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1、2024/8/181题目：小型风力发电机叶片设计与制造的研究 姓名：黄传文学号：Z2012034专业：机械工程 The study of the small wind turbine blade design and manufacture ABSTRACT With the consumption of fossil fuels and their serious impact on theenvironment, the wind energy with the advantages of clean and can be recycled for use is growing impor
2、tance to many countries and they are actively developing and utilizing its wind resource, China is no exception. The main results achieved are as following:1. According to the classic theory of the wind turbine blade design and using 3D modeling software, the blades 3-D solid model is established. A
3、ccording to the situation that there are lots of aerofoil data, a suitable modeling method is put out which make the modeling more quickly and accurately. 2. Based on the solid model and aerofoil design section respectively, two blade mold design and manufacturing methods are put out. There are diff
4、erent advantages in each of two methods, which can be chosen according to the actual production conditions.3. In order to create high-strength lightweight blade, the key technology of composite material manufacture are analysised and the relevant parameters are identified. Using of strain measuremen
5、t technology, composite materials strength properties and the constants are determined. It provide materials data for FEM analysis .4. Introduced the manufacturing process of how complete the blade. At last, we take the static and vibration experiments to blade; the result verified the correctness o
6、f finite element analysis and the blades practicality . Background and Significance At present, the world attach great importance to energy issues, as the total energy consumption of the first electricity is a secondary energy by other energy converted from.The world energy production is mainly by t
7、he constraints of the natural environment by hydropower and thermal power, Hydropower is restricted by the constraints of the natural environment and the environmental pollution is caused by coal-fired power seriously. In order to reduce the thermal power pollution of the atmosphere, the countries i
8、n the world are actively developing wind power. China is also working to promote the development of wind power. The manufacture and maintenance of wind turbines will also become an emerging manufacturing industry in the future. The applicability of small wind turbines is very broad in China. Indepen
9、dent and efficient small wind turbine power generation is realistic for Chinas rural wind energy resource-rich areas, or national electricity grid areas not covered. The blades are the key components of the wind turbine. The blade of wind turbine converts the movement of the wind wheel rotation whic
10、h will drive a generator and the design and manufacturing of blade will have a direct relationship to the efficiency and the life of wind generator, so the study of design and manufacture of the blade has a very important significance. This topic is the study of blade design and manufacturing proces
11、s. The content and methods of research1. Depending on the wind turbine blade design theory and Guangxi local wind conditions, I design a suitable wind turbine blades. The main task is to determine the length of wind turbine blades, and the different sections of the airfoil chord length and installat
12、ion angle , and use three-dimensional modeling software Pro / Engineer to establish a three-dimensional solid model of the blade. 2. According to the blades entity model and section parameters , I design blades molds. This article will be used two different methods to research, and compare the advan
13、tages and disadvantages of the two methods . 3. Manufacturing process of the blade. This will be the content of glass fiber and resin , the resin curing temperature and time relationship between the degree of diluent and plated resin Bo resistance, the use of mold release agents were studied ,and te
14、st the mechanical properties of composite materials, The test results will be used for the subsequent finite element analysis of data and evidence .4. This paper determines leaf thickness and internal support structure. Finally, I verify the correctness and blade performance analysis of the actual s
15、ituation The airfoil cross-section plan Conclusion1. This paper studied two blade mold design and manufacturing methods , these two methods in the process and costs as well as production efficiency advantages and disadvantages , according to the actual situation of the appropriate choice of mold des
16、ign and manufacturing methods.2. This paper discusses the process of composite manufacturing some of the more important processes, such as the ratio of fiber and resin , curing agent and the amount of diluent , curing temperature , the manufacturing of the composite material has a high specific stre
17、ngth and specific rigidity.Production molding mold3. Based on the results and the ease of implementation process, this article determines an internal support structure of the blade , plated glass fiber layers, with the top and bottom surface of the blade size, etc. , and finally complete blade manufacturing . 4. This article describes the finite element analysis of the blade manufacturing a guiding role.
