Underwater pressure-releasing sound-reflecting baffle plate

A technology of sound baffle and pressure relief, which is applied in the direction of sound-emitting devices and instruments, which can solve the problems of reduced sound insulation effect, increased weight, and increased thickness, and achieve the effect of improving sound insulation effect and reducing weight and thickness

Pending Publication Date: 2020-05-12
SHENYANG LIAOHAI EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides an anti-acoustic baffle for underwater pressure release, which can release pressure underwater, and solves the problem of increased weight and thickness of the anti-acoustic baffle in the prior art under high hydrostatic pressure. The problem of reduced sound insulation effect

Method used

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  • Underwater pressure-releasing sound-reflecting baffle plate
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  • Underwater pressure-releasing sound-reflecting baffle plate

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] This embodiment provides an anti-acoustic baffle for underwater pressure relief, which can release pressure underwater, and solves the problem of increased weight, increased thickness, and sound insulation effect of anti-acoustic baffles in the prior art under high hydrostatic pressure. Lowering the problem.

[0030] Such as Figure 1-6 As shown, the anti-sound baffle includes: an anti-sound structure, a sealed and pressure-relief structure, a position-limiting vibration-reduction installation structure, and a liquid-filled exhaust structure; The pressure structure includes: bottom panel 1, top panel 2 and displacement compensation plate 3, the limit vibration damping installation structure includes: bottom panel welded screw hole seat 4, metal pad 6, rubber shock pad A5 and rubber shock pad B11, filling The liquid exhaust structure includes: a li...

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PUM

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Abstract

The invention discloses an underwater pressure-releasing sound-reflecting baffle which comprises a sound-reflecting structure, a sealing pressure-releasing structure and a limiting vibration-reducingmounting structure; the sound-reflecting structure is mounted in the sealing pressure-releasing structure through the limiting vibration-reducing mounting structure to form a sound reflection baffle plate; the sealing pressure-releasing structure comprises a displacement compensation frame, and the sound reflection baffle plate can achieve underwater pressure relief through elastic deformation ofthe displacement compensation frame. The sound reflection baffle plate is based on acoustic characteristics of a porous material; a liquid saturated open-cell foam metal is used as a main sound-reflecting functional material; a pressure release structure is packaged on the outer layer of the liquid saturated open-cell foam metal; through the position compensation structure and the liquid filled inthe position compensation structure, internal and external pressure balance can be realized, underwater pressure release of the sound reflection baffle plate under high hydrostatic pressure is further realized, and compared with the prior art, under the same high hydrostatic pressure, the weight and the thickness of the sound reflection baffle plate can be remarkably reduced, and the sound insulation effect is improved.

Description

technical field [0001] The invention relates to the technical field of underwater sound noise reduction, in particular to an anti-acoustic baffle for underwater pressure relief. Background technique [0002] In the field of underwater acoustic noise reduction, anti-acoustic baffles, as a functional material, can block the interference of noise on the sonar array and improve the detection performance of sonar equipment. At present, underwater anti-acoustic noise reduction mainly uses the principle of impedance mismatch. Due to the huge difference in characteristic impedance between air and water, underwater anti-acoustic baffles mostly use air as the main anti-acoustic functional material. Existing air material anti-acoustic baffles mainly There are air cavity type and foam type structure with small air holes. [0003] Among them, the air-cavity anti-acoustic baffle is welded with metal plates to form a structure with a cavity inside. In order to adapt to the pressure of dee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/162G10K11/16
CPCG10K11/162G10K11/161
Inventor 黄文雪张玉良胡久龄金东洋郭广彪刘宇红景殿涛刘喆戴铁军张峰周长恩
Owner SHENYANG LIAOHAI EQUIP
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