한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제47권2호
  • /
  • Pages.81-89
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  • 2019
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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전진 비행하는 Quad-Tilt Propeller 형상 무인기 날개에서 나타나는 공력간섭 현상에 대한 실험적 연구

A Experimental Study of Aerodynamic Interference on Quad-Tilt Propeller UAV Wings in Forward Flight Condition

  • Kim, Taewoo (Department of Aerospace System Engineering, Korea University of Science and Technology) ;
  • Chung, Jindeog (Korea Aerospace Research Institute) ;
  • Kim, Yangwon (Korea Aerospace Research Institute) ;
  • Park, Cheolwan (Korea Aerospace Research Institute) ;
  • Cho, Taehwan (Department of Aerospace System Engineering, Korea University of Science and Technology)
  • 투고 : 2018.10.03
  • 심사 : 2019.01.19
  • 발행 : 2019.02.01
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초록

본 연구는 쿼드 틸트 프로펠러(Quad Tilt Propeller)형상의 탠덤날개 항공기의 전진비행 조건을 풍동실험하여 전방 날개 및 프로펠러가 후방날개에 작용하는 공력 간섭효과를 분석하였다. 6축 밸런스시스템을 이용해 전기체의 힘을 측정하였고 날개뿌리에 부착된 스트레인게이지를 이용하여 각 날개의 굽힘모멘트를 측정하였다. 12홀 프로브를 이용해 날개 및 프로펠러 후류의 유동장을 측정하였으며, 털실과 스모크를 이용한 유동가시화 실험을 통해 유동 특징을 정성적으로 확인하였다. 요소별 공력간섭 현상을 측정하기 위해 프로펠러 부착 조합을 바꿔가며 전방날개와 프로펠러가 후방날개에 작용하는 영향을 분석하였다.

In this study, wind tunnel test on Quad-Tilt Propeller which has tandem wings is carried out to analyze the aerodynamic interference effect of front wing and propeller on rear wing during forward flight. Using 6-axis balance system, forces and moments of whole aircraft were measured and using strain gauge at wing root, bending moments were measured to observe change of aerodynamic force of each wings. A 12-hole probe was used to measure the flow field in the wing and propeller wake. Flow characteristics were observed qualitatively through flow visualization experiment using tuft and smoke. To measure the aerodynamic interference by elements, the influence of front wing and propeller on rear wing was analyzed by changing the wings and propellers mount combination.

키워드

참고문헌

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