CN202352331U - Multifunctional multi-layer composite material used for high-speed trains - Google Patents
Multifunctional multi-layer composite material used for high-speed trains Download PDFInfo
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- CN202352331U CN202352331U CN2011204454927U CN201120445492U CN202352331U CN 202352331 U CN202352331 U CN 202352331U CN 2011204454927 U CN2011204454927 U CN 2011204454927U CN 201120445492 U CN201120445492 U CN 201120445492U CN 202352331 U CN202352331 U CN 202352331U
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Abstract
The utility model relates to a multifunctional multi-layer composite material used for high-speed trains. The composite material adopts a two-layer composite structure at least comprising a porous heat-insulating material layer and a hard damping sound-insulating material layer, and the porous heat-insulating material layer and the hard damping sound-insulating material layer are laminated alternately. The novel composite material has good sound-absorbing, sound-insulating and vibration-reducing properties while not occupying more useful space in the carriage, and besides, meets the environmental requirements for internal temperature and humidity of the carriage, fire resistance, flame retardancy and the like. By taking full advantage of performance of porous sound-absorbing and heat-insulating materials and hard damping materials, the multifunctional composite material integrates the functions of heat insulation, sound insulation and vibration reduction, is used for controlling the internal noise of the train, and has significance on reducing the internal noise level of the high-speed train carriage and improving the passenger comfort.
Description
Technical field
The utility model relates to the structure of sound insulating material; Be particularly related to a kind of composite stratified material of taking into account multiple functions such as insulation, sound absorption and vibration damping; Can directly apply to the bullet train compartment inner or other strong noise environment of environmental requirement is arranged, be particularly useful in the bullet train compartment.
Background technology
High-speed railway is integrated as contemporary new and high technology; Have comparison advantages such as capacity is big, energy consumption is low, pollution is little, safety and comfort; Being the Transportation Model of tool sustainability and environment friendly in the communications and transportation system, is one of concentrated reflection and important symbol of countries in the world science and technology and manufacturing industry innovation ability, overall national strength and modernization of the country degree.
China Express Railway construction the Eleventh Five-Year Plan period obtains great-leap-forward development under the support energetically of country; Along with China Express Railway operation mileage before the Caytoniales of Beijing-Shanghai express railway has occupied the first in the world; Wherein, The Beijing-Tianjin inter-city passenger rail train running speed has reached 300km/h, and the design speed per hour of Beijing-Shanghai High-Speed Railway has reached 350km/h.The noise and vibration problem seems outstanding further behind the train speed raising; Become restriction high-speed rail technology development key factor; The pollution of noise and vibration not only has a strong impact on quietness, occupant's comfortableness and high ferro area along the line resident's the living environment in the car; And caused the main mechanical when work fretting fatigue even the inefficacy of train, when having reduced service life of equipment, also threatening the safe operation of bullet train.
Noise circumstance is one of key factor of decision comfort of passenger in the high-speed train; For understanding the characteristics of noise in the high-speed train; The researchist is internal noise characteristic research experiment during once to the operation of the different compartments of the bullet train of domestic development four joint models; The noise measurement data show: when travelling speed when 160km/h is above, the noise figure of its interior mostly surpasses allowable value 65dB (A); When the speed of a motor vehicle reached 200km/h, the noise maximal value was up to 80.8dB (A), considerably beyond the allowable value of national Specification.Interior noise fest result of study also shows: low-frequency noise is outstanding in the car, and noise size and spectral characteristic are the principal element that influences internal car noise with locus skewness, train running speed.Above test result shows that the noise problem of bullet train is very outstanding, presses for to take further correspondingly that the vibration and noise reducing measure reduces the railway car internal noise.
The utility model content
The purpose of the utility model is; A kind of multi-functional composite stratified material of brand new is provided; This multifunctional material mainly uses towards between bullet train compartment wallboard; When improving acoustical behavior, guarantee the environmental requirement such as fire-retardant, heat insulation of material, take into account insulation and sound absorption function, and can carry out Acoustic Optimization design according to compartment wallboard different parts spectral characteristics of noise, material thickness space and request for utilization.
To control effective method be that optimization through inner acoustical material and structure comes effectively to absorb and isolates inner primary structure vibration and noise source to noise in the compartment; Between bullet train compartment inside panel (sidewall paneling, ceiling and floor) and agent structure (aluminium section bar), lay a large amount of insulation materials or other supplementary material at present; These materials do not possess sound absorption, sound insulation and vibration-damping function basically; Therefore; Guaranteeing under the environmental requirements such as interior temperature, humidity; Fully utilize sound-absorbing porous material and visco-elastic damping material simultaneously, development insulation, sound absorption, vibration damping integrated multi-functional composite technology carry out the control of train internal noise, and the comfort level that reduces inner noise level in bullet train compartment and raising passenger is had great significance.
The design proposal of the utility model is the optimal combination of porosint and hard sound insulating material; One of them main design thought is used for reference the filling porous acoustic absorbant model of doubling plate (also can choose porous class heat-preservation and sound-absorption material) in the architectural acoustics; As elastic support structure is set, can further play damping effect between doubling plate.Choose and have good heat-insulating property and practical applications and be worth, the porosint of certain sound absorbing capabilities is arranged simultaneously, its density of material should be less soft material, because material has bigger elasticity and retractility, therefore also can play certain damping effect in addition.
For realizing above-mentioned utility model purpose; The utility model provides a kind of multi-functional composite stratified material; It is characterized in that; At least the two layer composite structure that comprises one deck porous thermal insulating material layer and one deck hard damping sound insulating material layer, and porous thermal insulating material layer and hard damping sound insulating material layer intersecting.
A kind of preferred as technique scheme, described multi-functional composite stratified material comprises two-layer hard damping sound insulating material layer and one deck porous thermal insulating material layer, described one deck porous thermal insulating material layer is arranged between the two-layer hard damping sound insulating material layer.
A kind of preferred as technique scheme, described multi-functional composite stratified material comprises two-layer porous thermal insulating material layer and one deck hard damping sound insulating material layer, described one deck hard damping sound insulating material layer is arranged between the two-layer porous thermal insulating material layer.
A kind of preferred as technique scheme; Described multi-functional composite stratified material comprises two-layer porous thermal insulating material layer and three layers of hard damping sound insulating material layer, and described two-layer porous thermal insulating material layer is arranged at intervals at respectively between adjacent two hard damping sound insulating material layers.
A kind of preferred as technique scheme; Described multi-functional composite stratified material comprises two-layer hard damping sound insulating material layer and three layers of porous thermal insulating material layer, and described two-layer hard damping sound insulating material layer is arranged at intervals at respectively between adjacent two porous thermal insulating material layers.
A kind of preferred as technique scheme, the thickness of described porous thermal insulating material layer is 3～50mm.
A kind of preferred as technique scheme, the thickness of described hard damping sound insulating material layer is 0.5～5mm.
The advantage of the utility model is that in the insulation of in original bullet train compartment, using and fire proofing basis, advanced composite material (ACM) possesses good sound absorption, sound insulation and damping property, does not occupy more usage spaces in the compartment simultaneously.
The utility model is guaranteeing under the environmental requirements such as interior temperature, humidity; Fully utilize sound-absorbing porous material and visco-elastic damping material simultaneously; Development insulation, sound absorption, vibration damping integrated multi-functional composite technology carry out the control of train internal noise, and the comfort level that reduces inner noise level in bullet train compartment and raising passenger is had great significance.
Description of drawings
Fig. 1 is that the multi-functional composite stratified material of the utility model is used for the principle schematic in the bullet train compartment;
Fig. 2 is the synoptic diagram that the multi-functional composite stratified material of the utility model adopts two-layer compound embodiment;
Fig. 3 is the synoptic diagram that the multi-functional composite stratified material of the utility model adopts two-layer compound another embodiment;
Fig. 4 is above-mentioned two the sound insulation property test result synoptic diagram that adopt two-layer compound embodiment of the utility model;
Fig. 5 is the synoptic diagram that the multi-functional composite stratified material of the utility model adopts three layers of compound embodiment;
Fig. 6 is the sound insulation property test result synoptic diagram of three layers of compound embodiment of the above-mentioned employing of the utility model;
Fig. 7 is the synoptic diagram that the multi-functional composite stratified material of the utility model adopts five layers of compound embodiment;
Fig. 8 is the sound insulation property test result synoptic diagram of five layers of compound embodiment of the above-mentioned employing of the utility model.
The accompanying drawing sign:
1, porous thermal insulating material layer 2, hard damping sound insulating material layer 3, compartment outer body structure
4, interior wallboard 5, interior space
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified, to the detailed description of the utility model embodiment, above-mentioned and other characteristics and the advantage of the utility model will become clearer through with reference to the accompanying drawings, wherein:
As shown in Figure 1, be that the multi-functional composite stratified material of the utility model is used for the synoptic diagram in the bullet train compartment.
The multi-functional composite stratified material of the utility model comprises: porous thermal insulating material layer 1 and hard damping sound insulating material layer 2; Be arranged at compartment outer body structure 3 (such as: aluminium section bar) and interior wallboard (comprising: sidewall paneling, ceiling and floor) between 4, to eliminate the noise in the interior space 5.Wherein, the multi-functional composite stratified material of the utility model can be confirmed the number of plies and choose respective material according to designing requirement.
In view of multi-functional layered material in the bullet train compartment inner environment for use more complicated; Look concrete condition and also can use the two compound of porous thermal insulating material and hard damping sound insulating material; As shown in Figures 2 and 3, its using priciple is that porous thermal insulating material layer 1 is connected with hard damping sound insulating material layer 2 or compartment inside panel.In this example; Fig. 4 is the sound insulation property of rubber and plastic closed pore thermal insulation material (having certain sound absorbing capabilities and splendid insulation, flame-retarding characteristic) and two layers of compound back test of vulcanie sound insulating material; Wherein, Dotted line is to be followed successively by thick rubber and plastic closed pore thermal insulation material of 19mm and the thick acoustic pad of 1.2mm with the incident acoustic wave direction, and solid line is to be followed successively by thick acoustic pad of 1.2mm and the thick rubber and plastic closed pore thermal insulation material of 19mm with sound incident acoustic wave direction.
As shown in Figure 5, multi-functional layered material adopts 3-layer composite material, ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation).In this example, its thickness is respectively thick acoustic pad of 19mm thick rubber and plastic closed pore thermal insulation material, 1.2mm and the thick rubber and plastic closed pore thermal insulation material of 25mm with the sound incident direction, and the test result of its sound insulation property is as shown in Figure 6.
If the space allows, as the utility model best mode, also can adopt five layers of composite structure, as shown in Figure 7, ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation); The 4th layer: hard damping material (sound insulation); Layer 5: porosint (sound absorption, insulation).In the practical application: first and third, five layers of porosint characteristic parameter can be different with thickness; The second, four layer material characteristic parameters also can be different with thickness; Every layer of porosint thickness can be selected 3～50mm; Every layer of hard damping sound insulating material can be selected 0.5～5mm, and concrete design consideration material is installed and used and required and overall acoustical behavior designing requirement.
As shown in Figure 7; Optimal combination becomes five layers of compound substance with the vulcanie sound insulating material when rubber and plastic closed pore thermal insulation material; Its thickness is respectively 13mm thick rubber and plastic closed pore thermal insulation material, 0.8mm thick thick acoustic pad, 19mm thick rubber and plastic closed pore thermal insulation material, 1.2mm thick thick acoustic pad and the thick rubber and plastic closed pore thermal insulation material of 13mm with the sound incident direction; It is as shown in Figure 8 to test its sound insulation property, has better sound insulation property by the visible five-layer structure of figure relative three-decker in 630～2000Hz frequency range.
Be one group of specific embodiment below, expect the situation of characteristic parameter and thickness with explanation:
1-1 adopts rubber and plastic closed pore thermal insulation material and two layers of compound multi-functional composite stratified material of vulcanie sound insulating material, and wherein, the thickness of porous thermal insulating material layer is 3mm; The thickness of hard damping sound insulating material layer is 0.5mm.
1-2 adopts rubber and plastic closed pore thermal insulation material and two layers of compound multi-functional composite stratified material of vulcanie sound insulating material, and wherein, the thickness of porous thermal insulating material layer is 50mm; The thickness of hard damping sound insulating material layer is 5mm.
1-3 adopts rubber and plastic closed pore thermal insulation material and two layers of compound multi-functional composite stratified material of vulcanie sound insulating material, and wherein, the thickness of porous thermal insulating material layer is 21mm; The thickness of hard damping sound insulating material layer is 3mm.
2-1 adopts rubber and plastic closed pore thermal insulation material and three layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation).In this example, its thickness is respectively thick acoustic pad of 3mm thick rubber and plastic closed pore thermal insulation material, 0.5mm and the thick rubber and plastic closed pore thermal insulation material of 4mm with the sound incident direction.
2-2 adopts rubber and plastic closed pore thermal insulation material and three layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation).In this example, its thickness is respectively thick acoustic pad of 48mm thick rubber and plastic closed pore thermal insulation material, 5mm and the thick rubber and plastic closed pore thermal insulation material of 50mm with the sound incident direction.
2-3 adopts rubber and plastic closed pore thermal insulation material and three layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation).In this example, its thickness is respectively thick acoustic pad of 20mm thick rubber and plastic closed pore thermal insulation material, 3mm and the thick rubber and plastic closed pore thermal insulation material of 24mm with the sound incident direction.
3-1 adopts rubber and plastic closed pore thermal insulation material and five layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation); The 4th layer: hard damping material (sound insulation); Layer 5: porosint (sound absorption, insulation).In this example, its thickness is respectively 3mm thick rubber and plastic closed pore thermal insulation material, 0.5mm thick thick acoustic pad, 5mm thick rubber and plastic closed pore thermal insulation material, 0.8mm thick thick acoustic pad and the thick rubber and plastic closed pore thermal insulation material of 3mm with the sound incident direction.
3-2 adopts rubber and plastic closed pore thermal insulation material and five layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation); The 4th layer: hard damping material (sound insulation); Layer 5: porosint (sound absorption, insulation).In this example, its thickness is respectively 42mm thick rubber and plastic closed pore thermal insulation material, 4mm thick thick acoustic pad, 50mm thick rubber and plastic closed pore thermal insulation material, 5mm thick thick acoustic pad and the thick rubber and plastic closed pore thermal insulation material of 48mm with the sound incident direction.
3-3 adopts rubber and plastic closed pore thermal insulation material and five layers of compound multi-functional composite stratified material of vulcanie sound insulating material, wherein, and ground floor: porosint (sound absorption, insulation); The second layer: hard damping material (sound insulation); The 3rd layer: porosint (sound absorption, insulation); The 4th layer: hard damping material (sound insulation); Layer 5: porosint (sound absorption, insulation).In this example, its thickness is respectively 18mm thick rubber and plastic closed pore thermal insulation material, 2mm thick thick acoustic pad, 24mm thick rubber and plastic closed pore thermal insulation material, 3mm thick thick acoustic pad and the thick rubber and plastic closed pore thermal insulation material of 20mm with the sound incident direction.
In the practical application: the concrete design consideration material of the characteristic parameter of the characteristic parameter of porosint and thickness and hard damping material and thickness is installed and used and is required and overall acoustical behavior designing requirement, can in above-mentioned rational numerical scope, select.
It should be noted last that above embodiment is only unrestricted in order to the technical scheme of explanation the utility model.Although the utility model is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; The technical scheme of the utility model is made amendment or is equal to replacement; The spirit and the scope that do not break away from the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (7)
1. a multi-functional composite stratified material is characterized in that, comprises the two layer composite structure of one deck porous thermal insulating material layer and one deck hard damping sound insulating material layer at least, and porous thermal insulating material layer and hard damping sound insulating material layer intersecting.
2. multi-functional composite stratified material according to claim 1; It is characterized in that; Described multi-functional composite stratified material comprises two-layer hard damping sound insulating material layer and one deck porous thermal insulating material layer, and described one deck porous thermal insulating material layer is arranged between the two-layer hard damping sound insulating material layer.
3. multi-functional composite stratified material according to claim 1; It is characterized in that; Described multi-functional composite stratified material comprises two-layer porous thermal insulating material layer and one deck hard damping sound insulating material layer, and described one deck hard damping sound insulating material layer is arranged between the two-layer porous thermal insulating material layer.
4. multi-functional composite stratified material according to claim 1; It is characterized in that; Described multi-functional composite stratified material comprises two-layer porous thermal insulating material layer and three layers of hard damping sound insulating material layer, and described two-layer porous thermal insulating material layer is arranged at intervals at respectively between adjacent two hard damping sound insulating material layers.
5. multi-functional composite stratified material according to claim 1; It is characterized in that; Described multi-functional composite stratified material comprises two-layer hard damping sound insulating material layer and three layers of porous thermal insulating material layer, and described two-layer hard damping sound insulating material layer is arranged at intervals at respectively between adjacent two porous thermal insulating material layers.
6. according to the multi-functional composite stratified material of claim 1～5 described in each, it is characterized in that the thickness of described porous thermal insulating material layer is 3～50mm.
7. according to the multi-functional composite stratified material of claim 1～5 described in each, it is characterized in that the thickness of described hard damping sound insulating material layer is 0.5～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204454927U CN202352331U (en) | 2011-11-11 | 2011-11-11 | Multifunctional multi-layer composite material used for high-speed trains |
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| CN2011204454927U CN202352331U (en) | 2011-11-11 | 2011-11-11 | Multifunctional multi-layer composite material used for high-speed trains |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106899A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院声学研究所 | Multi-functional layered composite materials for high-speed train |
| CN104071092A (en) * | 2013-03-26 | 2014-10-01 | 南车青岛四方机车车辆股份有限公司 | Layered composite light acoustical material for rail train |
| CN106151338A (en) * | 2015-04-02 | 2016-11-23 | 陕西飞机工业（集团）有限公司 | A kind of vibration and noise reducing composite damping board |
| CN106672201A (en) * | 2016-12-15 | 2017-05-17 | 中国航空工业集团公司西安飞机设计研究所 | Heat-insulating noise-reduction wall plate structure for airplane compartment |
-
2011
- 2011-11-11 CN CN2011204454927U patent/CN202352331U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106899A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院声学研究所 | Multi-functional layered composite materials for high-speed train |
| CN104071092A (en) * | 2013-03-26 | 2014-10-01 | 南车青岛四方机车车辆股份有限公司 | Layered composite light acoustical material for rail train |
| CN106151338A (en) * | 2015-04-02 | 2016-11-23 | 陕西飞机工业（集团）有限公司 | A kind of vibration and noise reducing composite damping board |
| CN106672201A (en) * | 2016-12-15 | 2017-05-17 | 中国航空工业集团公司西安飞机设计研究所 | Heat-insulating noise-reduction wall plate structure for airplane compartment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |