Computational Vibration and Characteristic Analyses for Tilt-Rotor Vehicle Considered 3-Dimensional Supporting Equipment Structures

탑재장비 3차원 지지구조 형상을 고려한 틸트로터 항공기 전산진동해석 및 특성분석

  • 김유성 (국립경상대학교 대학원 기계항공공학부) ;
  • 김동현 (국립 경상대학교 기계항공공학부 및 항공기부품기술연구소) ;
  • 김동만 (국립경상대학교 대학원 기계항공공학부) ;
  • 이정진 (항공우주연구원) ;
  • 김성준 (항공우주연구원)
  • Published : 2007.05.10

Abstract

In this study, structural vibration analyses of a smart unmanned aerial vehicle (UAV) have been conducted considering dynamic hub-loads of tilt rotor. Practical computational structural dynamics technique based on the finite element method is applied using MSC/NASTRAN. The present UAV(TR-S5-04) finite element model is constructed as a full three-dimensional configuration with different fuel conditions and tilting angles for helicopter, transient and airplane flight modes. In addition, the 3-dimensional supporting equipment structures of electronic devices are considered for vibration analysis. As the results of this study, transient structural displacements and accelerations are presented in detail. Moreover, vibration characteristics of structural parts and installed equipments are investigated for different fuel conditions and tilting angles.

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