Ocean structure fine model viscosity performance test platform

A technology of marine structures and fine models, applied in the field of marine engineering experiments, can solve the problems of high test costs, observation of the flow field around difficult structures, and the ability to move with a single degree of freedom, so as to ensure the accuracy of motion and facilitate the characteristics of the flow field. Observation, small span effect

Inactive Publication Date: 2016-08-17
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ...

Method used

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  • Ocean structure fine model viscosity performance test platform
  • Ocean structure fine model viscosity performance test platform
  • Ocean structure fine model viscosity performance test platform

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Embodiment Construction

[0029] Figure 1 to Figure 4 A specific embodiment of the marine structure fine model viscous performance test platform of the present invention is shown, which mainly includes a water tank 7 , a transmission rod 2 and a multi-degree-of-freedom motion mechanism 1 .

[0030] The upper part of the water tank 7 is open, and a sufficient amount of test water needs to be added into it during application. The bottom of the water tank 7 is provided with a water discharge valve.

[0031] The transmission rod 2 is arranged vertically, and its lower end extends into the water tank 7 . In practical application, the lower end of the transmission rod 2 can be directly connected to the test model 4, or indirectly connected to the test model 4 through a load cell.

[0032] The multi-degree-of-freedom motion mechanism 1 is connected to the upper end of the transmission rod 2, and it can drive the transmission rod 2 to perform any one of the four movement modes of forward and backward transl...

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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...

Claims

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Application Information

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IPC IPC(8): G01N11/00G01M10/00
CPCG01N11/00G01M10/00
Inventor 寇雨丰肖龙飞王志强彭涛赵国成
Owner SHANGHAI JIAO TONG UNIV
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