Test device used for testing resistance reduction performance of antifouling coating

Abstract

The invention discloses a test device used for testing resistance reduction performance of an antifouling coating. The device comprises three units, respectively a resistance test box, a navigation simulation test device and a software control system. The resistance test box comprises a load bearing, a connecting shaft, a sample loading device, a torque sensor and a test tank; the connecting shaft is sequentially provided with a motor, a connector A, a torque sensor, a connector B, a load bearing and a sample loading device from the top bottom; the test tank is located below the connecting shaft; and the navigation simulation test device is composed of a plurality of independent navigation simulation test boxes, each independent navigation simulation test box is internally provided with a motor rotation drive, and the navigation simulation test box is internally provided with sea water. Through controlling changes and frequencies of factors such as the flow speed and the temperature, different turbulence states are formed, resistance changes of the energy-saving resistance-reduction coating in ship navigation simulation state can be tested, and the resistance-reduction effects of the coating can be evaluated.

Description

technical field [0001] The invention relates to a measurement experiment device, in particular to a test device for testing the resistance-reducing performance of an antifouling coating. Background technique [0002] Drag reduction performance is an important feature of energy-saving and drag-reducing antifouling paints. The current international evaluation method is mainly based on actual ship navigation experience and fuel consumption. However, the actual ship test costs are high, the test period is long, and there are many environmental factors. The evaluation of the drag reduction performance of the antifouling coating needs to be reflected by the conversion of the actual sailing power or fuel consumption of the ship, and the regional differences in the marine environment , changes in sea current velocity and temperature, and changes in the surface roughness of the coating caused by marine fouling organisms will have a greater impact on the sailing state of the ship, res...

AI Technical Summary

Problems solved by technology

However, the actual ship test costs are high, the test period is long, and there are many environmental factors. The evaluation of the drag reduction performance of the antifouling coating needs to be reflected by the conversion of the actual sailing power or fuel consumption of the ship, and the regional differences in the marine environment , changes in sea current velocity and temperature, and changes in the surface roughness of the coating caused by marine fouling organisms will have a greater impact on the ship's navigation status, resulting in uncertainty in navigation power or fuel consumption

At the same time, when the real ship test is carried out, the wave-making resistance of the ship on the water surface and the form resistance of the hull structure account for about 70% of the total resistance. When it changes, it will cover up the consequences of the drag reduction effect of the antifouling coating. This method produces uncertainty in the evaluation results of drag reduction performance of antifouling coatings

In addition, using cavitation water cylinders to test the friction resistance of new energy-saving and emission-reducing antifouling coatings is another feasible method, but this test requires high equipment conditions, the test device is huge, and the operation and maintenance costs are high. It is difficult for enterprises or laboratories to achieve

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