Identification and Use of Blade Physical Properties

* * * § The paper describes a comprehensive method of determining the equivalent beam properties of a full finite element model of a wind turbine blade. The approach uses the displacements of the model to a series of unit loads applied at the blade tip to calculate the stiffness matrices of the equivalent beam elements. The method includes all aspects of the deformation such as shear and warping. A series of test cases are presented for verification and the method is applied to a blade section of constant section as well as to a model of a full blade.