Proceeding of EDISON Challenge (EDISON SW 활용 경진대회 논문집)

Korea Institute of Science and Technology Information (한국과학기술정보연구원)
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Study on Vibration Characteristics in terms of Airfoil Cross-Sectional Shape by Using Co-rotational Plane Beam-Transient analysis

Co-rotational Plane beam-Transient analysis를 이용한 에어포일 단면 형상 변화에 따른 진동특성 연구

  • Kim, Se-Ill (Mechanical and Aerospace Engineering, Seoul National Univ.) ;
  • Kim, Yong-Se (Mechanical and Aerospace Engineering, Seoul National Univ.) ;
  • Park, Chul-Woo (Mechanical and Aerospace Engineering, Seoul National Univ.) ;
  • Shin, SangJoon (Mechanical and Aerospace Engineering, Seoul National Univ.)
  • 김세일 (서울대학교 기계항공공학부) ;
  • 김용세 (서울대학교 기계항공공학부) ;
  • 박철우 (서울대학교 기계항공공학부) ;
  • 신상준 (서울대학교 기계항공공학부)
  • Published : 2016.03.22
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Abstract

In this paper, vibration characteristics in terms of the airfoil cross-sectional shape was examined by using the EDISON co-rotational plane beam-transient analysis. Assuming aircraft wing as a cantilevered beam with a constant cross-sectional shape, natural frequencies of each airfoil shape was compared while varying airfoil maximum thickness and maximum camber length, using Fast Fourier Transformation(FFT). When the airfoil maximum thickness was varied, natural frequency showed peak value at 18% chord, and decreased afterwards. When the airfoil maximum camber length was varied, natural frequency either increased or decreased at 6% chord, while at 8% the natural frequency showed its maximum. Applying such trends to B-737 wing airfoil, an improved B-737_mod airfoil shape was obtained with regard to the vibration characteristics.

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