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Development of Micro Downwind Turbine Generator Having Soft Blades

机译：带有软叶片的微型顺风涡轮发电机的研制

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As there are frequent needs to install a micro wind turbine generator in a residential area, we have developed such a downwind-type turbine rotor having the following specifications: The rotor has the tip diameter of 1.5 m and three two-dimensional NACA0018 blades of 0.15 m chord whose material is light, soft and pliable foam plastic for perfect safety. From the wind tunnel test under the wind speed less than 14 m/s, it is clarified that the downwind turbine generator having soft blades has the low noise and the self-output-control characteristics, which are regarded as favorable for its actual operation. The latter feature is primarily attributed to bending and torsional elastic-deformation of the soft blade. The remarkable aerodynamic performances are summarized in this paper.
机译：由于经常需要在住宅区安装微型风力发电机，因此我们开发了一种具有以下规格的顺风型涡轮转子：转子的叶尖直径为1.5 m，三个二维NACA0018叶片为0.15 m和弦，其材料为轻巧，柔软且柔软的泡沫塑料，具有完美的安全性。从风速小于14m / s的风洞试验中可以看出，具有软叶片的顺风涡轮发电机具有低噪音和自输出控制特性，被认为有利于其实际操作。后一特征主要归因于软刀片的弯曲和扭转弹性变形。本文总结了出色的空气动力学性能。

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