屏蔽层接地方式对飞机电缆电磁屏蔽效能的影响研究与优化设计  

Influence of Shield Grounding Mode on Aircraft Cable Electromagnetic shield and Its Optimization

作　　者：赵科伟 王建飞 凌敏[2] 曹坤 辜陈兴 刘良 ZHAO Kewei;WANG Jianfei;LING Min;CAO Kun;GU Chenxing;LIU Liang(Sichuan Tengdun Technology Co.,Ltd,Chengdu 610037,China;Chengdu Aeronautic Polytechnic,Chengdu 610100,China)

机构地区：[1]四川腾盾科技有限公司,咸都610037 [2]成都航空职业技术学院,成都610100

出　　处：《成都航空职业技术学院学报》2023年第1期54-58,共5页Journal of Chengdu Aeronautic Polytechnic

基　　金：四川省科技计划重点研发项目(2020YFN0027);阿坝州科技计划重点研发项目(R22YYJSYJ0001)。

摘　　要：基于航空电缆上可能因为电磁耦合效应而形成的大量电磁辐射危害无人机上信息传递的品质,甚至危及无人机飞行安全的现象,根据屏蔽层电磁干扰的计算模型,用CST分析了不同接地方法对电磁屏蔽的影响,重新设计了某型无人机的机载电缆,对某型无人机目前机载电缆进行了屏蔽层360度搭接的改装,然后对改装屏蔽层360度搭接前后电缆屏蔽效能进行了分析,提高了该无人机在高频时的电磁屏蔽效能,为之后机型的电磁屏蔽设计提供一定的参考。A large amount of electromagnetic radiation may be formed on the cable due to the electromagnetic coupling induction,which endangers the quality of information transmission on the unmanned aerial vehicle(UAV),and even its flight safety.According to the electromagnetic interference calculation model of the shielding layer,this paper uses CST to analyze the influence of different grounding methods on the electromagnetic shield,redesigns the cable of a certain UA\^retrofits the current cable of a certain UAV with 360-degree overlap of the shielding layer,and then analyzes the shield effectiveness of the cable before and after 360・degree overlap of the modified shielding layer.This improves the electromagnetic shield effectiveness of this UAV at high frequency,and provides some reference for the electromagnetic shield design of later models.

关 键 词：无人机 无人机电缆 电磁屏蔽 屏蔽层接地方式 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]