The Design Optimization And Manufacture About GRP Blades Of The Vertical Axis Wind-driven Generator

With the energy and environment crisis becoming worse, wind power, as akind of green energy, has been gradually rising in the world. The currentmainstream of wind turbine is horizontal-axis wind turbine, which suffers lots ofproblems where there’s the need of greater power generation. These problems aresuch as the difficulty of blade processing, the poor stability of vertical shaft andthe high cost of blade lifting result from the blade being too long and the verticalshaft being too high. Thus, researchers begin to turn to vertical-axis wind turbine.However, vertical-axis wind turbine has no uniform theoretical system. Instead,different analysis methods are given for different vertical-axis wind turbines.In this paper, a specific type of vertical-axis wind turbine is discussed. First,its theoretical model is built on the basis of the Momentum-Blade ElementTheory. After the optimized target function being proposed, Matlab is used fortheoretical optimization and Fluent is used for simulation as well as to verify theoptimization results. Secondly, for the complex structure of this specificvertical-axis wind turbine, the structures of certain parts are optimized andimproved. Size of bolts that connect the root of the blade with the vertical shaftis designed. Also, the improved structure is proved reasonable using the softwareof Solidworks Simulation. Finally, this paper puts forward a new kind ofanti-corrosion treatment method to meet the need of anti-rust and anti-corrosion.As to this specific vertical-axis wind turbine, the appropriate processingtechnology and manufacturing materials are selected. Also, it’s appropriateprocessing mold is designed, to which the force simulation is conducted to checkthat it is able to stand the weight of blade and mold after processing.By the theoretical analysis of this specific wind turbine, this paper putsforward its power formula, which provides the foundation of theoretical guidancefor the further optimization of blade in the actual production. Through theoptimization and improvement of structure, the blade of the discussedvertical-axis wind turbine becomes simper and lighter. As a result, the transportation and installation costs of blade are reduced. The blade’s life extendsafter the use of new anti-corrosion processing method to its framework.Reduction of the blade’s processing costs as well as increase of its processingefficiency owes to the design of the specific processing mold and the selection ofthe specific manufacturing processing method for the blade of the discussed windturbine.