CN104392715A - Composite sound-proof baffle for sonar array - Google Patents
Composite sound-proof baffle for sonar array Download PDFInfo
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- CN104392715A CN104392715A CN201410699675.XA CN201410699675A CN104392715A CN 104392715 A CN104392715 A CN 104392715A CN 201410699675 A CN201410699675 A CN 201410699675A CN 104392715 A CN104392715 A CN 104392715A
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Abstract
The invention relates to a composite sound-proof baffle for a sonar array. The composite sound-proof baffle for the sonar array comprises a sound absorption baffle and an acoustic reflection baffle connected with the back of the sound absorption baffle, wherein the sound absorption baffle is made of porous material, the acoustic reflection baffle is composed of a foam core layer and an acoustic transmission composite shell which coats the foam core layer, the foam core layer is made of low-density polystyrene foam with reinforcing posts, and the acoustic transmission composite shell is composed of epoxy resin and glass fiber in a composite curing mode. When being used in water, water would completely enter pores of the porous material, when sound wave enters the porous material, the sound wave can be well absorbed by the foamed aluminum of the porous material, and the sound energy would be well converted into heat effect to be absorbed. The composite sound-proof baffle for the sonar array has the performances of the sound absorption material and acoustic reflection material, and through using the air-rich, light and low-impedance low-density polystyrene foam material as the acoustic reflection material, the composite sound-proof baffle is capable of resisting a high water pressure. The composite sound-proof baffle for the sonar array has a good sound insulation effect.
Description
Technical field
The present invention relates to Underwater Detection field, be specifically related to a kind of compound for sonar array sound insulation baffle.
Background technology
Underwater acoustic materials refers to the acoustical material used in facility under water, along with the appearance of nuclear-powered submarine and the development of Underwater Battery, undersea detection technology plays a part abnormal important, the quantity of nuclear submarine, capital ship, supertanker and combination vessel increases increasingly in recent years, thus also more and more higher to the requirement of underwater acoustic system and underwater noise control.Meanwhile, the kind of kuppe, sound transmitting window, baffle, reverberator, anechoic coatings and volume sound absorber is also on the increase, and this facilitates the development of underwater acoustic materials greatly.
Use under being in the condition of external pressure effect in the usual environment under water of underwater acoustic materials, therefore certain compressive resistance must be had.Current underwater acoustic materials relates generally to foamed material and elastomeric material etc., and compared with close material, the most outstanding feature of foamed material is that characteristic impedance is low, and this is that they obtain the main cause of application in underwater acoustic system.And elastomeric material is widely used in the underwater acoustic system being representative with submarine sound eliminating tile.Low-density polystyrene underwater acoustic materials is the new polymers class underwater acoustic materials that development in recent years is got up, and the application in underwater acoustic system such as the foamed material of low-density polystyrene has good development prospect.
Underwater acoustic materials relates generally to the aspects such as underwater acoustic absorption material, underwater acoustic transmission material and underwater acoustic reflection material.But be only do single research for the material of a certain kind in the application of current underwater acoustic materials, it also only plays the effect of sound absorption, entrant sound or anti-sound in the application.
For this reason, deviser of the present invention is because above-mentioned technological deficiency, by concentrating on studies and designing, comprehensive experience and the achievement being engaged in related industry for a long time for many years, research and design goes out a kind of compound for sonar array sound insulation baffle, be compounded with the technique effect of sound absorption, entrant sound and anti-sound, to overcome above-mentioned technological deficiency.
Summary of the invention
The technical problem to be solved in the present invention is: design a kind of compound for sonar array sound insulation baffle, to solve the technological deficiency that underwater acoustic materials of the prior art can not meet request for utilization comprehensively.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of sound insulation of the compound for sonar array baffle, it is characterized in that: comprise sound absorption baffle and the Antisoundbaffle being connected to the sound absorption baffle back side, the baffle that wherein absorbs sound is porosint, Antisoundbaffle is made up of the entrant sound material shell of foamed core and coated foamed core, described foamed core is the low-density polystyrene foam with strengthening post, and described entrant sound material shell is that epoxy resin and glass fibre composite curing form.
As above for the compound sound insulation baffle of sonar array, it is characterized in that: described porosint is foamed aluminium.
As above for the compound sound insulation baffle of sonar array, it is characterized in that: described enhancing column material is fibre-reinforced epoxy resin.
As above for the compound sound insulation baffle of sonar array, it is characterized in that: described epoxy resin is epoxy vingl ester resin.
As above for the compound sound insulation baffle of sonar array, it is characterized in that: described epoxy resin and the weight ratio of glass fibre are 65-70:30-35.
Known by technique scheme, a kind of sound insulation of the compound for sonar array baffle of the present invention has following technique effect:
1. when using in water, water can enter in the hole of porosint fully, and can be absorbed well by porosint foamed aluminium during sound wave incident, acoustic energy will well be converted into thermal effect and be predominantly absorbed.
2. take into account acoustic absorbant and reverse sound material performance separately, use rich aeriferous, light-duty, low-impedance low-density polystyrene foamed material as reverse sound material, can high water pressure resistant.There is good sound isolation effect.
Detailed content of the present invention obtains by following detailed description and Figure of description.
Accompanying drawing explanation
Fig. 1 is the compound for sonar array of the present invention sound insulation baffle structural representation.
Fig. 2 is Antisoundbaffle structural representation of the present invention.
In figure: 1 for sound absorption baffle, 2 be Antisoundbaffle, 3 for entrant sound material shell, 4 be low-density polystyrene foamed core.
Embodiment
The concrete structure of a kind of sound insulation of the compound for sonar array baffle of the present invention is described in detail below in conjunction with Figure of description.
See Fig. 1 ~ Fig. 2, show a kind of sound insulation of the compound for sonar array baffle of the present invention.
A kind of sound insulation of the compound for sonar array baffle, comprise sound absorption baffle and the Antisoundbaffle being connected to the sound absorption baffle back side, the baffle that wherein absorbs sound is porosint foamed aluminium, Antisoundbaffle is made up of the entrant sound material shell of foamed core and coated foamed core, epoxy vingl ester resin and the glass fibre composite curing of entrant sound compound substance to be weight ratio be 70:30 form, and have good water-fast and sound translative performance.Described foamed core is the low-density polystyrene foam with strengthening post.Described enhancing column material is fibre-reinforced epoxy resin.
Known by said structure, a kind of sound insulation of the compound for sonar array baffle tool of the present invention has the following advantages:
1. when using in water, water can enter in the hole of porosint fully, and can be absorbed well by porosint foamed aluminium during sound wave incident, acoustic energy will well be converted into thermal effect and be predominantly absorbed.
2. take into account acoustic absorbant and reverse sound material performance separately, use rich aeriferous, light-duty, low-impedance low-density polystyrene foamed material as reverse sound material, can high water pressure resistant.There is good sound isolation effect.
It is evident that, above description and record be only citing instead of in order to limit content disclosed by the invention, application or use.Although described in an embodiment and described embodiment with reference to the accompanying drawings, but the present invention do not limit by accompanying drawing example and describe in an embodiment as the optimal mode thought at present to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of instructions and the appended claim fallen into above.
Claims (5)
1. the sound insulation of the compound for a sonar array baffle, it is characterized in that: comprise sound absorption baffle and the Antisoundbaffle being connected to the sound absorption baffle back side, the baffle that wherein absorbs sound is porosint, Antisoundbaffle is made up of the entrant sound material shell of foamed core and coated foamed core, described foamed core is the low-density polystyrene foam with strengthening post, and described entrant sound material shell is that epoxy resin and glass fibre composite curing form.
2., as claimed in claim 1 for the compound sound insulation baffle of sonar array, it is characterized in that: described porosint is foamed aluminium.
3., as claimed in claim 1 for the compound sound insulation baffle of sonar array, it is characterized in that: described enhancing column material is fibre-reinforced epoxy resin.
4., as claimed in claim 1 for the compound sound insulation baffle of sonar array, it is characterized in that: described epoxy resin is epoxy vingl ester resin.
5., as claimed in claim 1 for the compound sound insulation baffle of sonar array, it is characterized in that: described epoxy resin and the weight ratio of glass fibre are 65-70:30-35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699675.XA CN104392715A (en) | 2014-11-27 | 2014-11-27 | Composite sound-proof baffle for sonar array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699675.XA CN104392715A (en) | 2014-11-27 | 2014-11-27 | Composite sound-proof baffle for sonar array |
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| Publication Number | Publication Date |
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| CN104392715A true CN104392715A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410699675.XA Pending CN104392715A (en) | 2014-11-27 | 2014-11-27 | Composite sound-proof baffle for sonar array |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840711A (en) * | 2016-05-27 | 2016-08-10 | 哈尔滨工程大学 | Metal vibration isolator for supporting underwater sound insulation baffle |
| CN110223667A (en) * | 2019-06-14 | 2019-09-10 | 哈尔滨工程大学 | A kind of Composite Hollow acoustic baffle |
| CN110580895A (en) * | 2019-09-24 | 2019-12-17 | 哈尔滨工程大学 | sound baffle combination for underwater detection equipment |
| CN110599993A (en) * | 2019-09-24 | 2019-12-20 | 哈尔滨工程大学 | Carbon fiber sound baffle for underwater detection equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840711A (en) * | 2016-05-27 | 2016-08-10 | 哈尔滨工程大学 | Metal vibration isolator for supporting underwater sound insulation baffle |
| CN110223667A (en) * | 2019-06-14 | 2019-09-10 | 哈尔滨工程大学 | A kind of Composite Hollow acoustic baffle |
| CN110580895A (en) * | 2019-09-24 | 2019-12-17 | 哈尔滨工程大学 | sound baffle combination for underwater detection equipment |
| CN110599993A (en) * | 2019-09-24 | 2019-12-20 | 哈尔滨工程大学 | Carbon fiber sound baffle for underwater detection equipment |
| CN110580895B (en) * | 2019-09-24 | 2024-04-19 | 哈尔滨工程大学 | Acoustic baffle assembly for underwater detection equipment |
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