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Single-pile offshore floating fan vibration reduction control structure

A control structure, floating technology, applied in the direction of vibration suppression adjustment, non-rotation vibration suppression, installation/support of wind turbine configuration, etc. Increase the overall cost of floating fans and other issues

Pending Publication Date: 2021-09-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Offshore floating wind turbines adopt the form of floating foundation, and anchor chains are used to connect the foundation platform of floating wind turbines and the seabed. The offshore environment is complex, and floating wind turbines will be subject to various complex loads such as wind loads, wave loads, and ocean currents, and their coupling effects. It poses a huge challenge to the stability of floating wind turbines
Complex load conditions will increase the vibration of the floating wind turbine, and its vibration effect will affect the power generation and safety of the floating wind turbine, and will greatly increase the overall cost of the floating wind turbine

Method used

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  • Single-pile offshore floating fan vibration reduction control structure
  • Single-pile offshore floating fan vibration reduction control structure
  • Single-pile offshore floating fan vibration reduction control structure

Examples

Experimental program
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Effect test

Embodiment

[0031] Such as Figure 1-4 As shown, the present invention provides a single-pile offshore floating wind turbine vibration reduction control structure, including a tuned mass damper 14, a lattice steel truss 1, an outer ring steel truss 13, steel strands 3, steel supports and protective devices, The lattice steel truss 1 is connected to the outside of the foundation platform 7 of the floating wind turbine, and its lower part is provided with a lattice steel truss steel support 6, and the four lattice steel trusses 1 are connected by ring steel trusses 13 to form a whole, and each lattice steel truss 1 The tuning mass damper 14 connected to the foundation platform 7 of the floating wind turbine is installed inside, the tower frame 8 of the floating wind turbine and the lattice steel truss 1 are connected through the steel strand 3, and the steel support 12 of the ring steel truss is connected to the foundation platform 7 of the floating wind turbine and External ring steel trus...

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Abstract

The invention relates to a single-pile offshore floating fan vibration reduction control structure. The structure comprises an annular steel truss arranged outside a floating fan foundation platform and a plurality of lattice steel trusses integrated with the annular steel truss and used for being connected with a floating fan tower in the center, wherein each lattice steel truss is connected with the upper portion of the floating fan tower through a steel strand, the bottom of each lattice steel truss is connected with the lower portion of the floating fan foundation platform through a lattice steel truss steel support, the annular steel truss is connected with the upper portion of the floating fan foundation platform through an annular steel truss steel support, and a tuned mass damper is arranged in each lattice steel truss. Compared with the prior art, the structure has the advantages that structural vibration is reduced, safety and stability are high, annular multi-directional control is achieved, and wave load impact is reduced.

Description

technical field [0001] The invention relates to the technical field of floating offshore wind power, in particular to a single-pile offshore floating wind turbine vibration reduction control structure. Background technique [0002] Offshore floating wind turbines adopt the form of floating foundation, and anchor chains are used to connect the foundation platform of floating wind turbines and the seabed. The offshore environment is complex, and floating wind turbines will be subject to various complex loads such as wind loads, wave loads, and ocean currents, and their coupling effects. It poses a huge challenge to the stability of floating wind turbines. Complex load conditions will increase the vibration of the floating wind turbine, and its vibration effect will affect the power generation and safety of the floating wind turbine, and will greatly increase the overall cost of the floating wind turbine. Controlling the floating fan can effectively reduce the vibration of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/25F03D13/20F16F15/02F16F15/067
CPCF03D13/25F03D13/22F16F15/022F16F15/067Y02E10/727Y02E10/72
Inventor 彭勇波岳金山陈建兵李杰
Owner TONGJI UNIV
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