Petal-shaped underwater energy dissipation and vibration reduction device suitable for ocean floating structure

Abstract

The invention provides a petal-shaped underwater energy dissipation and vibration reduction device suitable for an ocean floating structure, and belongs to the technical field of structural vibrationcontrol. The energy dissipation and vibration reduction device comprises a rack rod, a gear, a ball bearing, a rod shaft, a stand column, a blade plate and a bottom floating plate. A rack rod of the device is connected to an upper ocean floating structure, and when the structure vibrates up and down, the rack rod also axially moves along with the structure to drive gears arranged on the peripheryto rotate; due to the fact that each gear is connected with the corresponding blade plate, when the gears rotate, the blade plates distributed in the petal shape start to slide in water, the energy dissipation and vibration reduction effects are achieved through counter-acting force given by water, and vibration of an upper structure is reduced. Meanwhile, different energy consumption effects canbe achieved by adjusting the sizes of the gears and the areas of the blade plates, and then different working environments and design requirements are met. The underwater energy dissipation and vibration reduction device is novel in structure, safe and flexible, and is an efficient underwater energy dissipation and vibration reduction device.

Description

technical field [0001] The invention relates to a petal-shaped underwater energy consumption and vibration reduction device suitable for marine floating structures, which is mainly used in the vibration control of marine floating structures and belongs to the technical field of structural vibration control. Background technique [0002] In order to adapt to the development of the country and the supply of energy, more and more countries have begun to develop offshore energy. Moreover, with the advancement of technology, the development of marine resources has gradually developed from the development of shallow sea resources to the development of deep sea resources, but this has also brought greater difficulties to the construction of resource mining structures. Therefore, in order to meet the challenges of deepwater drilling and oil production, several types of floating structures suitable for deepwater operations have been developed: semi-submersible platforms, tension leg ...

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Problems solved by technology

[0003] Marine floating structures are located in the deep sea with harsh environments, so they are often affected by loads such as earthquakes, waves, and winds, which cause vibrations of marine floating structures and affect the ability to work normally

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