The modal of three-bladed rotor,centre-fixed full disc was analyzed and centre-fixed cut disc was analyzed using the experiment modal analysis method in the paper,and their real mode shape were obtained.

With regard to the fast growth of application of composites in wind energy industry,some informations on the wind energy market growth,the production and value of wind turbine blades made of composites,the manufacturing process of blade components and the material development for blade manufacture are presented here.

In this paper a new method suitable for wind turbine blade is developed,this method adopts the Marc general finite element program as the fundamental platform,aerodynamic calculation is programmed into subroutine,based on the characteristic of subroutine calling,the boundary conditions exchange of fluid and structure in each incremental step is realized.

Numerical simulation of stall regulated wind turbine