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Titre :
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Structural analysis of wind-turbine blades by a generalized timoshenko beam model (2010)
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Auteurs :
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Alejandro D. Otero, Auteur ;
Fernando L. Ponta, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Transactions of the ASME. Journal of solar energy engineering (Vol. 132 N° 1, Janvier 2010)
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Article en page(s) :
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pp. [011015/1-8]
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Note générale :
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Energie Solaire
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Langues :
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Anglais
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Index. décimale :
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621.47
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Tags :
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Blades Finite element analysis Wind turbines
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Résumé :
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An important aspect in wind-turbine technology nowadays is to reduce the uncertainties related to blade dynamics by the improvement of the quality of numerical simulations of the fluid-structure interaction process. A fundamental step in that direction is the implementation of structural models capable of capturing the complex features of innovative prototype blades, so that they can be tested at realistic full-scale conditions with a reasonable computational cost. To this end, we developed a code based on a modified implementation of the variational-asymptotic beam sectional (VABS) technique proposed by Hodges et al. VABS has the capacity of reducing the geometrical complexity of the blade section into a stiffness matrix for an equivalent beam, allowing accurate modeling of the 3D structure of the blade as a 1D finite-element problem. In this paper, we report some recent results we have obtained by applying our code to full-scale composite laminate wind-turbine blades, analyzing the fundamental vibrational modes and the stress load in normal operational conditions.
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DEWEY :
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621.47
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ISSN :
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1099-6231
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En ligne :
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http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000132000001011015000001&idtype=cvips&gifs=Yes&ref=no
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