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Naval vessel underwater explosion bubble protection device and protection method

A technology for underwater explosions and protection devices, which is applied to ships, attack devices, defense equipment, etc. It can solve the problems of high investment cost, general operation stability, general protection efficiency and protection effect, and achieve low investment cost and ensure protection Efficiency and protection effect, effect of improving efficiency and stability

Active Publication Date: 2022-05-10
WUXI DONGZHOU MARINE EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of naval vessel underwater explosion bubble protection device and protection method, to solve the existing gas effect type naval vessel underwater that proposes in the above-mentioned background technology. The lower explosion bubble protection device has high investment cost, general operation stability, general protection efficiency and protection effect technical problems

Method used

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  • Naval vessel underwater explosion bubble protection device and protection method
  • Naval vessel underwater explosion bubble protection device and protection method
  • Naval vessel underwater explosion bubble protection device and protection method

Examples

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Embodiment Construction

[0020] The following examples are used to further illustrate the content of the present invention, but do not limit the application of the present invention.

[0021] see Figure 1~4 , which shows an underwater explosion bubble protection device for ships, including a strip-shaped hydrofoil 1, the hydrofoil 1 is a hollow member (a hollow cavity with a thick wall inside), and the inner diameter of the hydrofoil 1 is pierced with a The rotating shaft 11 for adjusting the angle of attack of the hydrofoil 1 (to make the hydrofoil 1 rotate with the rotating shaft 11 as the axis), the upper end of the hydrofoil 1 is sealed and communicated with the hydrofoil strut 6, and the hydrofoil strut 6 is symmetrically arranged on the left and right and is a hollow member (inside Hollow cavity with thick wall), meanwhile, the hydrofoil struts 6 are respectively provided with stroke control mechanisms that cooperate with the rotating shaft 11, and the stroke control mechanisms are composed of ...

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Abstract

The invention discloses a naval vessel underwater explosion bubble protection device and a protection method.The protection device comprises a hydrofoil strut of a hollow structure and a hydrofoil, a rotating shaft used for adjusting the attack angle of the hydrofoil is arranged in the hydrofoil in the radial direction in a penetrating mode, the hydrofoil strut is fixed to the bottom of a naval vessel head, and an air injection mechanism matched with the hydrofoil is arranged at the bottom of the naval vessel head; the lower ends of the two hydrofoil supporting columns are communicated with the upper ends of the hydrofoils in a sealed mode, and stroke control mechanisms matched with the rotating shafts in a linkage mode are arranged in the hydrofoil supporting columns correspondingly. According to the invention, super-cavitation bubbles and a moving cavitation field can be rapidly generated and are enabled to generate coupling response with underwater explosion bubbles, so that the jet flow and migration directions of the underwater explosion bubbles are changed, the damage effect of bubble load on a naval vessel is greatly reduced, the input cost is low, and the operation is simple. And the protection efficiency and the protection effect of bubble impact resistance of the naval vessel structure are greatly improved.

Description

technical field [0001] The invention relates to the technical field of protection of ships and marine structures, in particular to an underwater explosion bubble protection device and protection method for ships based on the coupled pulsation effect of underwater explosion bubbles, supercavitation bubbles and moving cavitation fields at the bottom of the ship . Background technique [0002] The underwater explosion bubble load often causes impact damage to the structure of the ship, and is an important factor causing ship failure and damage in war. In recent years, for the damage and protection of warships under underwater explosion bubble loads at home and abroad, measures such as increasing the thickness of the hull plate and setting up explosion-proof cabins to enhance structural strength, or attaching low-density elastic materials to the surface of the structure to reduce bubble impact loads are generally adopted. However, the above measures often require a lot of cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63G13/00
CPCB63G13/00Y02T70/10
Inventor 姜明佐李童王加夏刘昆
Owner WUXI DONGZHOU MARINE EQUIP CO LTD
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