Ocean structure fine model viscosity performance test platform

Abstract

The invention discloses an ocean structure fine model viscosity performance test platform. The ocean structure fine model viscosity performance test platform comprises a water tank with the upper portion open, a transmission rod and a multi-degree-of-freedom moving mechanism, wherein the lower end of the transmission rod can be connected with a test model and stretches into the water tank, and the multi-degree-of-freedom moving mechanism is connected to the upper end of the transmission rod and can drive the transmission rod to carry out front-back translational movement, vertical translational movement, front-back swing movement and left-right swing movement. The test platform enables the test model to simulate surging, heaving, pitching and yawing movement of a ship, and is suitable for viscosity hydrodynamic performance study of various ocean structures such as heaving plates, bilge keels, anchor chains, vertical pipes and tension legs.

Description

technical field [0001] The invention relates to the technical field of marine engineering experiments, in particular to a test platform used for experimental research on the viscous hydrodynamic performance of marine structures and the characteristics of surrounding flow fields. Background technique [0002] The viscosity of water plays an important role in the hydrodynamic response of numerous marine structures. For example, structures such as bilge strakes, anti-rolling tanks, and heave plates on the platform use the viscosity of water to restrain the movement of the hull and platform; slender members such as risers, anchor chains, and tension legs are in the water flow. Due to the viscosity of water, it is easy to generate vortex-induced vibration, which is easy to cause fatigue damage to these components. Therefore, the study of the viscous hydrodynamic performance and flow field characteristics of marine structures can effectively reveal the relevant viscous characteri...

AI Technical Summary

Problems solved by technology

The motion mechanism designed for a certain problem generally only has the motion ability of a single degree of freedom, and its use is very limited; when used in a large pool, on the one hand, because ocean engineering pools are scarce resources, the test cost of occupying a large pool for testing is relatively high. On the other hand, it is difficult to observe the flow field around the structure in the test in a large pool

The invention is a general-purpose, miniaturized test platform that can simultaneously study the viscous hydrodynamic properties of marine structures and the characteristics of the surrounding flow field. There is no similar invention publicly released in China.

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