| Wind energy has characteristics of instability, low energy density and geographic dispersion in nature. Wind turbines worked in a terrible environment for a long time, under the effect of wind shear and surface contamination corrosion, which led to the complex dynamic response and flow solid coupling problem. High demands had been made to its safety and reliability. Wind turbine blade design process includes aerodynamic design and structural design. Efficient, accurate analysis of aerodynamic and structural had great significance for both improvement of wind turbine design efficiency and safe operation of wind turbine.According to the experimental results of the Danish Tjaereborg2MW wind turbine which has constant speed and pitch control blade. The joint checking method of the wind turbine blade aerodynamic and structural based on Numeca, GH Bladed and Abaqus was proposed.The power of wind turbine had been checking by using CFD software Numeca and commercial software GH Bladed. The reliability of result had been confirmed by comparing the calculation and measured values. The flow field of wind turbine under typical operating conditions had been analyzed. The flow lines, turbulence intensity and pressure distribution in different sections had been compared. Then the inadequacies of the muiti-MW wind turbine in early time has been obtained.The dynamic response of wind turbine blade in fix state had been analyzed by using GH Bladed and Abaqus. The model of the wind turbine had been calculated. To confirm the reliability of the model, the model of the blade have been compared with the measured ones. The load distribution calculated in Numeca had been used in abaqus, Structural characteristics of the blade had been analyzed.Find a more intuitive and simple way for large wind turbine blade aerodynamic and structure analysis. |
PDF Full Text Request