Browse > Article

Feasibility Study on Packaged FBG Sensors for Debonding Monitoring of Composite Wind Turbine Blade  

Kwon, Il-Bum (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Choi, Ki-Sun (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Kim, Geun-Jin (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Kim, Dong-Jin (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Huh, Yong-Hak (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Yoon, Dong-Jin (Center for Safety Measurement, Korea Research Institute of Standards and Science)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.31, no.4, 2011 , pp. 382-390 More about this Journal
Abstract
Smart sensors embedable in composite wind turbine blades have been required to be researched for monitoring the health status of large wind turbine blades during real-time operation. In this research, the feasibility of packaged FBG sensor probes was studied through the experiments of composite blade trailing edge specimens in order to detect cracking and debonding damages. The instants of cracking and debonding generated in the shear web were confirmed by rapid changes of the wavelength shifts from the bare FBG sensor probes. Packaged FBG sensor probes were proposed to remove the fragile property of bare FBG sensor probes attached on composite wind blade specimens. Strain and temperature sensitivity of fabricated probes installed on the skin of blade specimen were almost equal to those of a bare FBG sensor. Strain sensitivity was measured to be ${\mu}{\varepsilon}$/pm in a strain range from to 0 to 600 ${\mu}{\varepsilon}$, and the calculated temperature sensitivity was to be 48 pm/$^{\circ}C$ in the heating test up to 80 degree.
Keywords
Composite Wind Turbine Blade; Fiber Bragg Grating Sensor Probe; Packaging; Strain; Debonding;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Z-S. Guo, "Fiber Bragg grating sensors for fatigue monitoring of composite wind blades," Proc. of International SAMPE Symposium and Exhibition, Vol. 52, pp. 12 (2007)
2 C. S. Shin, B. L. Chen, J. R. Cheng and S. K. Liaw, "Impact response of a wind turbine blade measured by distributed FBG sensors," Materials and Manufacturing Processes, Vol. 25, No. 4, pp. 268-271 (2010)   DOI   ScienceOn
3 S. H. Eum, K. Kageyama, H. Murayama, K. Uzawa, I. Ohsawa, M. Kanai and H. Igawa, "Process/health monitoring for wind turbine blade by using FBG sensors with multiplexing techniques," Proc. of SPIE - The International Society for Optical Engineering, Vol. 7004, No. 70045B, (2008)
4 B. Allan, D. A. Horsley and J. R. Zayas, "Development of an embedded high performance MEMS-based fiber Bragg grating interrogation system for wind turbine applications," Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting, Vol. 10, pp. 7254-7264 (2006)
5 서대철, 권일범, 윤동진, 이승석, 이정률, "광섬유 FBG 센서를 이용한 탄성파 검출", 비파괴검사학회지, Vol. 30, No. 1, pp. 1-5 (2010)
6 정달우, 권일범, 최낙삼, "온도보상형 Double FBG 센서의 제작과 기계적 변형률 측정 시험", 비파괴검사학회지, Vol. 25, No. 5, pp 356-361 (2005)
7 권일범, "광섬유 센서를 이용한 구조물 안전 모니터링 기술", 비파괴검사학회지, Vol. 25, No. 5, pp. 400-404 (2005)
8 S. Park, T. Park and K. Han, "Real-time monitoring of composite wind turbine blades using fiber bragg grating sensors," Advanced Composite Materlals, Vol. 20, No. 1, pp. 39-51 (2011)   DOI   ScienceOn
9 A. Turner, T. W. Graver and A. Mendez, "Structural monitoring of wind turbine blades using fiber optic bragg grating strain sensors," Society for Experimental Mechanics-SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2010, Vol. 2, pp. 1285-1290 (2010)
10 H-J. Bang, H-K. Shin and Y-C. Ju, "Structural health monitoring of a composite wind turbine blade using fiber Bragg grating sensors," Proc. SPIE The International Society for Optical Engineering, Vol. 7647, No. 76474H, (2010)