Watertight boat body test model device capable of adjusting gravity center inertia with high degree of freedom

Abstract

The invention provides a watertight boat body test model device with gravity center inertia adjusted at high degree of freedom, and belongs to the technical field of hydrodynamic experiment simulation systems.In the device, a front sealed cabin is an independent sealed cabin, and an internal rib plate is bonded with a boat body model shell to form an independent sealed cavity; the boat body keel structure is a metal structure welding piece in the boat body model and is bonded with the housing of the boat body model through a rib plate; a rib plate in the middle sealed cabin is bonded with the hull model shell to form an independent sealed cavity, and the rear sealed cabin is an independent sealed cabin and is bonded with the hull model shell through a rib plate to form a sealed cavity. The boat body adopts a three-cabin independent watertight design method, so that the watertightness and the safety of the boat body model are effectively ensured; a gravity center inertia debugging structure is designed in the boat body; fastening and positioning of a counterweight structure in the model can be achieved, and the situation that the initial state of the model is affected by looseness of a counterweight system in the underwater movement process of the hull model is avoided.

Description

technical field [0001] The application belongs to the technical field of hydrodynamic experiment simulation systems, and in particular relates to a watertight hull test model device with a high degree of freedom adjustment of center of gravity inertia. Background technique [0002] With the rapid development of domestic hydrodynamic experiment simulation test technology, surface ship hydrodynamic test and aircraft forced landing test technology have been improved and perfected rapidly, and the field of hydrodynamic test is also unremittingly exploring new test methods. In the 20th century, according to the needs of coastal defense in my country, underwater submarines, detectors and other submarine equipment have also developed rapidly. The hydrodynamic test of the underwater hull model has gradually changed from the traditional open water test to the underwater approximate self-propelled test method, and the structural design method of the hull has also gradually changed fro...

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Problems solved by technology

[0003] For the current hull test model design method, the shortcomings are as follows: (1) At present, the hydrodynamic test model is mainly designed and processed in open water, and it is mainly used for fixed towing test in the hydrodynamic test process. The water resistance of the model; (2) In the design of the underwater hull, the space inside the hull is mainly considered, and the installation method of the sensor does not design the corresponding installation and debugging structure for the inertia of the center of gravity of the hull; (3) The traditional hull The model generally positions the counterweight on the bottom of the model or the side wall of the model by gluing. When the model encounters a large impact, the counterweight will fall off and vibrate, which will affect the center of gravity of the model.

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