为探索强电磁脉冲对某型火箭弹发射性能的危害,分析了强电磁脉冲传播特性和耦合机理,建立该型火箭弹发动机模型并进行电磁仿真计算,得到电磁耦合效应规律,计算了点火线路的感应电流并进行实验验证,最后对电磁安全性进行了分析评估。研究结果表明,强电磁脉冲对火箭弹发射性能构成一定危害,其电磁安全性评估可以采用最大允许电磁环境为表征指标。

In order to explore the hazards of high power electromagnetic pulse to rocket launch performance, the propagation characteristics and coupling mechanism of high power electromagnetic pulse are analyzed. The engine model of the rocket is established and the electromagnetic simulation calculation is carried out. The electromagnetic coupling effect law is obtained, and the induced current of ignition circuit is calculated and verified by experiments. Finally, the electromagnetic safety of the rocket is analyzed and evaluated. The results show that the high power electromagnetic pulse is harmful to the launch performance of the rocket, and the maximum allowable electromagnetic environment can be used as the evaluation index for its electromagnetic safety.