Multilayer tuned liquid damper for offshore wind power generation tower

Abstract

The invention relates to a multilayer tuned liquid damper for an offshore wind power generation tower. The multilayer tuned liquid damper comprises a damping cavity unit (1). A plurality of damping cavities are stacked to form the damping cavity unit (1), an end of the damping cavity unit (1) is fixed onto the wind power generation tower by the aid of a spring (10), the bottom of the damping cavity unit (1) is arranged on the ground via pulleys, partition plates are arranged in the middle of each damping cavity, the insides of the damping cavities are divided into left regions, middle regionsand right regions, the left regions and the right regions are filled with liquid (2), blocking units are fixed into the left regions and the right regions, dislocation energy dissipation can be carried out on the liquid (2) and the blocking units, liquid pipelines (8) are arranged in the middle regions, and the liquid (2) in the left regions can be communicated with the liquid (2) in the right regions via the liquid pipelines (8). Compared with the prior art, the multilayer tuned liquid damper has the advantages that the multilayer tuned liquid damper is provided with diversified energy dissipation mechanisms, and accordingly good energy dissipation effects can be realized.

Description

technical field [0001] The invention relates to the technical field of vibration control of civil structures, in particular to a multi-layer tuned liquid damper for offshore wind power towers. Background technique [0002] Since the beginning of the 21st century, energy issues have been valued by countries all over the world. Wind energy has been widely used as a clean and non-polluting renewable energy. The market for offshore wind power towers and wind turbines is also expanding. However, due to environmental excitations such as wind, waves, and earthquakes, structures such as offshore wind power towers and wind turbines are extremely prone to damage. Therefore, the treatment methods for energy consumption and vibration reduction of these structures have attracted the attention of civil engineering researchers. [0003] Although the traditional tuned liquid damper has the advantages of simple structure and easy installation, there are still some deficiencies: First, the tr...

AI Technical Summary

Problems solved by technology

However, due to environmental excitations such as wind, waves, and earthquakes, structures such as offshore wind power towers and wind turbines are extremely prone to damage. Therefore, the treatment methods for energy consumption and vibration reduction of these structures have attracted the attention of civil engineering researchers.

[0003] Although the traditional tuned liquid damper has the advantages of simple structure and easy installation, there are still some shortcomings: First, the traditional tuned liquid damper only depends on the sloshing of the liquid, which can only be changed by changing the height of the built-in liquid. The damping capacity of the damper itself; secondly, the common tuned liquid damper has only a single layer, and it will be difficult to achieve the expected damping effect when the size of the TLD itself is constrained by external conditions

Images