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首页> 外文期刊>Indian journal of power and river valley development >Failure mechanism and vibration control for tower tube of wind generator under extreme climate
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Failure mechanism and vibration control for tower tube of wind generator under extreme climate

机译:极端气候下风力发电机塔管故障机理及振动控制

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摘要

The wind power tower is sensitive to wind loads with high aspect ratio. The failure characteristics and failure mechanism of the wind turbine tower structure are analyzed under the extreme climate conditions. Based on the principle of tuned mass damper theory, the suspension damper application in wind turbine tower structure is designed. The appropriate typhoon wind speed spectrum is selected. With the finite element software, the 3D model for tower structure is established and the control effect of the damper structure is analyzed. The maximum displacement and acceleration of the structure under extreme climatic conditions are greatly reduced after the suspension tuned mass damper being given. The efficiency of vibration reduction is 80.26% and 54% respectively. The results show that the response of displacement and acceleration for the damper are obviously decreased, which is beneficial to the safety of the tower structure under the extreme climate condition.
机译:风电塔对具有高纵横比的风力负荷敏感。在极端气候条件下分析了风力涡轮机塔结构的故障特性和故障机理。基于调谐质量阻尼理论的原理,设计了风力涡轮机塔结构的悬架阻尼器应用。选择适当的台风风速谱。利用有限元软件,建立了塔结构的3D模型,分析了阻尼器结构的控制效果。在给出悬架调谐质量阻尼器之后,在极端气候条件下,结构下的最大位移和加速度大大降低。减振效率分别为80.26%和54%。结果表明,阻尼器的位移和加速度的响应显然降低,这有利于极端气候条件下塔结构的安全性。

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