航空发动机电子控制器的高强辐射场干扰及防护

肖国松; 刘家豪; 马振洋; 史春蕾

doi:10.11884/HPLPB202436.230320

航空发动机电子控制器的高强辐射场干扰及防护

doi: 10.11884/HPLPB202436.230320

肖国松^2,,
刘家豪^{1, 2,},
马振洋^2, ,,
史春蕾^{1, 2}

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

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

详细信息

作者简介:
肖国松，xiaoguosong@sina.cn

通讯作者:
马振洋，zyma@cauc.edu.cn。

中图分类号: V216.5
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- 文章访问数: 352
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- PDF下载量: 78
- 被引次数: 0
出版历程
- 收稿日期: 2023-09-18
- 修回日期: 2023-12-13
- 录用日期: 2023-12-29
- 网络出版日期: 2023-12-28
- 刊出日期: 2024-02-29

HIRF interference research and protection of aircraft engine electronic controller

Xiao Guosong^2
,,
Liu Jiahao^{1, 2
,},
Ma Zhenyang^{2
, ,},
Shi Chunlei^{1, 2}

1.
College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China
2.
Key Laboratory of Civil Aircraft Airworthiness Technology, Civil Aviation University of China, Tianjin 300300, China

摘要

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。
- 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
Abstract: 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.
- engine electronic controller /
- high-intensity radiation field /
- radiation sensitivity /
- resonant frequency /
- electromagnetic protection

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图 1 发动机电子控制器

Figure 1. Aircraft Electronic Engine Controller

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图 2 EEC仿真模型

Figure 2. Simulation model of the EEC

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图 3 平面波辐照仿真

Figure 3. Plane wave irradiation simulation

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图 4 EEC平面波辐照仿真结果

Figure 4. Plane wave irradiation simulation results of the EEC

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图 5 试验环境及设备布置

Figure 5. Radiation sensitivity test environment

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图 6 EEC辐射敏感度试验原理图

Figure 6. Schematic diagram of EEC radiation sensitivity

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图 7 EEC试验前调试

Figure 7. Debugging before EEC test

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图 8 模拟量信号试验结果

Figure 8. Analog output module test results

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图 9 吸波材料的贴装位置

Figure 9. Placement position of absorbing material

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图 10 吸波材料防护效果

Figure 10. Protective effect of the absorbing material

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表 1 EEC外壳结构及材料参数

Table 1. Shell structure and material of the EEC

structure	material	electrical conductivity/(s·m⁻¹)	relative permeability/(h·m⁻¹)	relative permittivity
housings	aluminium	3.56	1	1.5
power switch	aluminium	3.56	1	1.5
aviation plug housings	aluminum alloy	3.45	1	1.0
aviation plug pins	brass	1.59	1	1.0
status indicator	air	−	−	1.0
screws	iron	1.04	1	10.0
copper of pcbs	copper	5.80	1	1.5
medium of pcbs	FR4	5.96	1	5.0

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表 2 测试设备型号及功能

Table 2. Test equipment type

test equipment	model	function
oscilloscope	DSO1022A	monitor digital output
power analyzer	PA2203A	monitor analogue output
computer	G510	monitor serial output
signal generator	UTG2062A	provide input signal
power supply	E3631A	power supply
impedance stabilized network	DN-LISN160	prevent interference

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表 3 COM1数据输出协议

Table 3. COM1 data output protocol

statement structure	output data	byte	offset
statement header	0×48	1	0
statement header	0×59	1	1
statement header	0×53	1	2
statement id number	0×02	1	3
sentence body	cycle count	2	4
checksum	—	4	32

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表 4 F类设备辐射敏感度试验场强

Table 4. Class F equipment radiation sensitivity test field

frequency/GHz	field strength/(V·m⁻¹)	sampling rate	sampling interval/MHz	stirring speed/(r·min⁻¹)
0.4~1.0	350	60	10	4
1.0~2.0	1000	100	10	2
2.0~4.0	1500	200	10	2

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表 5 EEC谐振频率与失效频点

Table 5. EEC resonant frequency and failure frequency

mode	calculated resonant resonant frequency/GHz	simulation results/GHz	cutoff frequency/GHz
f₁₁₀	2.72	2.62	2.40
f₀₂₁	3.68	3.55	3.48

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