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http://dx.doi.org/10.3795/KSME-B.2011.35.5.513

Modal Analysis of Wind Turbine Blade Using Optical-Fiber Bragg-Grating Sensors  

Kim, Chang-Hwan (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Paek, In-Su (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Yoo, Neung-Soo (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Nam, Yoon-Su (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.5, 2011 , pp. 513-516 More about this Journal
Abstract
The dynamic behavior of a small wind-turbine blade was analyzed experimentally. Arrays of fiber Bragg-Grating (FBG) sensors attached along the blade were used to measure the strains of the blade surface. An impact test was performed to estimate the resonance frequencies of the fundamental and higher modes of the cantilever blade system developed for this study. The results were similar to the results for conventional strain gages. However, FBG sensors could sense modes that strain gauges could not sense. The strains obtained from the FBG sensor array were used to estimate displacement-mode shapes of the blade.
Keywords
Wind Turbine Blade; Modal Analysis; Resonance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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