规则隧道中长列金属物体对电磁波截止频率影响的研究  

Study about Effects of Long Metal Objects on Electromagnetic Wave Cutoff Frequency in Regular Tunnel

作　　者：刘会丽[1] 魏占永[2] 孙继平[3] 

机构地区：[1]河北工业大学理学院,天津300130 [2]河北工业大学电器研究所,天津300130 [3]中国矿业大学北京校区信息工程研究所,北京100083

出　　处：《河北工业大学学报》2004年第5期85-88,共4页Journal of Hebei University of Technology

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.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.

关 键 词：有限元方法 机车 罐笼 支护立柱 截止频率 

分 类 号：TN011.5[电子电信—物理电子学]