Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Investigation of Effects of Lightning and Icing on an e-VTOL UAM Aircraft and a Proposal for Certification Guidance

e-VTOL UAM 항공기의 낙뢰 및 결빙 영향성 분석 및 인증기술에 관한 연구

  • Kim, Yun-Gon (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Jo, Hyeonseung (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Jo, Jae-Hyeon (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Park, Se-Woong (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Myong, Rho-Shin (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
  • 김윤곤 (경상대학교 기계항공공학부) ;
  • 조현승 (경상대학교 기계항공공학부) ;
  • 조재현 (경상대학교 기계항공공학부) ;
  • 박세웅 (경상대학교 기계항공공학부) ;
  • 명노신 (경상대학교 기계항공공학부)
  • Received : 2020.12.28
  • Accepted : 2021.03.16
  • Published : 2021.06.30
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Abstract

Demand for UAM (Urban Air Mobility) aircraft is rapidly increasing in countries around the world due to the problem of traffic congestion in urban areas. Through research and development, various e-VTOL aircraft concepts are being prepared for commercialization, for which airworthiness certification is required, since it is a manned transportation mode for people to board. Factors that pose a fatal threat to the safe operation of UAM aircraft include lightning strikes that can cause damage to structures and disturb the navigation system, as well as icing that impairs flight stability. Since the current UAM aircraft-related lightning and icing certification technology development is insufficient, there is need to develop appropriate airworthiness certification guidelines. In this study, after analyzing the laws and regulations related to aircraft by the FAA and the EASA, we tried to incorporate the lightning and icing certification guidelines for the UAM aircraft. We also analyzed the effects of lightning and icing on UAM aircraft using computational simulation, and presented the basis for establishing practical guidelines for the certification of UAM aircraft to be adopted in the future.

세계 각국은 도심지역 교통체증으로 인해 UAM (Urban Air Mobility) 항공기에 대한 수요가 급부상하고 있다. 전기추진 수직이착륙기(e-VTOL) 개념의 다양한 항공기가 연구개발을 통해 상용화 준비 중이며, 사람이 탑승하는 유인운송수단이므로 감항인증이 요구된다. UAM 항공기의 안전 운항에 치명적인 위협을 가하는 요소는 구조물 손상과 항법 장치 교란을 유발하는 낙뢰와 비행 안정성을 저해하는 결빙이다. 현재 UAM 항공기 관련 낙뢰 및 결빙 인증기술 개발이 미비한 실정이므로, 적절한 감항인증 지침을 개발할 필요가 있다. 본 연구에서 미연방항공청(FAA), 유럽항공안전청(EASA)의 항공기 관련 법령 및 규정을 분석한 후, 낙뢰 및 결빙 인증지침을 UAM 항공기에 접목하고자 하였다. UAM 항공기에 대한 낙뢰 및 결빙의 영향성을 전산 시뮬레이션을 통해 분석하였고, 향후 운용될 UAM 항공기의 인증을 위한 실무지침 수립의 근거를 제시하였다.

Keywords

Acknowledgement

이 논문은 국토교통부와 국토교통과학기술진흥원 및 항공안전기술원의 민수헬기인증개발사업과제(20CHTR-C139569-04)의 지원과 과학기술정보통신부의 재원으로 한국연구재단(NRF-2017R1A5A 1015311)의 부분적 지원을 받아 수행되었습니다.

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