编织增强型电磁防护材料的等效模型与屏蔽性能研究

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• 英文论文题名：Research on Equivalent Model and Shielding Properties of Braid-reinforced Electromagnetic Protection Materials
• 论文作者：曲兆明 ; 王庆国 ; 王小亮 ; 白丽云 ; 王妍
• 英文论文作者：QU Zhao-ming ; WANG Qing-guo ; WANG Xiao-liang ; BAI Li-yun ; WANG Yan ; Institute of Electrostatic & Electromagnetic Protection ; Ordnance Engineering College
• 年：2015
• 作者机构：军械工程学院静电与电磁防护研究所;
• 论文关键词：编织 ; 电磁防护材料 ; 等效模型 ; 有效介质理论 ; 屏蔽效能
• 英文论文关键词：Braid ; electromagnetic protection materials ; equivalent model ; effective media theory ; shielding effectiveness
• 会议召开时间：2015-08-12
• 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
• 语种：中文
• 分类号：TB34;O441
• 学会代码：WLJD
• 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
• 会议地点：中国河北石家庄
• 主办单位：中国物理学会静电专业委员会
• 学会名称：中国物理学会静电专业委员会
• 页数：4
• 文件大小：789k
• 原文格式：D
• 会议级别：全国

摘要

为实现编织增强型电磁防护材料的屏蔽效能理论预测及其优化设计,构建了复合材料的等效模型,该模型将编织型复合材料剖分成多层单纱定向周期排列的各向异性介质的叠加,并基于有效介质理论给出了各层介质等效电磁参数的计算公式,仿真计算验证了等效模型预测材料屏蔽效能的可行性。分析了编织增强型电磁防护材料屏蔽性能的影响因素,仿真计算结果表明:复合材料屏蔽效能随编织体单纱电导率增大而增大,且在电导率达到特定值时屏蔽效能变化不再明显;编织体网孔尺寸越小,材料屏蔽效能越大。论文提出的编织增强型电磁防护材料等效模型构建方法对于高效屏蔽复合材料的优化设计具有一定理论价值和指导意义。
The equivalent model of braid-reinforced electromagnetic protection materials(BREPM)was presented for the prediction of shielding effectiveness(SE)and optimization of BREPM.The equivalent model subdivides the BREPM into multilayer anisotropic media with arrayed periodically,and the effective electromagnetic parameters of each layer media can be calculated based on effective media theory.The feasibility of proposed equivalent model for predicting the shielding properties was verified by simulation.The influencing factors of SE of BREPM were analyzed and the simulation results show that the SE increases with the increase of conductivity of braided fabric.When the conductivity reaches certain values,the SE will not change obviously.The SE becomes bigger when the mesh size of fabric is smaller.The proposed equivalent model of BREPM has certain theoretical value and guiding significance to the optimization of high efficiency shielding composites.

引文

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