Numerical method of electromagnetic pulse response of conductor with complex load北大核心CSCD |
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引用本文: | 王旭桐,程引会,马良,王文兵,秦锋,聂鑫.Numerical method of electromagnetic pulse response of conductor with complex load北大核心CSCD[J].中国舰船研究,2023(4):43-49. |
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作者姓名: | 王旭桐 程引会 马良 王文兵 秦锋 聂鑫 |
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作者单位: | 1.西北核技术研究所710024;2.强脉冲辐射环境模拟与效应国家重点实验室710024; |
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基金项目: | 国家重点实验室专项基金资助项目(SKLIPR1803Z)。 |
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摘 要: | Objectives]Electromagnetic pulse can seriously affect and even destroy naval shipborne electronic information systems, weapons, equipment and so on. Due to the complexity of the antenna port load circuit, it is necessary to formulate a numerical method which can easily obtain the antenna load current. Methods]The induced current of the terminal is obtained on the basis of the finite-difference time-domain (FDTD) and Holland model. According to the Thévenin equivalent circuit, the conductor is equivalent to the voltage source to realize decoupling between the conductor and load end, and the load circuit is solved using Simulink software.Results]Compared with the traditional terminal model, this method is simple and feasible for high-order circuit processing. The effectiveness of the model is verified using non-linear elements and parallel capacitors and resistors as the load respectively. The results show that the calculation results of this method are consistent with those of the traditional methods. Finally, the antenna of the end-connected protect- or is calculated. The results show that the lead inductance caused by the installation of the protector is an important factor affecting the protection performance.Conclusions]The method proposed in this paper can greatly reduce the simulation complexity of the coupling current of an antenna with a complex load, giving it useful reference value for the field of ship electromagnetic pulse protection design. © 2023 Editorial Department of Chinese Journal of Ship Research. All Rights Reserved.
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关 键 词: | 时域有限差分法 细线方程 等效电路 电磁脉冲 防护器 |
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