Tuning permeable vibration-damping power generation device for ultra-large floating structure

Abstract

The invention discloses a tuning permeable vibration-damping power generation device for an ultra-large floating structure.The power generation device comprises a wave-facing end portion vertically installed on the floating structure and an underwater tail portion and comprises a first permeable vibration-damping plate, a second permeable vibration-damping plate and hydraulic transmission constraint systems, the floating structure is vertically connected with the first permeable vibration-damping plate through the first hydraulic transmission constraint system, the first permeable vibration-damping plate is vertically connected with the second permeable vibration-damping plate through a second hydraulic transmission constraint system, the first permeable vibration-damping plate and the floating structure conduct relative vertical motion, the first permeable vibration-damping plate and the second permeable vibration-damping plate conduct relative vertical motion, and a generator is driven by the first hydraulic transmission constraint system and the second hydraulic transmission constraint system to generate power respectively.According to the tuning permeable vibration-damping power generation device for the ultra-large floating structure, the transmitted wave height is significantly decreased by means of interaction of the vibration-damping plates and incoming waves, the hydroelastic response of the ultra-large floating structure is reduced, wave power generation can be conducted through vertical motion of the vibration-damping devices, and the construction cost and difficulty of an ultra-large floating structure and vibration-damping power generation device integrated structure system are reduced.

Description

technical field [0001] The invention relates to the technical fields of ocean engineering and ship engineering, and in particular relates to a vibration-damping power generation device suitable for super-large floating bodies. Background technique [0002] Very Large Floating Structure (VLFS for short) is a new type of marine structure proposed by the international marine engineering community in the late 1980s. At present, the use of ocean space and the development of marine resources with the help of VLFS have become a research hotspot in the marine engineering community. A notable feature of VLFS is that the horizontal scale is much larger than the vertical scale, and the vertical bending stiffness is relatively small. The elastic deformation of the structure under the action of waves may be of the same magnitude as the rigid body displacement, or even higher. Published information shows that the various applications of VLFS, such as oil reserve bases, offshore airports, ...

AI Technical Summary

Problems solved by technology

The vertical air-permeable damping plate or square box needs to have a certain draft to achieve the required damping efficiency, and if the vertical scale is too large, it will lead to adverse effects such as elastic deformation of the air-permeable damping plate and increased drift force.

[0005] Therefore, horizontal underwater permeable vibration damping plates are increasingly used as energy dissipation devices, but at present, underwater impermeable horizontal permeable vibration damping plates are selected, and the vibration damping effect is limited, and they are installed at the wave-facing end of the VLFS. In a certain position underwater, it is rigidly connected with the floating body, and the rigidity and strength of the connecting rods are very high.

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