Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Aerodynamic Analysis, Required Power and Weight Estimation of a Compound (Tilt rotor + Lift + Cruise) Type eVTOL for Urban Air Mobility using Reverse Engineering Techniques

역설계 기법을 사용한 도심항공 모빌리티용 복합형(틸트로터 + 양력 + 순항) eVTOL의 공력 해석, 요구 동력 및 중량 예측

  • Kim, Dong-Hee (Department of Physics and Astronomy, and Department of Aerospace Engineering, Sejong University) ;
  • Lee, Joon-Hee (Department of Aerospace Engineering, Sejong University) ;
  • Hwang, Ho-Yon (Department of Aerospace Engineering, and Department of Convergence Engineering for Intelligent Drone, Sejong University)
  • 김동희 (세종대학교 물리천문학과, 항공우주공학과) ;
  • 이준희 (세종대학교 항공우주공학과) ;
  • 황호연 (세종대학교 항공우주공학과, 지능형드론 융합전공학과)
  • Received : 2021.01.12
  • Accepted : 2021.02.24
  • Published : 2021.02.28
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Abstract

Recently, eVTOL, the next-generation of eco-friendly transportation, has been in the spotlight due to global warming along with traffic jams in large cities of many countries. This study benchmark the external features of Hyundai Motors S-A1, a compound eVTOL combined fixed and tilt rotors among many types of eVTOLs, to create the basic configuration using reverse design techniques. Basic configurations were created using CATIA and aerodynamic analyses were performed using the aircraft design and aerodynamic analysis programs, OpenVSP, XFLR5, and the aircraft wetted area, drag, and lift were calculated after selecting the airfoil, incidence angle, and dihedral and anhedral angles through trade study. Also, required powers were estimated for completing the given mission profile and components weight and the total weight were predicted using the estimation formula and data survey.

최근 많은 나라 대도시의 교통체증과 더불어 지구온난화로 인해 차세대 친환경 교통수단인 eVTOL이 각광받고 있다. 본 연구에서는 많은 유형의 eVTOL 중 고정로터와 틸트로터가 결합된 복합형 eVTOL인 현대자동차 S-A1의 외부형상을 벤치마킹하여 역설계 기법을 활용하여 기본 형상을 구현하였다. CATIA를 사용하여 기본 형상을 구현한 후 항공기 설계 및 공력해석 프로그램인 OpenVSP, XFLR5를 사용하여 공력해석을 수행하였고 비교분석을 통해 익형과 붙임각, 상/하반각을 선택한 후 항공기 표면적 및 항력, 양력을 계산하였다. 또한 주어진 임무형상을 수행하기 위한 필요 동력을 산정하고 추정식과 자료조사를 통하여 구성품과 전체 무게를 추정하였다.

Keywords

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