Drag performance testing method for sailing ship in periglacial region of actual water area

Abstract

The invention relates to a drag performance testing method for a sailing ship in a periglacial region of an actual water area. The method includes 1, selecting a test sea area; 2, defining a channel with buoy balls and interception fishing nets and placing model ice in the channel; 3, placing a test ice navigation ship model in the channel and dragging the test ice navigation ship model to move forward in the channel through dragging a steel cable by a first auxiliary ship and a second auxiliary ship which are both disposed outside the channel; 4, measuring forces on the dragging steel cable,an included angle between the dragging steel cable and the first auxiliary ship and an included angle between the dragging steel cable and the second auxiliary ship, and calculating the resistance received by the test ice navigation ship model when advancing in the channel. According to the invention, limitations on size and navigation speed of ship models in a traditional dragging pool can be eliminated and an environment with interaction of real irregular waves and floating ice can be simulated, so that testing of drag performance of the sailing ship in the periglacial region can be realized.

Description

technical field [0001] The invention relates to a test method for the resistance performance of a ship, in particular to a test method for the resistance performance of a ship sailing in the ice margin area in actual waters. Background technique [0002] In recent years, with the increase of global temperature, the opening of the Arctic waterway has become possible, and the Arctic waterway has extremely important significance in terms of resources, politics, military, etc., followed by the polar region between many countries Disputes have become increasingly serious, and polar issues have become an important part of my country's efforts to build a maritime power. However, due to the complexity of the polar environment and the variability of its ecological environment, human activities in the polar regions must rely on polar ships and marine engineering structures with special properties. With the gradual expansion of the polar ice margin, the performance of ships when naviga...

AI Technical Summary

Problems solved by technology

[0003] Usually, when working in a complex environment where waves and ice floes interact together, it is carried out in a towed pool with wave-making capabilities, because most ice water pools lack wave-making equipment, and it is difficult to simulate such complex conditions

However, traditional towing pools have relatively large restrictions on the size and towing speed of the ship model, and regular waves or irregular waves can be obtained by inputting relevant parameters in the wave maker, but the waves produced by the wave maker are all single Directed, pseudo-random waves

Moreover, the irregular waves created by the pool wave machine are all based on the principle of linear superposition, and are limited to the linear characteristics of the waves.

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