摘要
提出了煤矿井下高频连续波电磁骚扰工程计算模型。系统分析了煤矿井下高频连续波电磁波能量损失机制,将巷道内电磁波的计算分为3个阶段:准自由空间传播阶段、高阶模式转换及稳定阶段、主模传输阶段。结合解析法和有限元法,分别给出了这3个阶段的电场场强和传播衰减的计算公式。三维有限元计算结果和实地测量均证明了计算模型的有效性和简便性。
Engineering calculation model of high frequency electromagnetic disturbance in mine tunnel was proposed.With a systematic analysis of high frequency electromagnetic transmission mechanism in coal mine,the energy loss was divided into three stages：qusi-free space transmission stage,high-order modes conversion and stable stage,main transmission mode stage.By integrating with analytic method and finite element method,the calculation formulas of electrical field strength and propagation loss were given respectively.Three-dimensional finite element simulation and field measurement both proved the validity and convenience of the model.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2012年第12期2118-2122,共5页
Journal of China Coal Society
基金
国家自然科学基金重点资助项目(51134024)
国家高技术研究发展计划(863)资助项目(2012AA062203)
关键词
煤矿井下
电磁骚扰
计算模型
coal mine tunnel
electromagnetic disturbance
calculation model
