复合材料飞机接地回流网络建模与阻抗分析  

Modeling and impedance analysis of composite material aircraft grounded return network

作　　者：刘建英 隋政 张起浩 杨占刚 LIU Jianying;SUI Zheng;ZHANG Qihao;YANG Zhangang(College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津300300

出　　处：《北京航空航天大学学报》2021年第5期885-893,共9页Journal of Beijing University of Aeronautics and Astronautics

基　　金：航空科学基金(20170267002);中央高校基本科研业务费专项资金(3122018D005);天津市高等学校创新团队培养计划(TD13-5071)。

摘　　要：为保证飞行安全,复合材料飞机需增设金属电流回流网络来满足机上电气系统的接地需求。针对复合材料与金属电流回流网络搭接的阻抗计算问题,采用一种基于导体和电介质的部分元等效电路(PEEC)法,对包括金属导轨和复合材料蒙皮的接地回流网络进行了建模,计算接地回流网络在不同参数、结构下的阻抗,实现任意节点之间的阻抗计算,并分析了不同频率下接地回流网络中构件部分参数对阻抗值的影响及不同类别接地点间阻抗值的差异。仿真计算实例验证了所提方法的适用性及计算结果的正确性,可为复合材料飞机接地回流网络在故障管理及电气保护系统设计等方面提供参考。To ensure flight safety,a metal current return network is added for composite material aircraft to meet the grounding requirements of the electrical system on board.For the calculation problem of the impedance of the composite material and the metal current return network,a Partial Element Equivalent Circuit(PEEC)method is used based on conductors and dielectrics.The grounded reflux network is modeled including metal bar and composite material skin to calculate the impedance under different parameters and structures as well as the impedance between any nodes,and the influence of some component parameters on the impedance value is analyzed.The simulation calculation results verify the applicability of the algorithm in this paper and the correctness of calculation results,and provide further references for the composite material aircraft grounded reflux network in terms of fault management and electrical protection system design.

关 键 词：复合材料飞机 接地 电流回流网络 阻抗 部分元等效电路(PEEC)法 

分 类 号：V242.2[航空宇航科学与技术—飞行器设计] TB553[理学—物理]