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闪电与飞机相互作用,在机载电缆束上产生电压和电流,这些电压和电流可能会导致关键电子设备损坏或出现故障,因此危害飞行安全。随着飞机材料和机载关键电子电气设备的不断改进和提高,航空工业界越来越关注飞机的闪电电磁环境对机载设备及飞机系统的影响。EMA3D可全面分析飞机遭遇闪电袭击后,其内外部电磁场分布情况,估算闪电对飞机里的线缆系统的间接效应。主要论述某机载设备的闪电电磁环境和EMA3D电磁仿真软件的功能,最后应用此软件分析飞机某机载设备周围的电场和磁场以及其连接线缆上的感应电流。
Lightning interacts with the aircraft to create voltage and current on the airborne cable harness, which can cause damage or malfunction of critical electronic equipment and thus jeopardize flight safety. With the continuous improvement and improvement of aircraft materials and key airborne electrical and electronic equipment, the aviation industry is increasingly concerned about the impact of aircraft lightning electromagnetic environment on airborne equipment and aircraft systems. The EMA3D provides a comprehensive analysis of the electromagnetic field distribution inside and outside the aircraft after lightning strikes and estimates the indirect effect of lightning on the cable system in the aircraft. Mainly discusses the lightning electromagnetic environment of an airborne equipment and the function of EMA3D electromagnetic simulation software. Finally, this software is used to analyze the electric and magnetic fields around an airborne equipment and the induced current on the connecting cable.