Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Development of Fatigue Load Spectrum and Fatigue Analysis for the Tilt Rotor UAV

틸트 로터 무인항공기의 피로하중 스펙트럼 생성 및 피로해석

  • 임종빈 (한국항공대학교 대학원) ;
  • 박영철 (한국항공대학교 대학원) ;
  • 박정선 (한국항공대학교 항공우주및기계공학부) ;
  • 이정진 (한국항공우주연구원)
  • Published : 2007.05.30
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Abstract

In this paper, the fatigue load spectrum for tilt rotor UAV is developed and fatigue analysis is achieved for flaperon joint. Tilt rotor UAV has two modes which are helicopter mode when UAV is taking off and landing and fixed wing mode when UAV is cruising. To make fatigue load spectrum, FELIX for helicopter mode and TWIST for fixed wing mode are used. And Fatigue analysis of flaperon joint is achieved using fatigue load spectrum we obtained. When S-N test data are analyzed, we use the Kriging meta model to get probability S-N curve for whole range of material life. The result which is life of flaperon joint obtained by suggested fatigue analysis procedure in this paper is compared with that obtained by MSC/Fatigue.

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