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工程设计学报  2007, Vol. 14 Issue (5): 409-413    
工程设计理论、方法与技术     
电磁脉冲对计算机机箱的耦合效应
 陈伟华1, 张 厚1, 王 剑1, 杨宇军2
1. 空军工程大学 导弹学院, 陕西 三原  713800;
2. 航天科技集团 771研究所, 陕西 西安 710075
Research on coupling effect of electromagnetic pulse and computer box
 CHEN  Wei-Hua1, ZHANG   Hou1, WANG   Jian1, YANG  Yu-Jun2
1.Missile Institute, Air Force Engineering University, Sanyuan 713800, China; 2.771 Academy, Space Science and Technology Group, Xi'an 710075, China
 全文: PDF(289 KB)   HTML
摘要: 利用时域有限差分法对电磁脉冲与计算机机箱的耦合效应进行研究。建立计算机机箱的物理模型,通过分析机箱内的电磁场随时间的变化曲线和耦合系数随频率的变化曲线,得到电磁脉冲对计算机机箱的耦合规律:电磁脉冲可以通过孔缝进入机箱内部,对机箱内元件的瞬间影响较大;机箱内的耦合能量是先增加后减小;元件的存在使得机箱的屏蔽效能降低,谐振频率下降。研究结果可用于计算机的电磁兼容设计和解决干扰防护问题。
关键词: 计算机机箱时域有限差分法电磁脉冲物理模型    
Abstract: The finite-difference time-domain (FDTD) method is utilized to coupling effect of electromagnetic pulse and computer box. Physical model of computer box is established and through analyzing the changing curves of change of electromagnetic field with time and change of coupling coefficient with frequency, thecoupling regulation of electromagnetic on computer box is obtained. It is as follows: electromagnetic pulse has a great effect on components of computer box through apertures and slots, the coupling energy in the box increases first and then decreases. The existence of components decreases the shielding effectiveness and resonant frequency. The results can be employed to settle electromagnetic compatible design and protection of interference of computer box.
Key words: computer box    FDTD method    electromagnetic pulse    physical model
出版日期: 2007-08-28
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陈伟华
张 厚
王 剑
杨宇军

引用本文:

陈伟华, 张 厚, 王 剑, 杨宇军. 电磁脉冲对计算机机箱的耦合效应[J]. 工程设计学报, 2007, 14(5): 409-413.

CHEN Wei-Hua, ZHANG Hou, WANG Jian, YANG Yu-Jun. Research on coupling effect of electromagnetic pulse and computer box[J]. Chinese Journal of Engineering Design, 2007, 14(5): 409-413.

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https://www.zjujournals.com/gcsjxb/CN/        https://www.zjujournals.com/gcsjxb/CN/Y2007/V14/I5/409

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