| Citation: | LIU Jianying, SUI Zheng, ZHANG Qihao, et al. Modeling and impedance analysis of composite material aircraft grounded return network[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(5): 885-893. doi: 10.13700/j.bh.1001-5965.2020.0083(in Chinese)
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To ensure flight safety, a metal current return network is added for composite material aircraft to meet the grounding requirements of the electrical system on board. For the calculation problem of the impedance of the composite material and the metal current return network, a Partial Element Equivalent Circuit (PEEC) method is used based on conductors and dielectrics. The grounded reflux network is modeled including metal bar and composite material skin to calculate the impedance under different parameters and structures as well as the impedance between any nodes, and the influence of some component parameters on the impedance value is analyzed. The simulation calculation results verify the applicability of the algorithm in this paper and the correctness of calculation results, and provide further references for the composite material aircraft grounded reflux network in terms of fault management and electrical protection system design.
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