Offshore wind power jacket structure with additional viscous dampers

Abstract

The invention discloses an offshore wind power jacket structure with additional viscous dampers, and relates to the field of offshore wind power. The offshore wind power jacket structure comprises four jacket leg columns which are uniformly distributed by taking a wind turbine tower as a center, the jacket leg columns are obliquely arranged outwards from top to bottom to form a square conical structure, transition connecting sections used for supporting a wind turbine are fixed to the top ends of the jacket leg columns through inclined supporting rod pieces connected to the viscous dampers in series, and any two adjacent jacket leg columns serving as main supports are connected into a whole through a plurality of inclined supporting sets arranged in the height direction, the each inclined supporting set is composed of two inclined supporting rod pieces which are connected to the viscous dampers in series and arranged in a crossed mode in a welding mode, flange plates are arranged at one ends of the inclined supporting sets and one ends of the viscous dampers in the inclined supporting rod pieces, the ends of the viscous dampers in the inclined supporting rod pieces are connected to the viscous dampers in series, flange plates are arranged at one ends of the inclined supporting rod pieces in a casting mode, the flange plates and the flange plates are connected bolts, the other ends of the viscous dampers are piston rods, and the other ends of the viscous dampers and the other ends of the inclined supporting rod pieces are connected to the jacket leg columns in a welded mode. According to the offshore wind power jacket structure, the anti-vibration performance is obviously improved with lower cost.

Description

technical field [0001] The invention relates to the field of offshore wind power, in particular to an offshore wind power jacket structure with a viscous damper added. Background technique [0002] Nowadays, the energy crisis caused by the depletion of fossil fuels such as oil and coal continues to intensify, as well as the environmental pollution and climate change problems caused by the massive burning of fossil fuels. Renewable clean energy is an important component of energy development strategy and an important method to achieve sustainable development. According to the relevant documents released by the National Development and Reform Commission and the National Energy Administration, it is clear that by 2030, my country's new energy demand will mainly be met by clean energy. Offshore wind power has the characteristics of abundant and high-quality wind energy resources, environmental friendliness, and suitable for large-scale development. Therefore, promoting the deve...

AI Technical Summary

Problems solved by technology

At present, the common offshore wind power jacket structures in actual engineering lack clear anti-vibration design specifications and industry standards, and usually only take some countermeasures with very limited effects. However, some unpredictable catastrophes often occur in complex marine environments Behavior, only applying these measures to resist extreme environmental loads such as rare storms and strong earthquakes is undoubtedly costly and has little effect

[0003] The traditional anti-vibration method completely relies on the structure itself to absorb the vibration energy input by the load, and the components are prone to damage under the reciprocating action of the load, and the maintenance cost after vibration is high

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