CN204250355U - A kind of novel Soft Roll absorbing sound and lowering noise structure - Google Patents
A kind of novel Soft Roll absorbing sound and lowering noise structure Download PDFInfo
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- CN204250355U CN204250355U CN201420649453.2U CN201420649453U CN204250355U CN 204250355 U CN204250355 U CN 204250355U CN 201420649453 U CN201420649453 U CN 201420649453U CN 204250355 U CN204250355 U CN 204250355U
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Abstract
The utility model discloses a kind of novel Soft Roll absorbing sound and lowering noise structure, it is characterized in that, comprise damping layer (1) and sound absorbing layer (2), wherein, damping layer (1) is distributed with several decay hole and sound-absorption hole, the noise arriving damping layer (1) surface is carried out decaying and sucking, sound absorbing layer (2) is positioned at damping layer (1) below, in honeycomb sandwich construction, the noise sucked from the suction hole of damping layer (1) effectively can be absorbed.Effectively can absorb noise, and by sound attenuation to minimum, optimize interlayer overlapping combinations according to actual conditions, reach best absorbing sound and lowering noise effect.
Description
Technical field
The invention belongs to absorbing sound and lowering noise technical field, relate to a kind of novel Soft Roll absorbing sound and lowering noise structure.
Background technology
In order to improve safety and the traveling comfort of aircraft, the noise control at the position such as driving compartment, work chamber and decoration are become to one of important indicator of aircraft traveling comfort examination, especially military aircraft, indoor environment and noise control are not made demands for a long time always, along with the foundation of military aircraft airworthiness requirement, comfortable, quiet working environment need be provided to aviator and crew.Therefore, adopt Soft Roll absorbing sound and lowering noise structure not only can beautify indoor environment, can also effectively reduce noise in cabin.
Soft Roll absorbing sound and lowering noise structure mainly comprises two parts, and one is the effect that the soft structures on surface plays indoor environment and beautifies, and aperture is wherein conducive to absorption and the decay of noise in cabin; Two is that honeycomb sandwich construction effectively can absorb noise, and by sound attenuation to minimum, optimizes interlayer overlapping combinations, reach best absorbing sound and lowering noise effect according to actual conditions.
Utility model content
The purpose of this utility model is: the purpose of this utility model proposes a kind of novel absorbing sound and lowering noise construction design method, it can by the absorbing sound and lowering noise effect to sandwich structure and surface decoration material, noise in actv. control cabinet, meet noise design level in cabin, the ornament materials on surface can also beautify working environment simultaneously, improve the traveling comfort of aircraft, meet military secret airworthiness requirement.
The technical solution of the utility model is: a kind of novel Soft Roll absorbing sound and lowering noise structure, it is characterized in that, comprise damping layer 1 and sound absorbing layer 2, wherein, damping layer 1 is distributed with several decay hole and sound-absorption hole, the noise arriving damping layer 1 surface is carried out decaying and sucking, sound absorbing layer 2 is positioned at below damping layer 1, in honeycomb sandwich construction, the noise sucked from the suction hole of damping layer 1 effectively can be absorbed
Also have some layers of cotton felt 3 and glass reinforced plastic panel 4 between described damping layer 1 and sound absorbing layer 2, play the effect strengthening sound-absorbing effect and support structure.
Bonded by 101 glue between described damping layer 1 and sound absorbing layer 2.
The beneficial effects of the utility model are:
1, indoor environment is decorated
2, control cabinet interior noise level
3, assembling is simple, maintenance and processing ease
4, material is cheap, and surface is easy to clean
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, wherein, and damping layer 1, and sound absorbing layer 2, cotton felt 3, glass reinforced plastic panel 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
Below the utility model is described in further details.
Fig. 1 is absorbing sound and lowering noise sandwich structure schematic diagram in a kind of typical aircraft cabin.The damping layer 1 on surface selects flame-retardant fabrics, a kind of soft artificial leather material with needle-like aperture, different colors or decorative pattern can be selected according to the demand of aircraft, simultaneously according to the requirement of noise reduction, size and the arrangement of the needle-like aperture of effects on surface are optimized design, select the scheme of noise absorption and decay the best; The cotton felt 3 of the second layer is materials of a kind of sound-absorbing effect excellence, and density is little, lightweight, possesses function of heat insulation simultaneously, according to the thickness of design requirement determination material; Glass reinforced plastic panel 4 according to the rigidity requirement of design, can determine the laying number of plies and direction; In sound absorbing layer 2, the size of honeycomb core and model are according to rigidity and noise control level, select suitable material.
Claims (4)
1. a novel Soft Roll absorbing sound and lowering noise structure, it is characterized in that, comprise damping layer (1) and sound absorbing layer (2), wherein, damping layer (1) is distributed with several decay hole and sound-absorption hole, is carried out decaying and sucking by the noise arriving damping layer (1) surface, sound absorbing layer (2) is positioned at damping layer (1) below, in honeycomb sandwich construction, the noise sucked from the suction hole of damping layer (1) effectively can be absorbed.
2. novel Soft Roll absorbing sound and lowering noise structure according to claim 1, it is characterized in that, also have some layers of cotton felt (3) and glass reinforced plastic panel (4) between described damping layer (1) and sound absorbing layer (2), play the effect strengthening sound-absorbing effect and support structure.
3. novel Soft Roll absorbing sound and lowering noise structure according to claim 1, is characterized in that, is bonded between described damping layer (1) and sound absorbing layer (2) by 101 glue.
4. novel Soft Roll absorbing sound and lowering noise structure according to claim 1, is characterized in that, described suction hole is arranged on decay hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649453.2U CN204250355U (en) | 2014-11-03 | 2014-11-03 | A kind of novel Soft Roll absorbing sound and lowering noise structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649453.2U CN204250355U (en) | 2014-11-03 | 2014-11-03 | A kind of novel Soft Roll absorbing sound and lowering noise structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250355U true CN204250355U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420649453.2U Active CN204250355U (en) | 2014-11-03 | 2014-11-03 | A kind of novel Soft Roll absorbing sound and lowering noise structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204250355U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105395066A (en) * | 2015-11-30 | 2016-03-16 | 刘义芝 | Household mute rock grinding soybean milk machine |
| CN105947175A (en) * | 2016-05-09 | 2016-09-21 | 四川马可视觉网络科技有限公司 | Low-noise helicopter |
| US20210355962A1 (en) * | 2018-09-04 | 2021-11-18 | Safran Aircraft Engines | Fan casing for an aircraft turbomachine directly incorporating abradable portions and having acoustic properties |
-
2014
- 2014-11-03 CN CN201420649453.2U patent/CN204250355U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105395066A (en) * | 2015-11-30 | 2016-03-16 | 刘义芝 | Household mute rock grinding soybean milk machine |
| CN105947175A (en) * | 2016-05-09 | 2016-09-21 | 四川马可视觉网络科技有限公司 | Low-noise helicopter |
| US20210355962A1 (en) * | 2018-09-04 | 2021-11-18 | Safran Aircraft Engines | Fan casing for an aircraft turbomachine directly incorporating abradable portions and having acoustic properties |
| US11788558B2 (en) * | 2018-09-04 | 2023-10-17 | Safran Aircraft Engines | Fan casing for an aircraft turbomachine directly incorporating abradable portions and having acoustic properties |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |