Flutter Safety Analysis of a Composite Smart UAV with T-tail Configuration

T-형 꼬리날개를 갖는 복합재 스마트 무인기의 플러터 안전성 해석

  • 김동현 (국립경상대학교 기계항공공학부) ;
  • 양용준 (국립경상대학교 기계항공공학부 대학원) ;
  • 정세윤 (국립경상대학교 기계항공공학부 대학원) ;
  • 김성준 (한국항공우주연구원) ;
  • 최익현 (한국항공우주연구원) ;
  • 김성찬 (한국항공우주연구원) ;
  • 신정우 (한국항공우주연구원)
  • Published : 2005.03.31

Abstract

In this study, subsonic flutter analyses have been conducted for a composite smart UAV with T-tail configuration at the critical flight condition. Detailed three-dimensional finite element model for dynamic analysis is constructed including its nonstructural elements corresponding to installed electronic equipments and fuels. Computational structural dynamics and aeroelastic techniques are conducted using MSC/NASTRAN and originally developed in-house codes. The results for fundamental vibration characteristics and flutter instabilities are presented and compared to each other for different fuel conditions.