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首页> 外文会议>ISES biennial solar world congress >DESIGN AND MANUFACTURING OF WIND TURBINE BLADES OF LOW CAPACITY USING CAD/CAM TECHNIQUES AND COMPOSITE MATERIALS
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DESIGN AND MANUFACTURING OF WIND TURBINE BLADES OF LOW CAPACITY USING CAD/CAM TECHNIQUES AND COMPOSITE MATERIALS

机译：低容量风轮机叶片的CAD / CAM技术和复合材料设计与制造

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This paper proposes a methodology for design and manufacturing of wind turbine blades of low capacity with CAD (Computer Aided Design)/ CAM (Computer Aided Manufacturing) techniques and composite materials. The design of the blades was performed with help of specialized software, one of them developed in the author's institution (TIMEO®). The manufacturing of the blades model was executed in a machining center of three axes CNC, DYNA MYTE DM-4800. The final manufacture of composite materials was performed. The wind energy is an indirect form of the solar energy, since they are the temperature differences and the pressure-induced in the atmosphere by absorbing solar radiation, which set in motion the winds. The rotor mission in a wind turbine is transforming this kinetic energy of wind to mechanic energy. In this paper the design of the blades is based on the blade element moment theory. For the design and manufacturing CAD/CAM was developed a general methodology. In manufacturing of the blade was necessary to manufacture a false bed, which was used as a virtual axis, this is because the milling machine where this was manufactured only has three axes. The mechanical efficiency of a wind turbine depends on other factors airfoil blade, since the aerodynamic forces that occur in this provides the torque necessary for rotating the electric generator. In this sense, obtaining highly accurate airfoil geometries helps to improve the efficiency of the wind machine. Blades were manufactured of length 75.5 cm, for a 600 watts wind turbine power, the design parameters were based on the environmental conditions of the coast of Michoacan, Mexico. The machining of the blades model are made from wood by mechanical milling, which is a manufacturing process for metal removal performed by the motion of a rotating cutting tool called milling cutter. The final manufacture of fiberglass performed and in which an internal structure is proposed to provide the parameters necessary rigidity and flexibility. The results obtained show that is feasible the manufacture of this type of mechanical elements through these techniques. We show that the precise control of geometry directly impacts in the aerodynamic efficiency of wind machine.
机译：本文提出了一种利用CAD（计算机辅助设计）/ CAM（计算机辅助制造）技术和复合材料设计和制造低容量风力涡轮机叶片的方法。刀片的设计是在专用软件的帮助下进行的，其中之一是在作者所在的机构（TIMEO®）中开发的。叶片模型的制造是在三轴CNC加工中心DYNA MYTE DM-4800中进行的。进行复合材料的最终制造。风能是太阳能的一种间接形式，因为它们是温差和通过吸收太阳辐射而在大气中引起的压力，从而使风运动。风力涡轮机中的转子任务将风的动能转换为机械能。在本文中，叶片的设计基于叶片单元力矩理论。为了进行设计和制造，开发了CAD / CAM通用方法。在刀片的制造中，制造假床是必要的，该假床用作虚拟轴，这是因为制造该假床的铣床仅具有三个轴。风力涡轮机的机械效率取决于翼型叶片的其他因素，因为由此产生的空气动力提供了旋转发电机所需的扭矩。从这个意义上讲，获得高度精确的机翼几何形状有助于提高风力机的效率。叶片的长度为75.5厘米，风轮功率为600瓦，设计参数基于墨西哥米却肯海岸的环境条件。刀片模型的加工是通过机械铣削由木材制成的，机械铣削是通过称为铣刀的旋转切削刀具的运动进行的金属去除的制造过程。进行了玻璃纤维的最终制造，其中提出了一种内部结构，以提供必要的刚性和柔韧性参数。获得的结果表明，通过这些技术制造这种类型的机械元件是可行的。我们表明，几何形状的精确控制直接影响风力机的空气动力学效率。

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