Vibration attenuating device for large part of large offshore wind driven generator tower

A wind turbine and vibration damping device technology, applied in the installation/support of wind turbine configuration, wind turbine, wind power generation and other directions, can solve problems such as equipment failure, power amplification, structural fatigue failure, etc., to reduce equipment failure rate, The effect of damping vibration and reducing fatigue failure

Pending Publication Date: 2019-10-22
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The advantages of offshore wind power generation are becoming more and more prominent. Many sea areas rich in wind energy resources are located in cold areas. For wind farms in cold areas, wind, waves, currents, and sea ice will all cause vibrations in the structure of offshore wind turbines, especi

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  • Vibration attenuating device for large part of large offshore wind driven generator tower
  • Vibration attenuating device for large part of large offshore wind driven generator tower
  • Vibration attenuating device for large part of large offshore wind driven generator tower

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Example Embodiment

[0017] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0018] A vibration damping device for the upper part of the tower of a large offshore wind generator is installed in the middle of the tower of the wind turbine, 12 meters from the top of the tower of the wind turbine.

[0019] Such as figure 2 , 3 Shown includes upper connecting steel plate 2, flexible vibration isolation support 6, six viscous dampers 5, twelve spherical hinges 4, several bolts a3 and bolts b7, upper tower tube of wind turbine 8, lower connecting steel plate 10. And the lower tower 11 of the wind generator. The lower connecting steel plate 10 is installed on the upper side of the lower tower 11 of the wind turbine by bolts a3; the flexible vibration isolation support 6 is a cylindrical structure, and the upper and lower ends are provided with flanges, and the flexible vibration isolation support 6 The lower flange is installed at the center of th...

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Abstract

The invention relates to a vibration attenuating device for a large part of a large offshore wind driven generator tower and belongs to the technical field of vibration control of a wind driven generator. The vibration attenuating device mounted on the upper part of a fan tower comprises an upper connecting steel plate, a bolt a, a spherical hinge, a viscous damper, a flexible vibration isolatingsupport, a bolt b, an upper tower of the wind driven generator, a manhole, a lower connecting steel plate and a lower tower of the wind driven generator. When the fan tower vibrates, the flexible vibration isolating support and the viscous damper play a vibration isolating role, and meanwhile, the vibration attenuating device can swing to a small extent at 360 degrees by taking the axis of the tower as a center to play energy-consuming and vibration-absorbing roles, so that the vibration attenuating device plays roles of protecting upper head equipment and reducing fatigue damage of the structure.

Description

technical field [0001] The invention belongs to the technical field of vibration control of wind power generators, and in particular relates to a vibration damping device on the upper part of a large offshore wind power generator tower. Background technique [0002] The advantages of offshore wind power generation are becoming more and more prominent. Many sea areas rich in wind energy resources are located in cold areas. For wind farms in cold areas, wind, waves, currents, and sea ice will all cause vibrations in the structure of offshore wind turbines, especially sea ice. When interacting with the structure, when the ice force period is close to the natural vibration period of the structure, it will cause structural resonance response, resulting in dynamic amplification phenomenon, accelerating structural fatigue failure and causing equipment failure problems. How to better control the vibration of the fan structure, reduce the fatigue failure of the tower structure and co...

Claims

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Application Information

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IPC IPC(8): F03D80/00F03D13/20
CPCF03D13/20F03D80/00F05B2260/964Y02E10/72
Inventor 张大勇王帅飞王国军岳前进乔可可孙星宇王刚
Owner DALIAN UNIV OF TECH
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