Proceeding of EDISON Challenge (EDISON SW 활용 경진대회 논문집)

Korea Institute of Science and Technology Information (한국과학기술정보연구원)
권호 표지

Optimization Study of a Helicopter Rotor Blade Section Using EDISON Ksec2D and Grid Search Method

EDISON Ksec2D와 Grid Search 법을 이용한 헬리콥터 블레이드 단면의 형상 최적화

  • Na, Deok-Hwan (Department of Aerospace Information Engineering, KonKuk Univ.) ;
  • Hahm, Jae-Joon (Department of Aerospace Information Engineering, KonKuk Univ.) ;
  • Bae, Jae-Seong (Department of Aerospace Information Engineering, KonKuk Univ.)
  • 나덕환 (건국대학교 항공우주정보시스템공학과) ;
  • 함재준 (건국대학교 항공우주정보시스템공학과) ;
  • 배재성 (건국대학교 항공우주정보시스템공학과)
  • Published : 2016.03.22
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, an optimization study on a helicopter rotor blade cross-section was made. Generalization was made to the baseline cross-section to simplify the analysis. To have better performance in aeroelastic response, with the aerodynamic center being the origin of the baseline, the distance between aerodynamic center and shear center, and the distance between mass center and shear center of the blade were minimized. For efficient searching of optimum solutions over the design space, grid search method, which is a method of graphical search was used. Two design variables, radius of balancing weight at leading edge, and offset of the spar from leading edge were selected for the study. Cubic spline interpolation method was used to accommodate searching of the optimum solution. 2-Leveled searching system was devised in accordance with the interpolation method. Optimum solution was found to show 6% decrease in both distance between aerodynamic center and shear center, and mass center and shear center to the baseline.

Keywords