ju-liang and TUO Zhou-hui.Simulation of EM Shielding Effectiveness for INS Based on FEM[J].Navigation and Control,2009(3):37-40. |
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| Authors: | LI Chuan-bin CAO Ju-liang and TUO Zhou-hui |
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| Institution: | College of Mechatronics Engineering and Automation, National University of Defense Technology;College of Mechatronics Engineering and Automation, National University of Defense Technology;College of Mechatronics Engineering and Automation, National University of Defense Technology |
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| Abstract: | Electromagnetic shielding effectiveness of enclosure influences the EMC performance of INS, and aperture is an important reason for the electromagnetic leakage. In this paper, Ansoft HFSS, a FEM computing software is used to analyze the influence which different shapes and arrangements of apertures bring to shielding effectiveness and resonant frequency. Meanwhile, some improving counter measures are proposed. By comparing different schemes of INS electric equipment, the paper provides guide line for designing of shielding effectiveness. |
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| Keywords: | shielding effectiveness FEM method inertial navigation system apertures |
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