Research on shielding effectiveness of field-to-wire coupling model based on time-domain hybrid method

This paper adopts an efficient time-domain hybrid method to solve the complex field-to-wire coupling model. Under the irradiation of high frequency electromagnetic pulse, the transient response of different types and different lengths of cables arranged in parallel in a large engine room model is simulated. By analyzing the electromagnetic compatibility (EMC) inside and outside the model, the three-dimensional current distribution on the model surface and the shielding effectiveness of the model, the results show that the aircraft shell itself has good electromagnetic protection characteristics. In addition, the experimental results by numerical simulation show that improving the electromagnetic protection capability of the fuselage, adopting the shielded cable structure and changing the wiring mode can effectively improve the shielding effectiveness of the inner cable of the fuselage under the irradiation of high-energy electromagnetic pulse.