CN1328595C - Side sonar array sound barrier device with noise reducing - Google Patents
Side sonar array sound barrier device with noise reducing Download PDFInfo
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- CN1328595C CN1328595C CNB2004100667558A CN200410066755A CN1328595C CN 1328595 C CN1328595 C CN 1328595C CN B2004100667558 A CNB2004100667558 A CN B2004100667558A CN 200410066755 A CN200410066755 A CN 200410066755A CN 1328595 C CN1328595 C CN 1328595C
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- sonar
- array
- sound
- piezoelectric patches
- rack
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Abstract
The present invention discloses a shipboard sonar array sound barrier device with a noise reducing function, which comprises a soundproof layer, a sonar array and a pressing strip, wherein the soundproof layer, the sonar array and the pressing strip are orderly arranged from the inner part to the outer part of a base array rack; a sonic barrier plate and a rubber pad are orderly arranged from the inner part to the outer part between the soundproof layer and the sonar array; both sides of the sonic barrier plate are respectively symmetrically stuck with more than one pair of piezoelectric pieces which are all connected with conducting wires; the piezoelectric pieces on the sonic barrier plate are connected with the conducting wires; the conducting wires near the sonar array penetrate through the rubber pad and the base array rack and are led out; the conducting wires of the piezoelectric pieces near vessel shell bodies penetrate through the soundproof layer and the base array rack and are led out. In the present invention, the sonic barrier plate is installed between the soundproof layer and the sonar array; the present invention effectively reduces the noise radiated by vessel shell bodies to the sonar array and enhances the detection distance of sonar.
Description
Technical field
The present invention relates to control the noise device, especially relate to a kind of side sonar array sound barrier device with noise reduction.
Background technology
Sonar has functions such as target detection, 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 KHz, 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 (S/N 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 present invention is then installed sound baffle additional in sonar battle array structure, and adopt the angle of the sound radiation 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 sound radiation power minimum, thereby suppress the sound radiation of sound baffle, make the signal to noise ratio (S/N ratio) of sonar array be improved.
Summary of the invention
In order to exclude or to reduce the naval vessel, the object of the present invention is to provide a kind of side sonar array sound barrier device with noise reduction to sonar battle array radiated noise.
The technical solution adopted for the present invention to solve the technical problems is:
Comprise base array rack, and sound insulating layer, sonar battle array, caulking gum and press strip outwards are housed successively from the base array rack medial surface; Sound baffle and rubber blanket are housed between sound insulating layer 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 blanket and base array rack is drawn, and the lead of the piezoelectric patches of close ship shell passes sound insulating layer 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 metal material.
The useful effect that the present invention has is: between sound insulating layer 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 side view and the control chart of structure of the present invention;
Fig. 2 is that the A of Fig. 1 structure is to view;
Fig. 3 is that sound baffle is pasted the piezoelectric patches synoptic diagram among the present invention.
Among the figure: 1, ship shell, 2, damping layer, 3, base array rack, 4, sound insulating layer, 5, press strip, 6, rubber blanket, 7, the sonar battle array, 8, sound baffle, 9, caulking gum, 10, piezoelectric patches.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes base array rack 3, and sound insulating layer 4, sonar battle array 7, caulking gum 9 and press strip 5 outwards are housed successively from base array rack 3 medial surfaces; Sound baffle 8 and rubber blanket 6 are housed between sound insulating layer 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 blanket 6 and base array rack 3 is drawn, and the lead of the piezoelectric patches 10 of close ship shell 1 passes sound insulating layer 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 metal material such as Fe, Al etc.
Principle of work of the present invention is as follows:
Base array rack 3 is contained on the ship shell 1 by damping layer 2, upper and lower surface at sound baffle 8 is pasted piezoelectric patches 10, wherein Yi Mian piezoelectric patches is as sensor, another side as controller, the noise signal of sensor senses changes numerical signal into through secondary instrument and A/D conversion, through industrial computer output feedback control signal, through D/A conversion and power amplifier, send controller to again, thereby suppress the sound baffle sound radiation.
Claims (2)
1, a kind of side sonar array sound barrier device with noise reduction, comprise base array rack (3), and sound insulating layer (4) outwards is housed successively from base array rack (3) medial surface, sonar battle array (7), caulking gum (9) and press strip (5), it is characterized in that: sound baffle (8) and rubber blanket (6) are housed between sound insulating layer (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 blanket (6) and base array rack (3) is drawn, and the lead of the piezoelectric patches (10) of close ship shell (1) passes sound insulating layer (4) and base array rack (3) is drawn.
2, a kind of side sonar array sound barrier device according to claim 1 with noise reduction, 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 metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100667558A CN1328595C (en) | 2004-09-24 | 2004-09-24 | Side sonar array sound barrier device with noise reducing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100667558A CN1328595C (en) | 2004-09-24 | 2004-09-24 | Side sonar array sound barrier device with noise reducing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588121A CN1588121A (en) | 2005-03-02 |
| CN1328595C true CN1328595C (en) | 2007-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100667558A Expired - Fee Related CN1328595C (en) | 2004-09-24 | 2004-09-24 | Side sonar array sound barrier device with noise reducing |
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| Country | Link |
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| CN (1) | CN1328595C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470201B (en) * | 2007-12-28 | 2011-11-09 | 中国科学院声学研究所 | MIMO network interference suppression system and method thereof |
| CN110223667A (en) * | 2019-06-14 | 2019-09-10 | 哈尔滨工程大学 | A kind of Composite Hollow acoustic baffle |
| CN116331456B (en) * | 2023-03-17 | 2023-11-24 | 中国科学院声学研究所 | A broadside array subassembly for unmanned submarine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101929A (en) * | 1989-07-18 | 1992-04-07 | Jaromir Tobias | Vibration isolation support mounting system |
| CN1434227A (en) * | 2003-02-28 | 2003-08-06 | 浙江大学 | Piezoelectric intelligent torsional control lever |
| CN1448643A (en) * | 2003-04-03 | 2003-10-15 | 浙江大学 | Intelligent torsion control lever based on tile shape piezo-electric sheets |
| CN2621876Y (en) * | 2003-04-14 | 2004-06-30 | 浙江大学 | Twe-D superprecision positioning, damping vernier working platform based on piezoelectric driver |
| CN2730749Y (en) * | 2004-09-24 | 2005-10-05 | 浙江大学 | Device capable of suppressing the noise radiation from ship shell to sonar array |
-
2004
- 2004-09-24 CN CNB2004100667558A patent/CN1328595C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101929A (en) * | 1989-07-18 | 1992-04-07 | Jaromir Tobias | Vibration isolation support mounting system |
| CN1434227A (en) * | 2003-02-28 | 2003-08-06 | 浙江大学 | Piezoelectric intelligent torsional control lever |
| CN1448643A (en) * | 2003-04-03 | 2003-10-15 | 浙江大学 | Intelligent torsion control lever based on tile shape piezo-electric sheets |
| CN2621876Y (en) * | 2003-04-14 | 2004-06-30 | 浙江大学 | Twe-D superprecision positioning, damping vernier working platform based on piezoelectric driver |
| CN2730749Y (en) * | 2004-09-24 | 2005-10-05 | 浙江大学 | Device capable of suppressing the noise radiation from ship shell to sonar array |
Non-Patent Citations (4)
| Title |
|---|
| 主动振动控制中控制技术的发展及其应用 杨东利，魏燕定，李国平，陈子辰，振动工程学报，第14卷第增刊期 2001 * |
| 振动主动控制技术的应用与研究 李国平，杨东利，魏燕定，陈子辰，东南大学学报，第31卷第5A期 2001 * |
| 精密设备系统主动隔振的基础理论与技术 李国平，魏燕定，陈子辰，兵工学报，第25卷第4期 2004 * |
| 精密设备系统主动隔振的基础理论与技术 李国平，魏燕定，陈子辰，兵工学报，第25卷第4期 2004;振动主动控制技术的应用与研究 李国平，杨东利，魏燕定，陈子辰，东南大学学报，第31卷第5A期 2001;主动振动控制中控制技术的发展及其应用 杨东利，魏燕定，李国平，陈子辰，振动工程学报，第14卷第增刊期 2001 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1588121A (en) | 2005-03-02 |
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Granted publication date: 20070725 Termination date: 20100924 |