CN2730749Y - Device capable of suppressing the noise radiation from ship shell to sonar array - Google Patents
Device capable of suppressing the noise radiation from ship shell to sonar array Download PDFInfo
- Publication number
- CN2730749Y CN2730749Y CN 200420090584 CN200420090584U CN2730749Y CN 2730749 Y CN2730749 Y CN 2730749Y CN 200420090584 CN200420090584 CN 200420090584 CN 200420090584 U CN200420090584 U CN 200420090584U CN 2730749 Y CN2730749 Y CN 2730749Y
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- China
- Prior art keywords
- sonar
- array
- piezoelectric patches
- ship shell
- lead
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- Expired - Lifetime
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Abstract
The utility model discloses a device capable of suppressing the noise radiation from a ship shell to a sonar array, comprising a soundproof course, the sonar array and a pressing strip which are in sequence arranged on a basic array frame from inside to outside. A sound baffling plate and a rubber pad are in sequence provided between the soundproof course and the sonar array from inside to outside. More than a pair of electricity pressing slices is symmetrically glued on both sides of the sound baffling plate. The electricity pressing slice is connected with conducting wires. The conducting wire connected with the electricity pressing slice on the sound baffling plate and the conducting wire closing the sonar array pass the rubber pad and the basic array frame and are led out. The conducting wire of the electricity pressing slice closing the ship shell passes the soundproof course and the basic array frame and is led out. The utility model is provided with a sound baffling plate between the soundproof course and the sonar array, effectively reduces the noise radiating from the ship shell to the sonar array and improves the exploring distance of the sonar.
Description
Technical field
The utility model relates to control noise device, especially relates to a kind of device that can suppress ship shell to sonar battle array radiated noise.
Background technology
Sonar equipment has functions such as target detect, location, identification and tracking/motion analysis in the water, is the important means that Modern Ships is surveyed target in the water, has a wide range of applications in many fields such as military and civilians.In the antagonism along with science and technology development and identification and anti-identification, impelling the sonar performance improve constantly and perfect.For example, because the appearance of stealthy (covering sound eliminating tile) submarine makes that having developed ripe middle and high frequency active sonar detection performance descends, (Low frequency active sonar's Low-Frequency Active Sonar LFAS) arises at the historic moment.This is because low frequency sonar (comprising initiatively with passive) has following advantage: the radiated noise of low-frequency range internal object naval vessels is bigger, and seawater is less to the absorption of low-frequency sound wave, and this helps increasing detection range.Therefore the research of low frequency sonar is become a important directions in the current sonar research.
As everyone knows, the detection range of sonar, the precision of target recognition etc. are closely-related with the noise signal size, and along with the enhancing of noise signal, detection range, target recognition precision will descend, and for the low frequency sonar, it is important that The noise shows especially.This is because the frequency of operation of low frequency sonar is generally tens hertz to several kilo hertzs, and the radiated noise that produces during ship navigation, as mechanical noise, propeller noise and hydrodynamic noise etc., and marine background noise and sonar operating frequency basically identical, this has just brought bigger difficulty for analyzing the signal and the radiated noise thereof that come from the measured target reflection, and conventional very useful filtering method will lose the reason of existence.
Reducing noise is another important channel of improving the sonar signal to noise ratio, reduce noise multiple mode is arranged, for example naval vessel propulsion system and all kinds of pump are produced the improvement of noise, to being installed, sonar platforms takes to subtract vibration isolation measure, the utility model then installs sound baffle additional in sonar battle array structure, and adopt the angle of the radiation of sound that initiatively suppresses sound baffle to reduce noise, its basic thought is as follows: the upper and lower surface at sound baffle is pasted piezoelectric patches, pass through ACTIVE CONTROL, make baffle radiation of sound power minimum, thereby suppress the radiation of sound of sound baffle, make the signal to noise ratio of sonar array be improved.
Summary of the invention
In order to exclude or to reduce the naval vessel to sonar battle array radiated noise, the purpose of this utility model is to provide a kind of device that can suppress ship shell to sonar battle array radiated noise.
The technical scheme that its technical matters that solves the utility model adopts is:
Comprise from base array rack pugging, sonar battle array, caulking gum and press strip are housed from inside to outside successively; Sound baffle and rubber pad are housed between pugging and sonar battle array from inside to outside successively, piezoelectric patches more than 1 pair is pasted on the two sides of sound baffle symmetry respectively, piezoelectric patches all is connected with lead, the lead that piezoelectric patches is joining on the sound baffle, the lead of close sonar battle array passes rubber pad and base array rack is drawn, and the lead of the piezoelectric patches of close ship shell passes pugging and base array rack is drawn.
The piezoelectric patches that paste respectively on described sound baffle two sides is 1～10 pair, and piezoelectric smart material is a lead titanate-zirconate, and the material of sound baffle is a metallic material.
The useful effect that the utlity model has is: between pugging and sonar battle array sound baffle is housed, effectively reduces the noise of ship shell to the radiation of sonar battle array, improve the detection range of sonar.
Description of drawings
Fig. 1 is the lateral plan and the control chart of the utility model structure;
Fig. 2 is that the A of Fig. 1 structure is to view;
Fig. 3 is that sound baffle is pasted the piezoelectric patches scheme drawing in the utility model.
Among the figure: 1, ship shell, 2, damping layer, 3, base array rack, 4, pugging, 5, press strip, 6, rubber pad, 7, the sonar battle array, 8, sound baffle, 9, caulking gum, 10, piezoelectric patches.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises from base array rack 3 pugging 4, sonar battle array 7, caulking gum 9 and press strip 5 is housed from inside to outside successively; Sound baffle 8 and rubber pad 6 are housed between pugging 4 and sonar battle array 7 from inside to outside successively, piezoelectric patches 10 (among Fig. 3 being 4 pairs) more than 1 pair is pasted on the two sides of sound baffle 8 symmetry respectively, piezoelectric patches 10 all is connected with lead, on the sound baffle 8 piezoelectric patches 10 lead, the lead of close sonar battle array 7 passes rubber pad 6 and base array rack 3 is drawn, and the lead of the piezoelectric patches 10 of close ship shell 1 passes pugging 4 and base array rack 3 is drawn.
The piezoelectric patches that paste respectively on described sound baffle 8 two sides is 1～10 pair, and piezoelectric smart material is a lead titanate-zirconate, and the material of sound baffle 8 is metallic material such as Fe, Al etc.
Principle of work of the present utility model is as follows:
Claims (2)
1, a kind of device that can suppress ship shell to sonar battle array radiated noise, comprise from base array rack (3) pugging (4) is housed from inside to outside successively, sonar battle array (7), caulking gum (9) and press strip (5), it is characterized in that: sound baffle (8) and rubber pad (6) are housed between pugging (4) and sonar battle array (7) from inside to outside successively, piezoelectric patches (10) more than 1 pair is pasted on the two sides of sound baffle (8) symmetry respectively, piezoelectric patches (10) all is connected with lead, sound baffle (8) is gone up the lead that piezoelectric patches (10) is joining, the lead of close sonar battle array (7) passes rubber pad (6) and base array rack (3) is drawn, and the lead of the piezoelectric patches (10) of close ship shell (1) passes pugging (4) and base array rack (3) is drawn.
2, a kind of device that can suppress ship shell according to claim 1 to sonar battle array radiated noise, it is characterized in that: the piezoelectric patches (10) that paste respectively on described sound baffle (8) two sides is 1～10 pair, piezoelectric patches (10) material is a lead titanate-zirconate, and the material of sound baffle (8) is a metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090584 CN2730749Y (en) | 2004-09-24 | 2004-09-24 | Device capable of suppressing the noise radiation from ship shell to sonar array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090584 CN2730749Y (en) | 2004-09-24 | 2004-09-24 | Device capable of suppressing the noise radiation from ship shell to sonar array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2730749Y true CN2730749Y (en) | 2005-10-05 |
Family
ID=35051088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090584 Expired - Lifetime CN2730749Y (en) | 2004-09-24 | 2004-09-24 | Device capable of suppressing the noise radiation from ship shell to sonar array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2730749Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328595C (en) * | 2004-09-24 | 2007-07-25 | 浙江大学 | Side sonar array sound barrier device with noise reducing |
| CN104578894A (en) * | 2014-12-26 | 2015-04-29 | 黑龙江大学 | Anti-noise piezoelectric detection closed-loop control device for window |
| CN105485231A (en) * | 2015-12-15 | 2016-04-13 | 中国船舶重工集团公司第七一〇研究所 | Vibration reduction structure applied to rocket tail end acoustic self-conduction array |
-
2004
- 2004-09-24 CN CN 200420090584 patent/CN2730749Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328595C (en) * | 2004-09-24 | 2007-07-25 | 浙江大学 | Side sonar array sound barrier device with noise reducing |
| CN104578894A (en) * | 2014-12-26 | 2015-04-29 | 黑龙江大学 | Anti-noise piezoelectric detection closed-loop control device for window |
| CN105485231A (en) * | 2015-12-15 | 2016-04-13 | 中国船舶重工集团公司第七一〇研究所 | Vibration reduction structure applied to rocket tail end acoustic self-conduction array |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040924 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |