Device for measuring hydrodynamic force interference among multiple ships

Abstract

A device for measuring hydrodynamic force interference among multiple ships comprises two vertical first guide rails and a vertical second guide rail which are fixedly installed on a trailer. A dragging mechanism with a first ship model crosses the two first guide rails, and a dragging mechanism with a second ship model is arranged on the second guide rail. A transverse moving mechanism driven by a ball screw pair, a rotation moving mechanism driven by a worm gear and a lifting mechanism are arranged on the dragging mechanism of the first ship model and are used for driving the first ship model to conduct transverse movement, rotating movement and lifting movement. The dragging mechanism of the second ship model comprises a vertical moving mechanism and a lifting mechanism which are driven by the motor and are used for driving the second ship model to conduct vertical movement and lifting movement on the guide rail. The two dragging mechanisms are both provided with a sensor for measuring the hydrodynamic force performance. The device can achieve measurement of the hydrodynamic performance when multiple ships sail at different relative positions at identical speed or different speeds and is used for comprehensive study of hydrodynamic force interference among the multiple ships.

Description

technical field [0001] The invention relates to the technical field of hydrodynamic performance testing, in particular to a measuring device for measuring hydrodynamic performance in a model test of hydrodynamic interference research between two or more ships sailing adjacent to each other. Background technique [0002] Interference will occur between two or more ships sailing adjacent to each other, which will affect their respective hydrodynamic performance. In still water, the flow field inside the two or more ships will interfere, resulting in interaction force, which may cause the hull to The lateral movement endangers the safe navigation of the hull. In the waves, the hull will produce swaying motion and spread radiation waves. When the radiation waves encounter other ships, they will generate diffraction waves. The radiation waves and diffraction waves of each ship are transmitted to the adjacent hull and generate The new excitation effect will affect the swaying moti...

AI Technical Summary

Problems solved by technology

The model test of the towed tank is the main method for the study of hydrodynamic interference between multiple ships. The existing model tests have one-sided and limited research on the performance of hydrodynamic interference. However, it cannot fully simulate the hydrodynamic interference performance test of multiple ships sailing at different relative positions and at different speeds during sailing.

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