Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
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A Design and Experiment of Pressure and Shape Adaptive Mechanism for Detection of Defects in Wind Power Blade

풍력 발전용 블레이드 접합부의 결함 검출을 위한 일정가압 메커니즘 설계 및 실험

  • Lim, Sun (Department of Engineering, Korea Electronic Technology Institute) ;
  • Lim, Seung Hwan (Department of Engineering, Korea Electronic Technology Institute) ;
  • Jeong, Ye Chan (Department of Engineering, Korea Electronic Technology Institute) ;
  • Chi, Su Chung (Samyong Inspection Engineering co., LTD) ;
  • Nam, Mun Ho (Samyong Inspection Engineering co., LTD)
  • 임선 (전자부품연구원) ;
  • 임승환 (전자부품연구원) ;
  • 정예찬 (전자부품연구원) ;
  • 지수정 ((주)삼영검사엔지니어링 부설연구소) ;
  • 남문호 ((주)삼영검사엔지니어링 부설연구소)
  • Received : 2017.08.01
  • Accepted : 2017.09.01
  • Published : 2017.09.25
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Abstract

Purpose: Reliability is the most important factor to detect defects as wind turbines are deployed in large blades. The methods of detecting defects are various, such as non-destructive inspection and thermal imaging inspection. We propose the phased array ultrasonic testing method of non-destructive testing. Methods: We propose the active pressure mechanism for wind power blade. The phase array ultrasonic inspection method is used for fault detection inner blade surface. Controlled pressure of mechanism with respect to z-axis is important for guarantee the result of phase array ultrasonic inspection. The model based control and proposed mechanism are utilized for overall system stability and effectiveness of system. Result: The result of proposed pressure mechanism B is more stable than A. Convergence speed is also faster than A. Conclusion: We confirmed the performance of the proposed constant pressure mechanism through experiments. Non-destructive testing was applied to the specimen to confirm the reliability of detecting defects.

Keywords

References

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