Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
권호 표지

Reliability Evaluation of Constant Pressure Mechanism on Phased Array Ultrasonic Testing for Wind Turbine Blade

위상배열 탐상검사법을 이용한 풍력발전용 블레이드의 일정가압 메커니즘 신뢰성 평가

  • Nam, Mun Ho (Samyong Inspection Engineering co., LTD) ;
  • Chi, Su Chung (Samyong Inspection Engineering co., LTD) ;
  • 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)
  • 남문호 ((주)삼영검사엔지니어링 부설연구소) ;
  • 지수정 ((주)삼영검사엔지니어링 부설연구소) ;
  • 임선 (전자부품연구원) ;
  • 임승환 (전자부품연구원) ;
  • 정예찬 (전자부품연구원)
  • Received : 2017.08.01
  • Accepted : 2017.09.01
  • Published : 2017.09.25
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Abstract

Purpose: There is no established inspection system for composite wind blade during the fabrication stage even though the blades are one of the most important part at wind generation system, but phased array ultrasonic testing method has been continuously studied about wind turbine blade with composite. When wind turbine blade with complex shape by phased array probe is inspected, it is necessary to study for system keeping constant pressure using pressure device. Methods: In this paper, we propose constant pressure device for inspecting wind turbine blade by phased array ultrasonic test method. Design of the device controller is based on Hunt-Crossley model. We evaluate reliability of phased array ultrasonic inspection result that applicated constant pressure device. Result: Defect indication is precise and its error is small when constant pressure mechanism based on Hunt-Crossley model was used. Conclusion: When inspection is progressed using constant pressure mechanism, the reliability of composite wind blade inspection can be improved.

Keywords

References

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