屏蔽室接地位置不同对其屏蔽效能的影响研究

王建宝; 周璧华; 杨波

屏蔽室接地位置不同对其屏蔽效能的影响研究

解放军理工大学工程兵工程学院, 江苏南京 210007

详细信息

作者简介:
王建宝(1983-),男,山东人,解放军理工大学在读博士生,主要研究方向为计算电磁学和雷电电磁环境防护;周璧华(1940-),女,江苏人,解放军理工大学教授,博士生导师,主要研究方向为高功率电磁环境防护;杨波(1982-),男,四川人,解放军理工大学在读博士生,主要研究方向为计算电磁学和雷电电磁环境防护。

通信作者:
王建宝 E-mail:yyuan5138@gmail.com

中图分类号: O441
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出版历程
- 收稿日期: 2011-02-01
- 网络出版日期: 2020-12-30
- 发布日期: 2012-02-29

Influence of grounding locations on shielding effectiveness of shielded room

Engineering Institute of Engineering Corps, PLA Univesity of science and Technology, Nanjing Jiangsu 210007, China

摘要

摘要: 为分析屏蔽室不同接地位置对其屏蔽效能的影响,应用并行时域有限差分算法,对雷电电磁脉冲和高空核电磁脉冲与开孔屏蔽室的耦合问题进行了数值模拟。计算了屏蔽室在两种接地位置下(前点接地、后点接地)内部的耦合电场,并进行了局部实验验证。研究结果表明:接地点与屏蔽室开孔位置间的距离远,屏蔽效能高;距离近则屏蔽效能低。
- 并行时域有限差分算法 /
- 屏蔽效能 /
- 接地位置 /
- 高功率电磁环境
Abstract: In order to analyze the influence of grounding locations on the shielding effectiveness (SE) of shielded room, numerical simulation is done by applying parallel time-domain finite-difference (FDTD) method on the coupling problems between shielded room and two high power electromagnetic environments,that are lightning electromagnetic pulse (LEMP) and altitude electromagnetic pulse (HEMP), respectively. Inner coupled electromagnetic (EM) fields are calculated when the shielded room is with different grounding locations. The results indicate that the farther the distance between the grounding location and the aperture, the better the SE of shielded room.
- parallel time-domain finite-difference method /
- shielding effectiveness /
- grounding locations /
- high power electromagnetic environment

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参考文献(14)

KODALI V P. Engineering Electromagnetic Compatibility:Principles, Measurements, Technologies, and Computer Models[M]. New York:Wiley Publishing, 1996.

周璧华, 陈彬, 石立华. 电磁脉冲及其工程防护[M]. 北京:国防工业出版社, 2003. ZHOU Bihua, CHEN Bin, SHI Lihua. EMP and EMP Protection[M]. Beijing:National Defence Industry Press, 2003. (in Chinese)

PAUL C R. Introduction to Electromagnetic Compatibility[M]. New Jersey:John Wiley & Sons, 2006.

MA K P, LI M, DREWNIAK J L, et al. Comparison of FDTD algorithms for subcellular modeling of slots in shielding enclosures[J]. IEEE Trans. Electromagn. Compat., 1997, 39(2):147-155.

YANG C S, ZHOU B H. Calculation methods of electromagnetic fields very close to lightning[J]. IEEE Trans. Electromagn. Compat., 2004, 46(1):133-141.

FENG C, SHEN Z X. A hybrid FD-MoM technique for predicting shielding effectiveness of metallic enclosures with apertures[J]. IEEE Trans. Electromagn. Compat., 2005, 47(3):456-462.

LI X J, ZHOU B H, YU T B. Coupled Field Inside Shielding Enclosure With an Aperture Due to Nearby Lightning[J]. IEEE Trans. Electromagn. Compat., 2007, 49(1):133-142.

余文华, 苏涛, MITTRA R, 等. 并行时域有限差分[M]. 北京:中国传媒大学出版社, 2005. YU Wenha, SU Tao, MITTRA R, et al. Parallel FDTD[M]. Beijing:Communication University of China Press, 2005. (in Chinese)

WANG H L, XUE Z H, YANG S M, et al. Near field scattering analysis with parallel FDTD algorithm[C]//IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communication Proceedings. 2005.

Electromagnetic compatibility (EMC) -Part 2-13 Environment-High-power electromagnetic (HPEM) environments-Radiated and conducted. IEC 61000-2-13[S]. 1st ed. 2005.

YI Y, CHEN B, FANG D G. A new 2-D FDTD method applied to scattering by infinite objects with oblique incidence[J]. IEEE Trans. Electromagn. Compat., 2005, 47(4):756-762.

石丹, 沈远茂, 高攸刚. 有孔屏蔽腔屏蔽效能的高次模分析[J]. 电波科学学报, 2009, 24(3):510-513. SHI Dan, SHEN Yuanmao, GAO Yougang. High-order modes analysis on shielding effectiveness of enclosure with off-center aperture[J]. Chinese Journal of Radio Science, 2009, 24(3):510-513. (in Chinese)

汪柳平, 高攸纲. 有孔矩形腔的屏蔽效能及其对谐振抑制研究[J]. 电波科学学报, 2008, 23(3):560-564. WANG Liuping, GAO Yougang. Analysis of shielding effectiveness for rectangular cavity with apertures and resonance suppression[J]. Chinese Journal of Radio Science, 2008, 23(3):560-564. (in Chinese)

周璧华, 陈彬, 高成,等. 钢筋网及钢筋混凝土电磁脉冲屏蔽效能研究[J]. 电波科学学报, 2000, 15(3):251-259. ZHOU Bihua, CHEN Bin, GAO Cheng, et al. Study on EMP shielding effectiveness of wire-mesh reinforcement and reinforced-concrete[J]. Chinese Journal of Radio Science, 2000, 15(3):251-259. (in Chinese)