A Kind of Innovative Design Methodology of Wind Turbine Blade Based on Natural Structure

Based on the mid axis pattern configuration, the topology adaption of the plant leaf vein is discussed in the first place., Secondly, combined with the blade principal stress field distribution cases, the adaptive design is applied in the blade structure by modifying "mid axis pattern" with the innovative design method, the blade is created and its performances were analyzed when working in random wind field. The results show that blade output response is more stable than traditional one. Further more, considering the blade material application, the blade performance applied with carbon fiber/fiberglass hybrid composites were analyzed for various arrangements of the blade key parts. It is concluded that applying the hybrid material in blade can promote the blade comprehensive performance effectively.