航空发动机电子控制器的高强辐射场干扰及防护  

HIRF interference research and protection of aircraft engine electronic controller

作　　者：肖国松[2] 刘家豪 马振洋[2] 史春蕾 Xiao Guosong;Liu Jiahao;Ma Zhenyang;Shi Chunlei(College of Safety Science and Engineering,Civil Aviation University of China,Tianjin 300300,China;Key Laboratory of Civil Aircraft Airworthiness Technology,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学安全科学与工程学院,天津300300 [2]中国民航大学民航航空器适航审定技术重点实验室,天津300300

出　　处：《强激光与粒子束》2024年第4期46-55,共10页High Power Laser and Particle Beams

基　　金：天津市科技局自然基金多元基金项目重点项目(21JCZDJC00860)。

摘　　要：针对航空发动机电子控制器(EEC)易受高强辐射场(HIRF)干扰问题,以ZF-M600型EEC为研究对象,通过三维电磁仿真软件CST对EEC建模并进行平面波辐照仿真,模拟HIRF对EEC的干扰效应,仿真结果表明,HIRF可以通过孔缝耦合进入EEC内部并在腔体内部产生谐振,谐振频率处电场强度显著增加。依据RTCA DO-160G在400 MHz~4 GHz开展EEC辐射敏感度试验,试验结果表明:EEC失效频点为2.40 GHz和3.48 GHz,敏感模块为模拟量输入输出模块,敏感现象为模拟量数据丢失。EEC失效频点与谐振频率接近,说明EEC失效与腔体谐振有关,在EEC内部贴装吸波材料并进行仿真,分析吸波材料的放置方式和厚度对EEC谐振电磁干扰强度的影响,仿真结果表明,贴装吸波材料可以有效抑制谐振电磁干扰。To solve the problem that the aviation Engine Electronic Controller(EEC)is easily disturbed by high-intensity radiation field(HIRF)interference,the plane wave irradiation simulation is performed to simulate the interference effect of HIRF on the EEC through the software CST for the modeling of the EEC.The simulation results show that HIRF can be coupled into the EEC and the electric field strength increases significantly at the resonance frequency.Conducting EEC radiated susceptibility tests at 400 MHz-4 GHz,the test results show that the EEC failure frequency points are 2.40 GHz and 3.84 GHz,the susceptive module is the analog input and output module,The EEC failure frequency is close to the resonance frequency,and the EEC failure is related to the cavity resonance.The wave-absorbing material is mounted inside the EEC and simulation is carried out,and the simulation results show that the wave-absorbing material can effectively suppress the resonance electromagnetic interference,and the results of the study can provide a theoretical basis and reference for the HIRF protection of the EEC.

关 键 词：发动机电子控制器 高强辐射场 辐射敏感度 谐振频率 电磁防护 

分 类 号：V216.5[航空宇航科学与技术—航空宇航推进理论与工程]