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A one dimensional discrete approach for the determination of the cross sectional properties of composite rotor blades

Author

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  • Saravia, Martín C.
  • Saravia, L. Joaquín
  • Cortínez, Víctor H.

Abstract

This work presents the theoretical aspects of a one dimensional computational approach for the determination of the cross sectional stiffness of composite rotor blades. The method is based on a vector variant of the classical lamination theory embedded into a geometrically exact large deformation-small strain thin-walled beam formulation, which is naturally oriented to multibody problems. The procedures rely on a one-dimensional discretization of the aerodynamic profile of the blade; this generates groups of finite segments of composite laminates which are assembled to find the stiffness properties of the blade cross section. The formulation accounts for warping and transverse shear; the warping problem is solved numerically by means of a one dimensional finite element formulation. The numerical tests show that the formulation gives very accurate results.

Suggested Citation

  • Saravia, Martín C. & Saravia, L. Joaquín & Cortínez, Víctor H., 2015. "A one dimensional discrete approach for the determination of the cross sectional properties of composite rotor blades," Renewable Energy, Elsevier, vol. 80(C), pages 713-723.
    • Handle: RePEc:eee:renene:v:80:y:2015:i:c:p:713-723
    DOI: 10.1016/j.renene.2015.02.046
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    References listed on IDEAS

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    1. Wang, Lin & Liu, Xiongwei & Guo, Lianggang & Renevier, Nathalie & Stables, Matthew, 2014. "A mathematical model for calculating cross-sectional properties of modern wind turbine composite blades," Renewable Energy, Elsevier, vol. 64(C), pages 52-60.
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    Cited by:

    1. Saravia, C. Martín & Gatti, Claudio D. & Ramirez, José M., 2017. "On the determination of the mechanical properties of wind turbine blades: Geometrical aspects of line based algorithms," Renewable Energy, Elsevier, vol. 105(C), pages 55-65.

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