Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (4): 991-999.doi: 10.12305/j.issn.1001-506X.2023.04.07

• Electronic Technology • Previous Articles    

Analysis of aircraft lightning coupling mechanism and shielding effectiveness factors

Zhangang YANG, Qihao ZHANG, Zhongshu KE, Xudong SHI   

  1. School of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China
  • Received:2021-12-31 Online:2023-03-29 Published:2023-03-28
  • Contact: Xudong SHI

Abstract:

Lightning indirect effect protection of composite aircraft is one of the difficulties needed to be solved urgently for modern aircraft. The different electromagnetic coupling mechanism of lightning on aircraft is analyzed by creating an equivalent circuit. And the shielding performance and influencing factors of metal mesh laid on the skin of composite aircraft are analyzed. By comparing with the actual situation, the effectiveness of the proposed metal mesh volume calculation method is verified. The results of theoretical analysis and simulation calculations show that laying metal mesh on the surface of composite skin can provide effective lightning protection for aircraft, and the metal mesh parameters have a great impact on the protection performance. In addition, the proposed calculation method of metal mesh volume and induced current can provide a reference for further optimizing lightning indirect effect shielding performance of composite aircraft.

Key words: composite material aircraft, lightning indirect effects, electromagnetic shielding, lightning protection, metal mesh

CLC Number: 

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