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基于调谐质量阻尼器和颗粒阻尼器的工作原理,提出了一种适用于风力发电塔架振动控制的盆式调谐/颗粒阻尼器.为了研究阻尼器的减振效果,以某1.5 MW陆上风机为样机,设计、制作并分阶段将阻尼器安装在塔顶平台.在塔顶布置加速度传感器测得急停工况和正常运行工况下风力发电塔顶部的动力响应.采用峰值法得到急停工况下塔架的一阶模态阻尼比,采用散点法得到运行工况下阻尼器的减振效率.实测分析结果表明,该阻尼器不仅可以有效增加急停工况下塔架垂直主轴方向的一阶模态阻尼比,还可有效减小大风条件下风机运行工况下塔架的振动.
Based on the working principle of tuned mass damper and particle damper, a basin tuning / particle damper suitable for vibration control of wind power tower was proposed.In order to study the damping effect of damper, a 1.5 MW onshore wind turbine For the prototype, the damper was designed, fabricated and phased in. The acceleration sensor on the top of the tower was used to measure the dynamic response of the top of the tower under the emergency stop condition and the normal operation condition. The peak method was used to obtain the emergency stop The first-order modal damping ratio of the tower under operating conditions is obtained by the scatter-point method. The measured results show that the damper can not only effectively increase the tower vertical spindle Direction of the first-order modal damping ratio, but also can effectively reduce wind turbine tower operating conditions under vibration conditions.