| 规则隧道中长列金属物体对电磁波截止频率影响的研究 |
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| 引用本文： | 刘会丽,魏占永,孙继平. 规则隧道中长列金属物体对电磁波截止频率影响的研究[J]. 河北工业大学学报, 2004, 33(5): 85-88 |
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| 作者姓名： | 刘会丽 魏占永 孙继平 |
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| 作者单位： | 河北工业大学,理学院,天津,300130;河北工业大学,电器研究所,天津,300130;中国矿业大学,北京校区信息工程研究所,北京,100083 |
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| 摘 要： | 利用有限元方法系统地研究了机车、罐笼、金属支护立柱等长列金属物体对井下规则隧道中电磁波截止频率的影响，可知长列金属物体的存在使TE波模截止频率降低，而使TM波模截止频率升高．相比较而言，罐笼对电磁波截止频率影响最大，支护立柱影响最小，机车对电磁波影响的范围最大。
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| 关 键 词： | 有限元方法 机车 罐笼 支护立柱 截止频率 |
| 文章编号： | 1007-2373(2004)05-0085-04 |
| 修稿时间： | 2003-10-15 |
Study about Effects of Long Metal Objects on Electromagnetic Wave Cutoff Frequency in Regular Tunnel |
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| LIU Hui-li,WEI Zhan-yong,SUN Ji-pingSchool of Theory,Hebei University of Technology,Tianjin,China, Electric Apparatus Institute,Hebei University of Technology,Tianjin ,China, Research Institute of Information Engineering,Beijing Campus,China University of Mining and Technology,Beijing ,China. Study about Effects of Long Metal Objects on Electromagnetic Wave Cutoff Frequency in Regular Tunnel[J]. Journal of Hebei University of Technology, 2004, 33(5): 85-88 |
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| Authors: | LIU Hui-li WEI Zhan-yong SUN Ji-pingSchool of Theory Hebei University of Technology Tianjin China Electric Apparatus Institute Hebei University of Technology Tianjin China Research Institute of Information Engineering Beijing Campus China University of Mining Technology Beijing China |
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| Affiliation: | LIU Hui-li,WEI Zhan-yong,SUN Ji-pingSchool of Theory,Hebei University of Technology,Tianjin300130,China, Electric Apparatus Institute,Hebei University of Technology,Tianjin 300130,China, Research Institute of Information Engineering,Beijing Campus,China University of Mining and Technology,Beijing 100083,China |
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| Abstract: | Using finite-element method the effects of long objects, such as cage, train and metal pit prop, on electromagnetic wave cutoff frequency is researched systematically in regular tunnels, and it is shown that the long metal objects lower TE wave cutoff frequency and raise TM wave cutoff frequency. Comparatively, the effect of cage is more than that of pit prop. |
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| Keywords: | finite-element method train cage pit prop cutoff frequency |
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