Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Analysis of Indirect Lightning Impact on Aircraft Shielded Cable Structure in accordance with RTCA DO-160G Sec. 22

항공기용 차폐 케이블의 구조에 따른 RTCA DO-160G Sec. 22 간접낙뢰 영향성 분석

  • Sung-Yeon Kim (Dept. of Electronic Engineering, Gyeongsang National University) ;
  • Tae-Hyeon Kim (Dept. of Electronic Engineering, Gyeongsang National University) ;
  • Min-Seong Kim (Dept. of Electronic Engineering, Gyeongsang National University) ;
  • Wang-Sang Lee (Dept. of Electronic Engineering, Gyeongsang National University)
  • 김성연 (경상국립대학교 전자공학과) ;
  • 김태현 (경상국립대학교 전자공학과) ;
  • 김민성 (경상국립대학교 전자공학과) ;
  • 이왕상 (경상국립대학교 전자공학과)
  • Received : 2023.09.14
  • Accepted : 2023.11.17
  • Published : 2023.12.31
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Abstract

In this paper, we analyze the influence of indirect lightning strikes based on the structure of shielded cables used in an aircraft and propose a cable structure to enhance shielding effectiveness. Cables in an aircraft account for the largest proportion among components and play a crucial role in connecting aircraft frames and electronic devices; thus, making them highly influential. In particular, indirect lightning strike noise can lead to malfunctions and cause damage in aircraft electronic equipment, making the utilization of shielded cables essential for mitigating damage caused by indirect lightning strike noise. We conducted an analysis of the impact of indirect lightning strikes on aircraft shielded cables considering factors, such as the presence of shielding layers, core, and insulation in the cable structure. Furthermore, we validated our findings through simulations and experiments by applying the internationally recognized standard for indirect lightning, RTCA DO-160G Sec. 22.

본 논문에서는 항공기용 차폐 케이블의 구조에 따른 간접낙뢰의 영향성을 분석하고, 차폐력 향상을 위한 차폐 케이블 구조를 분석하였다. 항공기에서 케이블은 부품 중에 가장 많은 비중을 차지하고 있고, 항공기 프레임과 전자기기들이 연결되어 있어 영향을 많이 줄 수 있다. 특히, 간접낙뢰 노이즈는 항공 전자기기 오동작 및 손상을 발생시킬 수 있어, 차폐 케이블을 활용하여 간접낙뢰 노이즈로 인한 피해를 줄일 수 있다. 항공기용 차폐 케이블의 차폐층 유무, 내심, 절연체 등의 케이블 구조에 따른 간접낙뢰 영향성 분석을 진행하였다. 또한, 간접낙뢰 공인 규격인 RTCA DO-160G Sec. 22를 적용하여 시뮬레이션 및 실험하여 검증하였다.

Keywords

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