TMD vibration damper for ultrahigh wind turbine generator stand column

Abstract

The invention discloses a TMD vibration damper for an ultrahigh wind turbine generator stand column. The TMD vibration damper comprises four sets of top supports, a mass ring, wire rope vibration isolators, dampers, a tool support and the like. Each set of top supports includes the two top supports. The top supports are uniformly distributed on the periphery of the outer portion of a stand columnand used for fixing and suspending mass blocks. Lifting lugs are welded to the upper portion of the mass ring so that the mass blocks can be suspended more conveniently and safely through wire ropes.The TMD vibration damper is provided with the four viscose dampers which are uniformly distributed above the corresponding wire rope vibration isolators. Each viscose damper and a corresponding springsupport share a base plate and can achieve the effect of dissipating energy. When the tower type stand column sways due to external excitation, the mass ring can do motion opposite to the structure all the time and generate counter-acting force to be acted on the main structure through the design of annular machines ring TMDs so as to control vibration of the structure no matter how to sway in any direction. The TMD vibration damper achieves the purposes of energy dissipation and vibration reduction through the viscose dampers.

Description

technical field [0001] The invention relates to the field of vibration reduction control, in particular to a TMD vibration reduction device used for a column of an ultra-high wind turbine. Background technique [0002] Today, with the rapid development of the global economy and the continuous advancement of science and technology, at the same time, it is also accompanied by the increasingly scarce energy, which leads to supply shortages and environmental damage. Therefore, countries have begun to pay attention to renewable and non-polluting energy. Among all kinds of green energy, wind energy is one of the renewable energy sources with great potential. However, my country's industrial manufacturing technology is developed and wind energy resources are abundant, so more and more ultra-high wind turbines have been established. However, due to its own structural characteristics, the tower-like column of the wind turbine has high flexibility and is more sensitive to wind loads....

AI Technical Summary

Problems solved by technology

However, due to its own structural characteristics, the tower-like column of the wind turbine has high flexibility and is more sensitive to wind loads. After analysis, in the actual process of wind load, the vibration of the transverse wind, that is, the wind-induced vibration is often more than the vibration of the wind direction. It is much larger, which leads to frequent vibration of the column. Due to the long-term fatigue load of the column itself and the support, it is easy to produce fatigue cracks, which brings hidden dangers to the structural integrity of the column. How to solve the vibration problem of the column has always attracted attention.

Images