Device for simulating wind current load in ship model test

Abstract

The invention provides a device for simulating the wind current load in a ship model test. The device comprises 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 comprises a deep-immersion full-swiveling propeller and a deep-immersion lateral-pushing propeller; the automatic control module comprises a six-degree-of-freedom optical motion measurement device, a thrust distribution module, a wind current load database and a thrust-rotating speed curve storage unit; and the six-degree-of-freedom optical motion measurement device is arranged for querying the wind current load database by virtue of a thrust-rotating speed curve stored in the thrust-rotating speed curve storage unit according to a ship speed, a heading angle, a set wind speed and a set flow rate so as to obtain the wind current load on the ship model, thereby calculating thrusts and angles of the deep-immersion full-swiveling propeller and the deep-immersion lateral-pushing propeller by virtue of the thrust distribution module. The device provided by the invention can realize large-scale coverage of a wind field and a flow field, and the problems that the traditional wind generation and flow generation are non-uniform and attenuated are solved.

Description

technical field [0001] The invention relates to marine engineering, in particular to a device for simulating wind load in ship model tests. Background technique [0002] As one of the important marine environmental conditions, wind and current are important test parameters that need to be simulated in ship model tests. At present, the simulation of convection in marine engineering is usually realized by using one or more sets of fans and flow tubes fixed on the shore or on a trailer to form a wind field and a flow field in a certain area. Analyzing this simulation technology, it is found that its shortcomings lie in: [0003] 1. The wind-making and flow-making equipment has limited wind-making and flow-making capabilities, and cannot simulate the situation of high wind speed and flow velocity; [0004] 2. The wind field and flow field produced by the traditional method have problems of unevenness and attenuation, which reduces the accuracy of the test; [0005] 3. The cov...

AI Technical Summary

Problems solved by technology

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

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