Underwater energy dissipation and seismic mitigation device with double umbrella surfaces symmetrical in horizontal direction

Abstract

The invention provides an underwater energy dissipation and seismic mitigation device with double umbrella surfaces symmetrical in the horizontal direction, and belongs to the technical field of structural vibration control. The underwater energy dissipation and seismic mitigation device is mainly applied to vibration control of an ocean platform. The underwater energy dissipation and seismic mitigation device comprises a piston rod, a damping cylinder body, a cover plate, a piston, a damping medium, a hinge device, a strut fixing device, a strut and a square blade plate. The energy dissipation and seismic mitigation device is provided with a plurality of energy dissipation systems, when an external structure connected with the energy dissipation and seismic mitigation device vibrates horizontally, the damping cylinder body is fixed, so that when the piston rod moves, the strut fixing device is driven to move, so that the strut is driven to move, the square blade plate is driven by thestrut to slide in water, and certain damping force is provided through counter-acting force provided by the water. In addition, the external structure vibrates to drive the piston rod of the device to axially move, so that the piston is driven to slide in the cylinder body, and viscous damping force is generated. The underwater energy dissipation and seismic mitigation device has good underwaterenergy dissipation capacity, and is flexible and efficient.

Description

technical field [0001] The invention relates to an underwater energy-dissipating shock-absorbing device with horizontally symmetrical double umbrella surfaces, which is mainly used in the vibration control of ocean platforms and belongs to the technical field of structural vibration control. Background technique [0002] At present, with the rapid development of the global economy and the rapid expansion of the world's population, people's demand for energy is also increasing. In order to adapt to social and economic development and people's demand for energy, all countries in the world have turned their attention to the ocean for energy development. The development of marine resources is inseparable from the construction of marine platforms. Due to the harsh working environment at sea, they are often affected by various disasters such as wind, waves, tidal currents, and earthquakes. Therefore, establishing a stable offshore working platform is the basis for marine resource ...

AI Technical Summary

Problems solved by technology

For large flexible structures such as offshore platforms, large vibration responses may be generated under the coupling of dynamic loads such as wind, waves, and currents, and the failure or loss of functions of the offshore platform structure will cause huge economic losses.

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