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

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Validation Study of Composite Rotor Blade Sectional Analysis Program (Ksec2d-AE)

복합재료 블레이드 단면 해석 프로그램(Ksec2d-AE)의 신뢰성 검증

  • Bae, Jae-Seong (Department of Aerospace Information Engineering, Konkuk University) ;
  • Kim, Hyun-Sik (Department of Aerospace Information Engineering, Konkuk University) ;
  • Bae, Jin-Kyu (Department of Aerospace Information Engineering, Konkuk University) ;
  • Lim, Tae-Hyun (Department of Aerospace Information Engineering, Konkuk University) ;
  • Hwang, Jae-Min (Department of Aerospace Information Engineering, Konkuk University) ;
  • Jung, Sung Nam (Department of Aerospace Information Engineering, Konkuk University)
  • Received : 2017.06.23
  • Accepted : 2018.01.30
  • Published : 2018.04.01
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Abstract

In this study, the accuracy and efficiency of a composite rotor blade cross-section analysis program, Ksec2d-AE, which is available at an educational web-based platform called EDISON-CSD, are assessed for possible use in undergraduate structural analysis projects. To this purpose, the convergence of cross-sectional constants by varying the number of finite elements in the cross-section of a wind turbine blade is investigated. The stiffness constants along with the cross-sectional engineering offsets obtained using Ksec2d-AE are validated against a 3D finite element analysis program MSC NASTRAN.

본 연구에서는 유한요소법 기반의 단면 특성치 해석 프로그램인 Ksec2d-AE의 정확성을 검증함으로써, 학부 수준의 비행체 구조해석 및 설계 시 활용가능성을 제시하고자 한다. 이를 위해 다양한 요소를 적용하여 Ksec2d-AE 로부터 계산된 단면강성계수 결과에 대한 유한요소의 수렴성을 확인하였다. 또한 Ksec2d-AE로부터 구한 단면강성계수를 상용 구조해석 프로그램인 MSC NASTRAN 으로부터 구한 강성계수와 비교하고, 주요 공학적 중심치(인장 중심, 전단 중심, 주 굽힘축)의 특성에 부합하게 구조물이 거동하는지 확인함으로써 Ksec2d-AE의 단면강성계수 및 중심치 결과를 검증하였다. 본 연구를 통하여 Ksec2d-AE 프로그램의 유용성을 확인하였다.

Keywords

References

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