Double-guide-rail tuned mass damper (TMD) energy-consuming vibration damper for wind power generator unit

Abstract

The invention relates to a double-guide-rail tuned mass damper (TMD) energy-consuming vibration damper for a wind power generator unit and belongs to the technical field of structural vibration reduction. The double-guide-rail TMD energy-consuming vibration damper comprises the wind power generator unit, a cross sliding platform, a TMD and springs, wherein the wind power generator unit is composedof a foundation, a tower column and cabin and blades; the lower end of the tower column is fixed to the foundation, and the upper end of the tower column is fixed to a Y-axis sliding platform base through a flange; the cabin and blades are fixed to a sliding block of an X-axis sliding platform through a flange; the TMD and the two springs are arranged along slide rails of the cross sliding platform and are connected with the sliding block through bolts and connected with an end steel plate of the slide rails through screws. Through the vertically perpendicular bidirectional guide rails on thecross sliding platform, the TMD device can meet the requirement for control over vibration reduction of a tower in the whole plane. Moreover the double-guide-rail TMD device does not be additionallyprovided with mass blocks, the vibration of the tower in the plane is restricted through the weight of the upper structure of the tower. The double-guide-rail TMD energy-consuming vibration damper issimple in structure, obvious in energy-consuming effect and capable of being widely applied to vibration reduction of a wind power generation tower structure.

Description

technical field [0001] The invention relates to the technical field of structural vibration reduction, in particular to a double guide rail TMD energy consumption vibration reduction device. Background technique [0002] Due to the long-term work of wind turbines under changing natural conditions, there will be vibration problems induced by external factors such as strong wind loads and earthquakes. In addition, wind turbines are subjected to the combined effects of various loads such as aerodynamic loads, gravity loads, inertial loads, and control system loads during operation, which will also produce large vibration responses. Vibration problems affect the service life of wind turbine components to varying degrees. Phenomena such as broken blades of the unit, tower instability, excessive vibration amplitude of the nacelle, cracks in the gearbox, and generator failures occur from time to time. In addition, the main elastic vibration bodies of wind turbines are blades and t...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a new double-rail TMD energy-dissipating shock-absorbing device, which can not only solve the technical problems of energy-consuming and vibration-reducing wind power towers; The problem

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