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http://dx.doi.org/10.3795/KSME-A.2012.36.3.297

Analysis of Wind-Turbine Blade Behavior Under Static Dual-Axis Loads  

Son, Byung-Jik (Dept. of Civil & Environmental Engineering, Konyang Univ.)
Huh, Yong-Hak (Korea Research Institute of Standards and Science)
Kim, Dong-Jin (Korea Research Institute of Standards and Science)
Kim, Jong-Il (Korea Research Institute of Standards and Science)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.3, 2012 , pp. 297-304 More about this Journal
Abstract
For the assessment of the performance of a wind-turbine blade, a simulated loading test may be required. In this study, the blade behavior was investigated through numerical analysis using a dual-axis loading test, closely simulating the real operation conditions. The blade structure for the 100-kW-class wind-turbine system was modeled using the finite element (FE) program ANSYS. The failure criteria and buckling analysis under dual-axis loading were examined. The failure analysis, including fiber failure and inter-fiber failure, was performed with Puck's failure criterion. As the dual-axis load ratio increases, the relatively increased stress occurs at the trailing edge and skin surface 3300-3600 mm away from the root. Furthermore, it is revealed that increasing the dual-axis load ratio makes the location that is weakest against buckling move toward the root part. Thus, it is seen that the dual-axis load test may be an essential requirement for the verification of blade performance.
Keywords
Wind Turbine Blade; Dual-Axis Loads; Puck Failure Criterion(Puck); Composite Laminate; Static Behaviors; Inter-fiber Failure Criterion; Fiber Failure Criterion;
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  • Reference
1 Son. C. Y., 2010, "Marine Wind Force Development," Book Press Ajin
2 White, D., 2004, "New Method for Dual-Axis Fatigue Testing of Large Wind Turbine Blades Using Resonance Excitation and Spectral Loading," NREL
3 Court, R.S., Ridley, S., Jones, H., Bonnet, P.A., Dutton, A.G., 2009, "Fatigue Testing of Wind Turbine Blades with Computational Verification," ICCM-17, Edinburgh
4 ANSYS, 2006, "ANSYS 11.0 Structural Analysis Guide," ANSYS Inc.
5 Puck, A. and Schurmann, H., 2002, "Failure Analysis of FRP Laminates by Means of Physically based Phenomenological Models," Composite Science and Technology 62, pp. 1663-1662.   DOI   ScienceOn