| 杜一江,郁大照.腐蚀退化情况下航空射频电连接器电磁干扰仿真[J].装备环境工程,2025,22(4):36-43. DU Yijiang,YU Dazhao.Simulation of Electromagnetic Interference due to Corrosion Degradation in Aviation RF Electrical Connectors[J].Equipment Environmental Engineering,2025,22(4):36-43. |
| 腐蚀退化情况下航空射频电连接器电磁干扰仿真 |
| Simulation of Electromagnetic Interference due to Corrosion Degradation in Aviation RF Electrical Connectors |
| 投稿时间：2024-12-26 修订日期：2025-02-18 |
| DOI：10.7643/issn.1672-9242.2025.04.005 |
| 中文关键词: 电连接器 腐蚀退化 电磁干扰 耦合机理 信号传输 仿真 中图分类号:V271.4 文献标志码:A 文章编号:1672-9242(2025)04-0036-08 |
| 英文关键词:electrical connector corrosion degradation electromagnetic interference coupling mechanism signal transmission simulation |
| 基金项目:国家自然科学基金(51345790) |
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| 中文摘要: |
| 目的 探索复杂电磁脉冲干扰下，航空射频电连接器的电磁耦合机理，研究其在腐蚀退化情况下的抗电磁干扰能力。方法 首先对航空射频电连接器的结构及腐蚀退化后电磁耦合机理进行研究，然后分别从频域和时域角度研究射频电连接器在强电磁脉冲作用下的耦合电场情况和抗干扰能力。结果 射频电连接器内部耦合电场模量随着入射电磁脉冲频率的增大而增大，低频干扰时，耦合电场模量在缝隙处取得极大值，高频干扰时，在缝隙处取得极小值。耦合电场分量主要是与入射电磁脉冲极化方向相同的电场分量，耦合电场强度随着腐蚀缝隙的加宽逐渐增大。入射电磁脉冲产生的耦合电压会使传输信号失真，入射电磁脉冲幅值越大，腐蚀缝隙宽度越大，信号的震荡越剧烈，失真度越高，但这种影响具有时限性，随着耦合电场趋于稳定，信号会逐渐趋于平稳。结论 腐蚀退化的航空射频电连接器抗干扰能力显著退化，对于高频干扰更为敏感，干扰初期电磁脉冲对信号传输的影响较大。 |
| 英文摘要: |
| The work aims to explore the electromagnetic coupling mechanism of aviation radio frequency electrical connectors under complex electromagnetic pulse interference, and study their anti-electromagnetic interference ability under corrosion degradation. The structure of aviation radio frequency electrical connector and the electromagnetic coupling mechanism after corrosion degradation were studied, and then the coupling electric field and anti-interference capability of radio frequency electrical connector under strong electromagnetic pulse were investigated under the perspective of frequency domain and time domain respectively. The internal coupling electric field modulus of the radio frequency electrical connector increased with the increase of the incident electromagnetic pulse frequency. Under low-frequency interference, the coupling electric field modulus reached a maximum at the gap, while under high-frequency interference, it reached a minimum at the gap. The coupling electric field component was mainly the electric field component with the same polarization direction as the incident electromagnetic pulse. The coupling electric field intensity gradually increased with the widening of the corrosion gap. The coupling voltage generated by the incident electromagnetic pulse distorted the transmission signal. The larger the amplitude of the incident electromagnetic pulse and the wider the corrosion gap, the more severe the signal oscillation and the higher the distortion degree. However, this effect was time-limited. As the coupling electric field tended to stabilize, the signal would gradually stabilize. The anti-interference capability of corroded and degraded aviation RF electrical connectors has significantly deteriorated, which is more sensitive to high-frequency interference. The electromagnetic pulse during the initial stage of interference has a greater impact on signal transmission. |
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