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研究分析直列式引信实验装置耦合仿真结构特点。应用电磁场成熟通用仿真计算方法,开展三种不同耦合途径引信模型的电磁耦合数值仿真。模拟分析引信腔体内部输入端口、连接线缆及多层电路板结构电磁耦合场的分布特点,对比计算分析带有输入端口、输入线缆及开盖形式引信耦合特性。结合激励入射超宽谱,窄带电磁脉冲时域形式特点,模拟计算引信点火电路板关键节点的电场耦合强度大小,分析研究不同耦合途径直列式引信内部结构强电磁耦合通路。
Research and analysis of in-line fuze experimental device coupling simulation of structural features. The application of electromagnetic field mature universal simulation method, to carry out three different coupling coupling fuze model electromagnetic coupling numerical simulation. Simulation analysis of the fuze cavity internal input port, connecting cables and multi-layer circuit board electromagnetic coupling field distribution characteristics, comparative analysis and calculation with the input port, input cable and open cap form of fuze coupling characteristics. Combined with the characteristics of time domain of ultra-wide-band excitation and narrow-band electromagnetic pulse, the intensity of electric field coupling at key nodes of fuze ignition circuit was simulated and the strong electromagnetic coupling path of internal structure of in-line fuzes with different coupling ways was analyzed.