Experiment device for simulating power response of vertical pipe array under action of uniform flow

Abstract

The invention relates to an experiment device for simulating the power response of a vertical pipe array under the action of uniform flow, and the device comprises a deep sea vertical pipe group module. The top of the deep sea vertical pipe group module is connected with a top multi-pipe relative position adjustment module through a vertical end part adjustment module, and the bottom of the deep sea vertical pipe group module is connected with a bottom multi-pipe relative position adjustment module through the vertical end part adjustment module. The top multi-pipe relative position adjustment module, the bottom multi-pipe relative position adjustment module, the vertical end part adjustment module and the deep sea vertical pipe group module jointly form a vertical pipe array system. The top of the vertical pipe array system is connected with a top movement module, and the bottom of the vertical pipe array system is connected with a bottom movement module. A measurement analysis module is disposed on the top movement module. The device is simple in structure, can achieve the quick and convenient change of the working conditions in an experiment process, is high in flexibility, is easy to operate, is precise in measurement, can truly simulate a condition that a vertical pipe array is disposed in a uniform flow field environment, and analyze the vortex-induced vibration response of the vertical pipe array under the action of uniform flow.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to an experimental device for simulating the dynamic response of a riser array under the action of a uniform flow. Background technique [0002] For large offshore platforms such as oil exploration platforms, the working riser is a slender and flexible structure, which will generate vortex-induced vibration under the action of ocean currents. The structural fatigue or possible resonance caused by vibration will not only accelerate the aging of working devices, but also seriously affect the The safety of marine structures poses a great threat. [0003] For large offshore platforms, there are usually more than one working riser, such as the four columns of the semi-submersible platform, and the many tension legs of the tension leg platform, so there is a situation where multiple working risers interfere with each other. Due to the mutual influence between risers, the mecha...

AI Technical Summary

Problems solved by technology

2. Compared with the actual situation, the working conditions are very single, and it is impossible to accurately predict the vortex-induced vibration of the working riser in the actual situation.

3. The large error in the riser strain measurement leads to large deviations in subsequent calculations

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