Device for simulating wind load in ship model test

Abstract

The invention provides a device for simulating wind load in a ship model test. The device includes a closed-loop servo system module and an automatic control module, wherein the closed-loop servo system module and the automatic control module are arranged on a ship model, the closed-loop servo system module includes a deep immersion full-revolving propeller and a deep immersion side-thrust propeller, and the automatic control module includes a six-degree-of-freedom optical motion measuring device, a thrust distribution module, a wind load database and a thrust-rotation speed curve storage unit. According to the six-degree-of-freedom optical motion measuring device, the wind load database is queried through a thrust-rotation speed curve stored in the thrust-rotation speed curve storage unit according to ship speed, heading angle and set wind speed, so that wind load borne by the ship model can be obtained, and therefore, the thrusts and angles of the deep immersion full-revolving propeller and the deep immersion side-thrust propeller can be obtained through the calculation of the thrust distribution module. With the device of the invention adopted, wide range coverage of a wind field can be realized, and the problems of unevenness and attenuation caused by traditional wind making can be solved.

Description

technical field [0001] The invention relates to marine engineering, in particular to a device for simulating wind loads in ship model tests. Background technique [0002] As one of the important marine environmental conditions, wind is an important test parameter that needs to be simulated in the ship model test. At present, the simulation of wind in ocean engineering is usually realized by using one or more groups of wind turbines fixed on the shore or on a trailer to form a wind field in a certain area. Analyzing this simulation technology, it is found that its shortcomings lie in: [0003] 1. The coverage of the wind field is small, and it is difficult to cover the entire pool area; [0004] 2. The wind field is uneven and there is an attenuation problem; [0005] 3. When the fan is installed on a trailer, since the movement of the trailer will drive the fan to move, thus affecting the distribution of the wind field, the trailer cannot be moved at will, which brings a ...

AI Technical Summary

Problems solved by technology

It aims at simulating wind loads more accurately in ship model tests, so as to solve the problems of limited wind-generating capacity, uneven wind field, limited coverage, poor flexibility, and large power consumption in the test.

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