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http://dx.doi.org/10.5293/kfma.2013.16.4.015

Evaluation for Fatigue Resistance of Small Wind Turbine Composite Blade according to GL Guideline  

Jang, Yun Jung (Research Center for Urban Wind Energy Systems, Kunsan National University)
Kang, Ki Weon (Department of Mechanical Engineering, Kunsan National University)
Publication Information
The KSFM Journal of Fluid Machinery / v.16, no.4, 2013 , pp. 15-21 More about this Journal
Abstract
This study aims to estimate the fatigue resistance of small wind composite blade using the fatigue life estimation formula in the GL guideline. For this, firstly, we estimated a turbine blade's bending moment spectrum by using wind profile wind profile and BEMT. And fatigue tests were performed to obtain the S-N curve of composite materials used in blade. In addition, a finite element analysis was used to identify fatigue critical locations and fatigue stress spectrum. And the fatigue resistance of composite blade were evaluated using the rainflow cycle counting, and Goodman diagram and the fatigue life estimation formula in the GL guideline.
Keywords
Composite blade; Fatigue resistance; GL guideline; Small wind turbine;
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Times Cited By KSCI : 2  (Citation Analysis)
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