The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Evaluation for Fatigue Resistance of Small Wind Turbine Composite Blade according to GL Guideline

GL Guideline에 의거한 소형 풍력발전용 복합재 블레이드의 피로 저항성 평가

  • Jang, Yun Jung (Research Center for Urban Wind Energy Systems, Kunsan National University) ;
  • Kang, Ki Weon (Department of Mechanical Engineering, Kunsan National University)
  • 장윤정 (군산대학교 풍력발전원천기술센터) ;
  • 강기원 (군산대학교 기계자동차공학부)
  • Received : 2012.10.05
  • Accepted : 2013.06.19
  • Published : 2013.08.01
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Abstract

This study aims to estimate the fatigue resistance of small wind composite blade using the fatigue life estimation formula in the GL guideline. For this, firstly, we estimated a turbine blade's bending moment spectrum by using wind profile wind profile and BEMT. And fatigue tests were performed to obtain the S-N curve of composite materials used in blade. In addition, a finite element analysis was used to identify fatigue critical locations and fatigue stress spectrum. And the fatigue resistance of composite blade were evaluated using the rainflow cycle counting, and Goodman diagram and the fatigue life estimation formula in the GL guideline.

Keywords

References

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