Structural Analysis of Wind-Turbine Blades by a Generalized Timoshenko Beam Model

摘要: An important aspect in wind-turbine technology nowadays is to reduce the uncertainties related blade dynamics by improvement of quality numerical simulations fluid-structure interaction process. A fundamental step that direction implementation structural models capable capturing complex features innovative prototype blades, so they can be tested at realistic full-scale conditions with a reasonable computational cost. To this end, we developed code based on modified variational-asymptotic beam sectional (VABS) technique proposed Hodges VABS has capacity reducing geometrical complexity section into stiffness matrix for an equivalent beam, allowing accurate modeling 3D structure as 1D finite-element problem. In paper, report some recent results have obtained applying our composite laminate analyzing vibrational modes and stress load normal operational conditions.