Ship model hydrodynamic performance testing device and method

Abstract

The invention discloses a ship model hydrodynamic performance testing device. The ship model hydrodynamic performance testing device comprises an installation platform, a fixed platform, a movement platform, a six-component balance, universal hinges and six electric cylinders; the upper ends and the lower ends of the six electric cylinders are connected with the fixed platform and the movement platform through the universal hinges; the six-component balance is installed in the center of the equilateral triangle formed by three fulcrums; the six-component balance is in rigid connection with the gravity of a testing ship model; the fixed platform is installed on a trailer beam through the installation platform; the six electric cylinders carry out telescopic movement to enable the movement platform to shift and rotate in different directions, and therefore swaying, surging, heaving, rolling, pitching and yawing movements of the ship model are simulated. The invention further provides a ship model hydrodynamic performance testing method with the ship model hydrodynamic performance testing device utilized. The ship model hydrodynamic performance testing device and method can accurately simulate the multi-degree-of-freedom movements of the ship model, various hydrodynamic parameters of the ship model can be measured under different testing states by combination with the six-component balance, and the hydrodynamic performance of the ship model is represented comprehensively.

Description

technical field [0001] The invention relates to the technical field of ship performance testing, in particular to a device and method for testing the hydrodynamic performance of a ship model. Background technique [0002] The hydrodynamic performance test of the ship model refers to a means of determining the relevant data and information required in the study of ship model performance and ship design by using the physical model method. It can systematically estimate and evaluate the comprehensive navigation performance of the ship. Through the ship model test, not only can new ship types be studied, and various factors affecting the ship's navigation performance can be explored, but also a deeper understanding of the physical process that occurs during the ship's navigation can be obtained. It can promote the further development of theoretical engineering, continuously improve the calculation methods used in engineering calculations, improve theoretical research and enginee...

AI Technical Summary

Problems solved by technology

[0003] At present, different test devices are used for testing the hydrodynamic performance of ship models, for example, the resistance meter is used for the rapid test, the seaworthiness test is used for the seakeeping test, and the planar motion mechanism is used for the maneuverability test. Every time a test of the hydrodynamic performance of a ship model needs to be dismantled and reinstalled, the test efficiency is very low

The hydrodynamic coefficients of the ship model are mainly measured by the planar motion mechanism, but the planar motion mechanism can only make the ship model perform pure heave, pure pitch, pure sway, and pure sway motions, so the partial coupling of the ship model The hydrodynamic coefficient cannot be measured through the test, resulting in the inability to accurately evaluate the hydrodynamic performance of the ship

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