Effect of laminate configuration and shell-thickness variation on the inducted twist distribution in wind turbine adaptive blades

This paper presents an analytical model for predicting the dynamic characteristics of composite wind turbine blades. In this model, the governing equations of motion are derived using Hamiltion's principle and are solved by using extended Galerkin's method. This model is capable of predict...

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Bibliographic Details
Published in2012 2nd International Symposium On Environment Friendly Energies And Applications pp. 406 - 411
Main Authors Hui Zhang, Daadbin, A., Maheri, A., Hackney, P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Adaptation models
adaptive blades
Analytical models
Blades
extended Galerkin's method
Hamiltion's principle
Materials
Mirrors
Predictive models
thin-walled composite beam
wind turbine blade
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Summary:This paper presents an analytical model for predicting the dynamic characteristics of composite wind turbine blades. In this model, the governing equations of motion are derived using Hamiltion's principle and are solved by using extended Galerkin's method. This model is capable of predicting natural frequencies of composite beams with arbitrary single-cell cross sections. For various layup configurations, the results obtained by the developed analytical model are compared with the results of the finite element analysis. It is shown that the analytical model provides reasonable accuracy in predicting natural frequency of unbalanced layup configurations with ply angles of up to 40 degrees.
ISBN:1467329096
9781467329095
DOI:10.1109/EFEA.2012.6294046