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The increasing size and flexibility of wind turbine blades introduce significant aeroelastic effects, potentially causing aeroelastic instability such as edgewise instability and flutter. Current linear models, based on small deflection assumptions, are inadequate for modern large blades that experience significant geometric nonlinearities. Existing cross-sectional analysis models also face issues of inaccuracy and inefficiency.This book develops two key advancements: 1) a cross-sectional model using classical lamination theory and extended Bredt-Batho shear flow theory to accurately and…mehr

Produktbeschreibung
The increasing size and flexibility of wind turbine blades introduce significant aeroelastic effects, potentially causing aeroelastic instability such as edgewise instability and flutter. Current linear models, based on small deflection assumptions, are inadequate for modern large blades that experience significant geometric nonlinearities. Existing cross-sectional analysis models also face issues of inaccuracy and inefficiency.This book develops two key advancements: 1) a cross-sectional model using classical lamination theory and extended Bredt-Batho shear flow theory to accurately and efficiently determine composite blade properties; 2) a nonlinear aeroelastic model incorporating geometrically exact beam theory and a comprehensive load model.Validated through MATLAB and COMSOL Multiphysics, these models show excellent agreement with experimental data. Application to the WindPACT 1.5MW blade reveals reduced flapwise deflection and highlights the higher risk of edgewise instability, underscoring the importance of proper rotor speeds. This book offers vital insights and advanced models for developing reliable, efficient next-generation wind turbines.
Autorenporträt
Dr Lin Wang is an Assistant Professor at the University of Nottingham. He has been working on wind energy for over 10 years. He has participated in several research project related to wind energy, funded by EPSRC, EU, Carbon Trust and DECC (Department of Energy and Climate Change). He has authored more 40 papers in highly-regarded journals.