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Micro floating raft array skin having functions of reducing resistance and noise

A skin and floating raft technology, which is applied to ships, special-purpose ships, underwater ships, etc., can solve problems such as the inability to achieve fluid drag reduction and noise reduction.

Active Publication Date: 2018-09-21
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the fluid drag reduction and noise reduction of underwater vehicles mainly adopt bionic flexible surface, surface covering layer and anechoic tile technology, but these two aspects cannot be well balanced, that is, the structure with better fluid drag reduction cannot be compared Good noise reduction; structures with good sound concealment effects (such as noise reduction tiles) cannot achieve fluid drag reduction well

Method used

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  • Micro floating raft array skin having functions of reducing resistance and noise
  • Micro floating raft array skin having functions of reducing resistance and noise
  • Micro floating raft array skin having functions of reducing resistance and noise

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, a micro-floating raft array skin with drag and noise reduction functions according to the present invention includes an inner skin 1, an outer skin 2 and an intermediate layer composed of several micro-floating raft array units 3. The layer structure is fixed between the inner skin and the outer skin, and the skin composed of the three covers the surface of the vehicle.

[0022] Such as figure 1 , figure 2 As shown, the inner skin 1 and the outer skin 2 are thin, flexible, drag-reducing and noise-reducing walls with the same material structure, and can be made of organic polymer materials, such as polyurethane film with high toughness and light texture. Close to water, it can not only support the whole skin structure, but also produce gradient material effect on the incidence of external sound wav...

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Abstract

The invention provides a micro floating raft array skin having functions of reducing resistance and noise. Through the adoption of the micro floating raft array skin disclosed by the invention, the functions of reducing fluid resistance and noise of an underwater vehicle can be realized. The micro floating raft array skin comprises an inner layer skin, an outer layer skin, and an intermediate layer, wherein the inner layer skin and the outer layer skin are made of organic polymer materials; and the intermediate layer is formed by a plurality of micro floating raft array units through an arraymanner, and is fixed between the thin flexible inner layer skin and the thin flexible outer layer skin through super glue to form the micro floating raft array skin having the functions of reducing fluid resistance and noise.

Description

technical field [0001] The invention relates to an underwater vehicle skin, in particular to a micro-floating raft array skin with the function of reducing drag and noise, enabling the underwater vehicle to realize the function of fluid drag reduction and noise reduction. Background technique [0002] Underwater vehicles involved in military operations need to have higher speed and stealth performance. The speed mainly depends on reducing fluid resistance, and the stealth performance relies on reducing noise to avoid passive sonar and absorbing sound waves to avoid active sonar. [0003] In order to reduce the noise of the underwater vehicle itself, a floating raft vibration reduction system is often used, which can be used for vibration and noise reduction of the power plant in the ship cabin, and can greatly suppress the transmission of vibration energy in the system. In order to reduce fluid resistance, bionic flexible surface fluid drag reduction and noise reduction tech...

Claims

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Application Information

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IPC IPC(8): B63G8/34
CPCB63G8/34
Inventor 刘少刚陈璐赵丹盛鹏高春晓李征远冯立锋石新新赵跃超张春杰
Owner HARBIN ENG UNIV
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