Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Structural Vibration Analysis of a Helicopter Search Light Considering Aerodynamic Buffet Load

공력 Buffet 하중을 고려한 헬리콥터 탐색등의 구조진동해석

  • 김요한 (국립경상대학교 대학원 기계항공공학부) ;
  • 김동만 (국립경상대학교 대학원 기계항공공학부) ;
  • 김동현 (국립경상대학교 기계항공공학부 및 항공기부품기술연구소) ;
  • 최희주 (퍼스텍(주)) ;
  • 박용석 (퍼스텍(주)) ;
  • 김종건 (퍼스텍(주))
  • Published : 2009.09.20
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Abstract

In this study, computational structural vibration analysis of helicopter search light exposing unsteady buffet load have been conducted using combined advanced numerical methods. Unsteady CFD method based on Navier-Stokes equations is used to predict viscous buffet load due to flow separation effects. Full three-dimensional finite element model is constructed in order to conduct static and structural dynamic analyses of the search light model for two different typical flight speeds. Also, the correct performance of the search light can be physically estimated to examine the actual lighting area considering the effects of structural deformations.

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References

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