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Structural Optimization for Hybrid Vertical-Axis Wind Turbine Blade using Response Surface Method

반응표면법을 이용한 양항력형 수직축 풍력발전기 블레이드의 구조 최적 설계

  • So, Ki-Sung (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.) ;
  • Choi, Chan-Woong (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.) ;
  • Lee, Dong-Chul (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.) ;
  • Kang, Ki-Weon (Dept. of Mechanical Engineering, Kunsan Nat'l Univ.)
  • 소기성 (군산대학교 기계공학과) ;
  • 최찬웅 (군산대학교 기계공학과) ;
  • 이동철 (군산대학교 기계공학과) ;
  • 강기원 (군산대학교 기계공학과)
  • Received : 2013.03.10
  • Accepted : 2013.09.14
  • Published : 2013.11.01

Abstract

This study deals with the structural optimization of hybrid vertical-axis wind turbine blades using a response surface method (RSM). The structural analysis results suggest that the stress of hybrid vertical-axis wind turbine blades exceeds the yield strength. Optimization techniques are then applied to structural design to ensure a safe structure. First, the design factors that strongly influence the structural response are identified. The RSM was applied based on the design of experiments. The objective function and constraint terms set the weight and allowable stress, respectively. Furthermore, sensitivity analysis was conducted to indicate the effects of the design factors on the stress and weight. Finally, structural design was performed for the hybrid vertical-axis wind turbine blade.

Keywords

Blade;Response Surface Method;Structural Design;Vertical-Axis Wind Turbine;Optimal Design

Acknowledgement

Supported by : 한국연구제단(NRF)

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