Self-propelled ship model test device applicable to arbitrary wave direction and application method for the same

Abstract

The invention relates to a self-propelled ship model test device suitable for any wave direction and a use method thereof, belonging to the technical field of wave load testing of ships and marine engineering. The invention solves the technical problem that accurate test data cannot be obtained in the self-propelled ship model test in any wave direction at present. The present invention includes track I, track II, track III, a universal base and an elastic device. The universal base is arranged at the bottom end of track III, two tracks of track III are arranged in parallel, two tracks of track II are arranged in parallel, track I and track II Vertical and in the same plane, track III is perpendicular to the plane where track I and track II are located, track III is connected to track I through a sliding device, both ends of track I are connected to two tracks II through sliding devices, and the two ends of track I are connected. The sides are respectively provided with elastic devices, one end of the elastic device is connected with the end of the track I, and the other end is connected with the track II. The invention is used for self-propelled ship model test.

Description

technical field [0001] The invention relates to a self-propelled ship model test device applicable to any wave direction and a use method thereof, belonging to the technical field of ship and ocean engineering wave load testing. Background technique [0002] According to different propulsion methods, ship model tests can be roughly divided into two types: towing and self-propelled. In the towing test, the speed of the ship model is guaranteed by the trailer in the towing pool. The trailer is equipped with a vehicle speed control system to ensure that the trailer runs at the predetermined speed, so the sailing state of the hull in the waves cannot be reflected, which will affect the test results. come error. At present, studies have pointed out that the towing test method will increase the high-frequency components in the load response, while the self-propulsion test can truly reflect the load characteristics in the actual sailing state and predict the propulsion performance...

AI Technical Summary

Problems solved by technology

[0003] Most of the self-propulsion is head sea, but the direction of the waves encountered in the actual sea conditions is often random. At present, there are few experimental data of oblique waves in the literature, which cannot provide experimental basis for the theoretical results of oblique waves, because the biggest problem of oblique wave experiments is that The yaw of the ship model, strictly limiting the yaw will affect the accuracy of the test data, and violate the purpose of the self-propulsion test method

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