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1. 发明授权

US06672837B1 Wind turbine with oscillation damping means 有权
标题翻译：具有振动阻尼装置的风力发电机组
公开(公告)号：US06672837B1
公开(公告)日：2004-01-06
申请号：US09701493
申请日：2001-06-13
申请人： Herman F. Veldkamp , Lars Risager , Flemming Rasmussen
发明人： Herman F. Veldkamp , Lars Risager , Flemming Rasmussen
IPC分类号： F04D2900
CPC分类号： F16F7/10 , F03D80/00 , F05B2210/14 , F05B2240/14 , F05B2240/912 , F05B2260/96 , F05B2260/964 , Y02E10/726 , Y02E10/728 , Y10S416/50
摘要： The present invention relates to a wind turbine with oscillation damping means provided at the nacelle and being designed for damping edgewise oscillations of the rotor blades in the rotational plane of the rotor. In particular, the invention relates to a wind turbine in which the oscillation damping means are provided at the end of the nacelle being opposite to the end from which the rotor extends and are designed for damping oscillations of the first eigenfrequency of the rotor blades in the rotational plane, especially oscillations being perpendicular to the rotational axis of the rotor. The damping means are advantageously designed to dampen oscillations of a frequency being substantially equal to the first eigenfrequency in the rotational plane of the at least one blade minus the frequency of rotation of the rotor. The oscillation damping means of the present invention are preferably capable of damping oscillations being substantially horizontal and substantially perpendicular to the rotation axis.
摘要翻译：本发明涉及一种风力涡轮机，其具有设置在机舱处的振动阻尼装置，并被设计成用于在转子的旋转平面中阻尼转子叶片的沿边振荡。特别地，本发明涉及一种风力涡轮机，其中振动阻尼装置设置在机舱的端部处，其与转子延伸的端部相对，并且被设计成用于阻尼转子叶片的第一本征频率的振荡旋转平面，特别是垂直于转子旋转轴线的振荡。阻尼装置有利地被设计成抑制基本上等于至少一个叶片的旋转平面中的第一本征频率的频率的振荡减去转子的旋转频率的振荡。本发明的振动阻尼装置优选能够阻尼基本上水平并基本上垂直于旋转轴线的振荡。

2. 发明授权

US06626642B1 Wind turbine blade with u-shaped oscillation damping means 有权
标题翻译：具有u形振动阻尼装置的风力发电机叶片
公开(公告)号：US06626642B1
公开(公告)日：2003-09-30
申请号：US09744560
申请日：2001-07-18
申请人： Herman F. Veldkamp
发明人： Herman F. Veldkamp
IPC分类号： F03D106
CPC分类号： F16F7/10 , F03D80/00 , F05B2260/96 , F16F15/023 , Y02E10/721
摘要： A wind turbine blade has an oscillation damper provided in the blade for damping oscillations of the blade, in particular edgewise oscillations of the blade in the rotational plane of a rotor on which the blade is mounted. The damper comprises a U-shaped cavity in which a saturated solution of sodium chloride in water may oscillate in counter-phase with the oscillations of the blade. The upper end of the arms of the U-shaped cavity are connected with a passage way so that an O-shaped cavity is provided. The cavity may be tuned to dampen oscillations of the first natural edgewise frequency or the second natural edgewise frequency of the blade or the damper may comprise both types of dampers. Furthermore, blades comprising dampers having a cylindrical element may roll in a box in the blade and dampers can have a resiliently suspended pendulum.
摘要翻译：风力涡轮机叶片具有设置在叶片中的振动阻尼器，用于阻尼叶片的振动，特别是叶片在其上安装有叶片的转子的旋转平面中的沿边振荡。阻尼器包括U形腔，其中氯化钠在水中的饱和溶液可以与叶片的振荡相反地摆动。 U形腔的臂的上端与通道连接，从而提供O形腔。空腔可以调节以抑制叶片的第一自然边缘频率或第二自然边缘频率的振荡，或者阻尼器可以包括两种类型的阻尼器。此外，包括具有圆柱形元件的阻尼器的叶片可以在叶片中的箱中滚动，并且阻尼器可以具有弹性悬挂的摆锤。

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