Hingeless Blade Reinforcement for Whirl Tower Test of Bearingless Hub

무베어링 허브 훨타워 시험을 위한 무힌지 블레이드 보강

  • 김태주 (한국항공우주연구원 회전익기술팀) ;
  • 윤철용 (한국항공우주연구원 회전익기술팀) ;
  • 기영중 (한국항공우주연구원 회전익기술팀) ;
  • 김승호 (한국항공우주연구원 회전익기술팀) ;
  • 정성남 (건국대학교, 항공우주정보시스템공학과) ;
  • Received : 2011.12.06
  • Accepted : 2012.01.21
  • Published : 2012.03.31


During helicopter rotor system development process, whirl tower test is conducted basically. For conducting whirl tower test during bearingless hub development process, design new blade or using existing blade with repair or remodeling. Because simple shape and efficient aerodynamic characteristic, BO-105 blade is used for hub system development widely. Originally BO-105 Blade is used for hingeless hub, so flap stiffness and lag stiffness on blade root area is relatively low. So appling BO-105 blade to bearingless hub whirl tower test, root area have to be reinforce. In this paper, suggest reinforcement method of BO-105 blade root area.