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Submarine sound absorption jacket

A technology of sound absorption and coat, which is applied in the direction of ships, underwater ships, special purpose ships, etc., can solve the problems of inability to lift and lower, and achieve the effect of improving concealment and simple structure.

Inactive Publication Date: 2010-01-20
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this patent is that the submarine moves forward by the regular left and right swing of the "skin" movable tail of the whole body, and cannot go up and down; the tail swings but the hull does not move, so there are still echoes.

Method used

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  • Submarine sound absorption jacket

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Embodiment Construction

[0010] The sound-absorbing coat of the submarine provided by the present invention is composed of a fixed base layer 4, a sound-absorbing hole layer 2, and a chemical fiber layer 1, wherein the fixed base layer 4 is made of plastic or rubber, and is fixed on the submarine shell 5 by viscose; the sound-absorbing hole layer 2 Made of rigid foam, the sound-absorbing hole layer 2 has many small holes 3 that penetrate up and down. The sound-absorbing hole layer 2 is fixed on the fixed base layer 4 by glue; the chemical fiber layer 1 is made of relatively loose chemical fiber cloth, and the chemical fiber layer 1 is fixed on the sound-absorbing hole layer 2 by glue. When the present invention is used, the vibration noise of the submarine itself and the sound waves from the outside can be absorbed by the chemical fiber layer 1, the small hole 3 and the hard foam.

[0011] The protection scope of the present invention covers all the variants described above.

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PUM

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Abstract

The invention discloses a submarine sound absorption jacket composed of a fixing basal layer, a noise reduction pore layer and a chemical fiber layer; wherein, the fixing basal layer is made of plastic or rubber and fixed on the submarine shell by glue; the noise reduction pore layer is made of rigid foam, is internally provided with a plurality of pores which can be penetrated through up and down, and is fixed on the fixing basal layer by glue; and the chemical fiber layer is made of comparatively loose chemical fiber cloth and is fixed on the noise reduction pore layer by glue. The invention is simple in structure, when in use, both the self vibration noise of the submarine and the sound wave from outside can be absorbed by the chemical fiber layer, the pores and the rigid foam, thus improving concealment of the submarine and being suitable for all submarines.

Description

technical field [0001] The invention relates to a sound-absorbing jacket, in particular to a sound-absorbing jacket used on a submarine shell. Background technique [0002] Concealment is a major feature of submarines. Since the shell of the submarine is made of metal, which is smooth and reflects sound waves, the submarine is still easy to be found by active sonar even after adding anechoic tiles. Therefore, if it is possible to absorb the sound waves from the outside while eliminating the vibration noise of the submarine itself, it will help to improve the concealment of the submarine. [0003] The disclosed "invisible leather submarine" patent (Application No.: 00122069.1) of Chinese Patent No. CN1376615 has an appearance exactly like animal skin. It is supplied to the electric control panel, and then installed with a noiseless electromagnetic power device and a low-speed motor. After the tail compartment of the submarine, a pair of movable joints are used to connect th...

Claims

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Application Information

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IPC IPC(8): B63G8/00
Inventor 曹宇
Owner SOUTHWEST JIAOTONG UNIV
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