CN103935373A - Sound-isolation vibration-reduction high-speed train floor structure - Google Patents
Sound-isolation vibration-reduction high-speed train floor structure Download PDFInfo
- Publication number
- CN103935373A CN103935373A CN201410161745.6A CN201410161745A CN103935373A CN 103935373 A CN103935373 A CN 103935373A CN 201410161745 A CN201410161745 A CN 201410161745A CN 103935373 A CN103935373 A CN 103935373A
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- Prior art keywords
- sound
- floor
- bonding
- section bar
- layer
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Links
- 238000002955 isolation Methods 0.000 title abstract 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 63
- 238000013016 damping Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 25
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 46
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 38
- 230000000694 effects Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention provides a sound-isolation vibration-reduction high-speed train floor structure. The upper surface of a web of a floor aluminum profile is coated with a layer of free viscoelastic damping material in a spraying mode, polyurethane sound-isolation material is additionally arranged in an inner cavity of the floor aluminum profile, an elastic support base lower support is arranged above the floor aluminum profile in a pasted mode, the viscoelastic damping material layer is arranged on the upper surface of a top plate of the floor aluminum profile and the elastic support base lower support in a pasted mode, a constraint layer aluminum plate is arranged above the viscoelastic damping material layer in a pasted mode to form a constraint damping layer together, the elastic support base lower support is connected with the upper support to form an elastic support through a rubber cushion, cold-proof material is laid between the constraint layer aluminum plate and a sound-isolation cushion, the sound-isolation cushion is connected with the aluminum plate in a pasted mode to form a whole and then is connected with the elastic support in a pasted mode, foamed aluminum is connected above the aluminum plate in a pasted mode, and the aluminum plate is connected above the foamed aluminum in a pasted mode. According to the sound-isolation vibration-reduction high-speed train floor structure, sound isolation quantity at each frequency band of the aluminum profile can be improved by about 1 dB; the current space resource can be fully utilized, and medium-high frequency sound absorption ability is improved; the carry-over factor of structure vibration from bottom to top is reduced, and structure sound transmission is inhibited.
Description
Technical field
The present invention relates to a kind of floor composite structure, especially relate to a kind of novel environment friendly sound insulation vibration damping high speed train floor panel structure.
Background technology
Internal car noise has become that restriction high speed train continues, the problem of stable development.And wheel track domain oscillation and noise circumstance are severe, wheel track and bogie truck system are transaudient by floor panel structure, wheel track noise region and bogie truck aerodynamics noise are one of main contributions person of internal car noise by floor airborne sound.Improve car body floor sound insulation cushioning performance, significant to improving vehicle interior sound field environment.
The patent No. is 201220016209.3 the high soundproof floor structure of one patent, and its floor aluminium section bar lumen loading polyurethane sound deadener, every the full die cavity of filling polyurethane for 1 die cavity; Floor aluminium section bar upper and lower surface spraying damping slurry layer; The bonding wooden frame in aluminium section bar top, floor; Between aluminium section bar top, floor and wooden frame, first lay drainboard, then lay cold-proof materials; Sound insulating pad is first bonding with wooden frame again with the bonding composition entirety of wood covering; Wood covering top laying floor cloth; Carpet is laid in floor cloth top.The floor aluminium section bar inner chamber of this structure is every the full die cavity of filling polyurethane for 1 die cavity, and another die cavity, without any packing material, can not make full use of existing space resource, and then improves to a greater extent noise insulation factor; Bonding with wooden frame between sound insulating pad and floor aluminium section bar, wood structure rigidity is bigger than normal, can not play good effectiveness in vibration suppression; Top layer plank defening effect is not remarkable, moisture-sensitive distortion, and easily there is potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of sound insulation vibration damper floor, improved on the one hand the noise insulation factor of floor panel structure, reached on the other hand the effectiveness in vibration suppression of high speed train.
For achieving the above object, the invention provides a kind of sound insulation vibration damping high speed train floor panel structure, it is characterized in that: floor aluminium section bar web upper surface is coated with the free visco-elastic damping material layer of one deck, floor aluminium section bar inner chamber is added with polyurethane sound deadener, the bonding elastic supporting seat lower support in aluminium section bar top, floor, in floor aluminium section bar cover top surface and elastic supporting seat lower support, be all bonded with visco-elastic damping material layer, the bonding restraint layer aluminium sheet in visco-elastic damping material layer top forms restriction damping layer jointly, elastic supporting seat lower support becomes resilient mounting by rubber pad with upper support and connection, between restraint layer aluminium sheet and sound insulating pad, lay cold-proof materials, the bonding composition entirety of sound insulating pad and aluminium sheet is rear and resilient mounting is bonding, the bonding foaming aluminum in aluminium sheet top, the bonding aluminium sheet in foaming aluminum top.
The free visco-elastic damping material layer thickness of described floor aluminium section bar web upper surface spraying is 1mm.
In described floor aluminium section bar cover top surface and elastic supporting seat lower support, bonding visco-elastic damping material layer thickness is 0.3mm, and restraint layer aluminium plate thickness is 0.4mm.
Described sound insulating pad thickness is 5mm.
Compared with prior art, the invention has the beneficial effects as follows:
Floor aluminium section bar web upper surface sprays free visco-elastic damping material, reduces web structure medium high frequency local vibration radiation of sound, and the each frequency range noise insulation factor of aluminium section bar can improve about 1dB; The whole filled polyurethane sound deadeners of each die cavity in the aluminium section bar inner chamber of floor, make full use of existing space resource, improve medium high frequency acoustical absorptivity; Between lower support and upper support, be connected with rubber pad, reduced structural vibration transfer coefficient from bottom to top, suppressed structure-borne sound transmission; In restriction damping layer, visco-elastic damping material and restraint layer aluminium sheet form restriction damping layer jointly, and simulation result shows that its thickness combination makes floor panel structure reach optimum in high-frequency region defening effect, meets the requirement of car body plate structure weight-saving simultaneously; In aluminium sheet, add aluminium foam sandwich, compare with the aluminium sheet of stack pile, quality reduces by half, and can effectively improve the defening effect of floor low-frequency range.
Brief description of the drawings
Fig. 1 is the section of structure of the embodiment of the present invention;
Fig. 2 is resilient mounting cutaway view;
Fig. 3 is resilient mounting distribution graph.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, the free visco-elastic damping material layer 2 that aluminium section bar 1 web upper surface coating thickness in floor of the present invention is 1mm, floor aluminium section bar 1 lumen loading polyurethane sound deadener 3, the floor aluminium section bar 1 bonding elastic supporting seat lower support 12 in top, in floor aluminium section bar 1 cover top surface and elastic supporting seat lower support, be all bonded with the visco-elastic damping material layer 4 that 0.3mm is thick, the common formation restriction damping layer of restraint layer aluminium sheet 5 that the visco-elastic damping material layer 4 bonding 0.4mm in top are thick, elastic supporting seat lower support 12 connects into resilient mounting by rubber pad 11 and upper support 13, between the thick sound insulating pad 7 of restraint layer aluminium sheet 5 and 5mm, lay cold-proof materials 6, the bonding composition entirety of sound insulating pad 7 and aluminium sheet 8 is rear and resilient mounting is bonding, the aluminium sheet 8 bonding foaming aluminums 9 in top, the bonding aluminium sheet 10 in foaming aluminum top.
Claims (4)
1. a sound insulation vibration damping high speed train floor panel structure, it is characterized in that: floor aluminium section bar web upper surface is coated with the free visco-elastic damping material layer of one deck, floor aluminium section bar inner chamber is added with polyurethane sound deadener, the bonding elastic supporting seat lower support in aluminium section bar top, floor, in floor aluminium section bar cover top surface and elastic supporting seat lower support, be all bonded with visco-elastic damping material layer, the bonding restraint layer aluminium sheet in visco-elastic damping material layer top forms restriction damping layer jointly, elastic supporting seat lower support becomes resilient mounting by rubber pad with upper support and connection, between restraint layer aluminium sheet and sound insulating pad, lay cold-proof materials, the bonding composition entirety of sound insulating pad and aluminium sheet is rear and resilient mounting is bonding, the bonding foaming aluminum in aluminium sheet top, the bonding aluminium sheet in foaming aluminum top.
2. a kind of sound insulation vibration damping high speed train floor panel structure according to claim 1, is characterized in that: the free visco-elastic damping material layer thickness of described floor aluminium section bar web upper surface spraying is 1mm.
3. a kind of sound insulation vibration damping high speed train floor panel structure according to claim 1, it is characterized in that: in described floor aluminium section bar cover top surface and elastic supporting seat lower support, bonding visco-elastic damping material layer thickness is 0.3mm, restraint layer aluminium plate thickness is 0.4mm.
4. a kind of sound insulation vibration damping high speed train floor panel structure according to claim 1, is characterized in that: described sound insulating pad thickness is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161745.6A CN103935373B (en) | 2014-04-22 | 2014-04-22 | A kind of sound insulation vibration damping bullet train floor panel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410161745.6A CN103935373B (en) | 2014-04-22 | 2014-04-22 | A kind of sound insulation vibration damping bullet train floor panel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103935373A true CN103935373A (en) | 2014-07-23 |
| CN103935373B CN103935373B (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410161745.6A Expired - Fee Related CN103935373B (en) | 2014-04-22 | 2014-04-22 | A kind of sound insulation vibration damping bullet train floor panel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103935373B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057966A (en) * | 2014-06-03 | 2014-09-24 | 长春轨道客车股份有限公司 | Environment-friendly sound insulating high speed train floor structure |
| CN104290765A (en) * | 2014-10-28 | 2015-01-21 | 南车石家庄车辆有限公司 | Composite floor of railroad box car |
| CN105270424A (en) * | 2014-07-25 | 2016-01-27 | Ife-威奥轨道车辆门系统（青岛）有限公司 | Door structure for railway vehicle and railway vehicle with door structure |
| CN105365835A (en) * | 2015-11-25 | 2016-03-02 | 长春轨道客车股份有限公司 | Novel high-speed train shock-absorption and noise-reduction floor structure |
| CN108597488A (en) * | 2018-03-15 | 2018-09-28 | 华东交通大学 | A kind of bullet train floor |
| CN109353485A (en) * | 2018-10-16 | 2019-02-19 | 上海交通大学 | Air purifier for pressurized cabin of ship and its vibration and noise reducing optimization method |
| CN109398390A (en) * | 2018-09-13 | 2019-03-01 | 中车唐山机车车辆有限公司 | The installation method of high-speed EMUs modular floor and modular floor |
| CN114537455A (en) * | 2022-03-18 | 2022-05-27 | 中车唐山机车车辆有限公司 | Light high-sound-insulation floor for motor train unit and design method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001138908A (en) * | 1999-11-12 | 2001-05-22 | Showa Alum Corp | Soundproofing damping material |
| DE102004005190A1 (en) * | 2004-02-02 | 2005-08-25 | Brenner, Hendrik | Method for producing a double plate involves positioning of a honeycomb structure on a bottom plate, filling of this structure with a polyurethane foam, and covering the resultant structure with a top plate |
| CN201620548U (en) * | 2010-03-26 | 2010-11-03 | 杭州龙邦合金科技有限公司 | Foam aluminum plate veneered with aluminum plate |
| CN202508097U (en) * | 2012-01-13 | 2012-10-31 | 长春轨道客车股份有限公司 | Floor structure with high sound insulating capability |
| CN202541654U (en) * | 2011-12-31 | 2012-11-21 | 湖南晟通科技集团有限公司 | Whole floor board of passenger automobile |
| WO2013050069A1 (en) * | 2011-10-05 | 2013-04-11 | Bombardier Transportation Gmbh | Rail vehicle having a sound-insulated and vibration-insulated room-within-a-room cab |
| CN203819245U (en) * | 2014-04-22 | 2014-09-10 | 长春轨道客车股份有限公司 | Sound-insulation vibration-attenuation high-speed train floor structure |
| CN104057966A (en) * | 2014-06-03 | 2014-09-24 | 长春轨道客车股份有限公司 | Environment-friendly sound insulating high speed train floor structure |
-
2014
- 2014-04-22 CN CN201410161745.6A patent/CN103935373B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001138908A (en) * | 1999-11-12 | 2001-05-22 | Showa Alum Corp | Soundproofing damping material |
| DE102004005190A1 (en) * | 2004-02-02 | 2005-08-25 | Brenner, Hendrik | Method for producing a double plate involves positioning of a honeycomb structure on a bottom plate, filling of this structure with a polyurethane foam, and covering the resultant structure with a top plate |
| CN201620548U (en) * | 2010-03-26 | 2010-11-03 | 杭州龙邦合金科技有限公司 | Foam aluminum plate veneered with aluminum plate |
| WO2013050069A1 (en) * | 2011-10-05 | 2013-04-11 | Bombardier Transportation Gmbh | Rail vehicle having a sound-insulated and vibration-insulated room-within-a-room cab |
| CN202541654U (en) * | 2011-12-31 | 2012-11-21 | 湖南晟通科技集团有限公司 | Whole floor board of passenger automobile |
| CN202508097U (en) * | 2012-01-13 | 2012-10-31 | 长春轨道客车股份有限公司 | Floor structure with high sound insulating capability |
| CN203819245U (en) * | 2014-04-22 | 2014-09-10 | 长春轨道客车股份有限公司 | Sound-insulation vibration-attenuation high-speed train floor structure |
| CN104057966A (en) * | 2014-06-03 | 2014-09-24 | 长春轨道客车股份有限公司 | Environment-friendly sound insulating high speed train floor structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057966A (en) * | 2014-06-03 | 2014-09-24 | 长春轨道客车股份有限公司 | Environment-friendly sound insulating high speed train floor structure |
| CN105270424A (en) * | 2014-07-25 | 2016-01-27 | Ife-威奥轨道车辆门系统（青岛）有限公司 | Door structure for railway vehicle and railway vehicle with door structure |
| CN104290765A (en) * | 2014-10-28 | 2015-01-21 | 南车石家庄车辆有限公司 | Composite floor of railroad box car |
| CN105365835A (en) * | 2015-11-25 | 2016-03-02 | 长春轨道客车股份有限公司 | Novel high-speed train shock-absorption and noise-reduction floor structure |
| CN108597488A (en) * | 2018-03-15 | 2018-09-28 | 华东交通大学 | A kind of bullet train floor |
| CN109398390A (en) * | 2018-09-13 | 2019-03-01 | 中车唐山机车车辆有限公司 | The installation method of high-speed EMUs modular floor and modular floor |
| CN109353485A (en) * | 2018-10-16 | 2019-02-19 | 上海交通大学 | Air purifier for pressurized cabin of ship and its vibration and noise reducing optimization method |
| CN114537455A (en) * | 2022-03-18 | 2022-05-27 | 中车唐山机车车辆有限公司 | Light high-sound-insulation floor for motor train unit and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103935373B (en) | 2016-06-08 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20160608 |