EP1570139A1 - Double-wall acoustic panel - Google Patents
Double-wall acoustic panelInfo
- Publication number
- EP1570139A1 EP1570139A1 EP03789519A EP03789519A EP1570139A1 EP 1570139 A1 EP1570139 A1 EP 1570139A1 EP 03789519 A EP03789519 A EP 03789519A EP 03789519 A EP03789519 A EP 03789519A EP 1570139 A1 EP1570139 A1 EP 1570139A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acoustic
- absorbent
- acoustic panel
- panel according
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002745 absorbent Effects 0.000 claims description 25
- 239000002250 absorbent Substances 0.000 claims description 25
- 238000004049 embossing Methods 0.000 claims description 9
- 239000003190 viscoelastic substance Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000002313 adhesive film Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 5
- 239000011491 glass wool Substances 0.000 abstract description 4
- 229920002799 BoPET Polymers 0.000 abstract description 3
- 239000005041 Mylar™ Substances 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 239000006098 acoustic absorber Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 241000264877 Hippospongia communis Species 0.000 description 6
- 230000005284 excitation Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 2
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
Definitions
- the present invention relates to an acoustic panel with two walls between which is arranged an acoustic absorbent.
- the efficiency of the absorbent can be improved by creating an air space between the acoustic absorbent and the wall which receives the acoustic excitation.
- the present invention relates to an acoustic panel of the aforementioned type, the structure of which makes it possible to advantageously create this air space.
- the invention thus relates to an acoustic panel comprising a first and a second wall between which an acoustic absorbent is disposed, characterized in that, the first wall has, on an internal face directed towards the acoustic absorbent, a plate made of a viscoelastic material, as well as a counterplate, spacing elements (for example parallel ridges, honeycombs, embossing, and / or spikes) being distributed in at least one dimension and creating an air space between the absorbent and the counter plate.
- spacing elements for example parallel ridges, honeycombs, embossing, and / or spikes
- the spacing elements can form a two-dimensional network, for example a grid or a honeycomb or an embossing, or even pins distributed along these two dimensions.
- the grid, the honeycomb or the embossing can constitute a net or a bag inside which the acoustic absorbent is placed.
- the net or the bag may be made of a thermally conductive material so that it constitutes a heat sink between said walls.
- a self-adhesive film carrying said network (for example grid, honeycomb, embossing and / or spikes) can be stuck on the acoustic absorbent, in particular on a packaging of the acoustic absorbent, or on the backplate.
- the counterplate is stiffened by an embossing, ribs which may or may not be parallel, a honeycomb, spikes or bosses.
- the acoustic panel has a first plate 1 which receives the acoustic excitation (arrow F) when the panel is put in place, a second wall 2 and an acoustic absorbent 3, for example glass wool which can be contained in a thin envelope
- the plate 1 has on its internal face a plate 17 of viscoelastic material (for example the “Deltane” material from the company PAULSTRA).
- the air gap is produced using a mechanical spacer constituted by a mesh or an embossing 5, which can be secured to a rigid counter plate 10, or else by an embossed counter plate.
- the shape of the mesh can be any, on the other hand its size must be such that under the action of the pressures which the absorbent undergoes, this one must not exceed the surface defined by the mesh so that it cannot come in contact with the counterplate 10 and that the air knife keeps the desired thickness.
- the nature of the material constituting the mesh is chosen according to the environmental constraints of the envisaged application. This material can be malleable to allow the mesh to conform to complicated shapes, provided that during deformation and under mounting or operating pressures the absorbent 3 cannot come into contact with the counterplate 10.
- the mesh 5 defined can be glued to the internal face of the counter plate 10 taking the precaution that the glue does not fill the mesh of the mesh in order to avoid contact with the acoustic absorbent.
- Absorbent 3 is low density glass wool contained in a thin “Mylar” envelope (registered trademark).
- the spacer can be a mesh of stainless steel wire 0.5 mm in diameter and whose mesh is a square of 10 mm side.
- the reduction in transparency is of the order of 3 to 4 dB.
- the mesh 5 can constitute a net 7 in which the absorbent 3 is placed.
- the plate 1 has on its internal face a plate of viscoelastic material 17 (for example the "Deltane” material from the company PAULSTRA) and a counter plate 10 which is embossed in order to stiffen it and which serves to dampen the vibrations of the plate 1 subjected to excitation.
- a plate of viscoelastic material 17 for example the "Deltane” material from the company PAULSTRA
- This configuration makes it possible to lighten the plywood 10 (and possibly the plate 17) by reducing its thickness while maintaining its stiffness using the inertia of the walls 18 perpendicular to its surface. These serve as spacers to avoid contact of the absorbent with the counterplate ( Figure 9).
- the counter plate 10 can be constituted by a glued plate 20 carrying grooves 18 in one or two dimensions.
- the spacers 18 are ribs of the counterplate 10 formed in one dimension and spaced from each other, in general with a constant pitch.
- the ribs 18 (distributed in one or two dimensions) of the counter plate 10 are sufficiently wide for the plate 17 of viscoelastic material to occupy the hollow part 19 thereof (see in particular the box in FIG. 7 ).
- An aluminum wall 1 of 1.2 mm thick is absorbed on the one hand by a sheet 17 of visco-elastic material 1 mm thick and on the other hand by a flat aluminum counter-plate 10 of 0 , 5 mm thick.
- EXAMPLE 2 A wall 1 of aluminum 1.2 mm thick is absorbed on the one hand by a sheet 17 of visco-elastic material 0.5 mm thick and on the other hand by a counter plate 10 of aluminum of 0.3 mm thick embossed with a square mesh of 10 mm side and a rib height of 2 mm (See Figure 6).
- FIG. 8 illustrates, for an excitation of 0.1 g of an aluminum plate 1 (210 x 230 mm) 1, 2 mm thick, the level of vertical acceleration in m / s 2 as a function of the frequency F (between 0 and 3000 Hz), for: Curve I: said plate 1 only; Curve II: said plate 1 damped by a sheet 17 of visco-elastic material (“Deltane”) 1 mm thick and a flat counter-plate 10 made of aluminum 0.5 mm thick;
- Deltane visco-elastic material
- Curve III said plate 1 damped by a sheet 17 of visco-elastic material (“Deltane”) 0.5 mm thick, covered in its center with an aluminum counter-plate 10 (150 mm x 15 mm) 0.3 mm thick embossed with a square mesh of 10 mm side and a rib height of 2 mm.
- Deltane visco-elastic material
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0215119 | 2002-12-02 | ||
FR0215119A FR2847919B1 (en) | 2002-12-02 | 2002-12-02 | DOUBLE-WALL ACOUSTIC PANEL |
PCT/FR2003/003513 WO2004053246A1 (en) | 2002-12-02 | 2003-11-27 | Double-wall acoustic panel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1570139A1 true EP1570139A1 (en) | 2005-09-07 |
EP1570139B1 EP1570139B1 (en) | 2006-12-13 |
Family
ID=32309891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03789519A Expired - Lifetime EP1570139B1 (en) | 2002-12-02 | 2003-11-27 | Double-wall acoustic panel |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060124388A1 (en) |
EP (1) | EP1570139B1 (en) |
AT (1) | ATE348226T1 (en) |
DE (1) | DE60310451T2 (en) |
ES (1) | ES2279214T3 (en) |
FR (1) | FR2847919B1 (en) |
WO (1) | WO2004053246A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7503428B1 (en) * | 2002-06-12 | 2009-03-17 | L.J. Avalon, L.L.C. | Acoustic panel |
US8495851B2 (en) * | 2004-09-10 | 2013-07-30 | Serious Energy, Inc. | Acoustical sound proofing material and methods for manufacturing same |
FR2889616B1 (en) * | 2005-08-02 | 2008-05-30 | Hutchinson Sa | ACOUSTIC PANEL OF TYPE A BLADE OF AIR |
AT503236B1 (en) * | 2005-10-28 | 2009-01-15 | Berger Johann | BOARD OD. DGL., THEIR MANUFACTURE AND USE |
US8191678B2 (en) * | 2006-01-19 | 2012-06-05 | Se Electronics International, Inc. | Apparatus for absorbing acoustical energy and use thereof |
US7604095B2 (en) * | 2006-06-01 | 2009-10-20 | General Electric Company | Thermal-acoustic enclosure |
US8424251B2 (en) * | 2007-04-12 | 2013-04-23 | Serious Energy, Inc. | Sound Proofing material with improved damping and structural integrity |
US8181738B2 (en) * | 2007-04-24 | 2012-05-22 | Serious Energy, Inc. | Acoustical sound proofing material with improved damping at select frequencies and methods for manufacturing same |
US8397864B2 (en) * | 2007-04-24 | 2013-03-19 | Serious Energy, Inc. | Acoustical sound proofing material with improved fire resistance and methods for manufacturing same |
US8028802B2 (en) * | 2008-06-30 | 2011-10-04 | General Electric Company | Method and system for damped acoustic panels |
TWI651455B (en) * | 2009-01-14 | 2019-02-21 | Kuraray Co., Ltd | Sound insulation board, sound insulation structure and sound insulation method |
US8074766B1 (en) | 2009-09-08 | 2011-12-13 | Creative Composites, Ltd | Multi-layer sound attenuating acoustic panel |
JP5459838B2 (en) * | 2009-09-18 | 2014-04-02 | ニチアス株式会社 | Soundproof cover and manufacturing method thereof |
US9163398B2 (en) * | 2013-05-17 | 2015-10-20 | Purdue Research Foundation | Sound barrier systems |
US10580396B1 (en) | 2017-04-07 | 2020-03-03 | The United States Of America As Represented By The Secretary Of The Navy | Acoustically stiff wall |
US10300964B2 (en) * | 2017-06-19 | 2019-05-28 | Ford Motor Company | Vehicle tailgate |
DE102017124754A1 (en) * | 2017-10-23 | 2019-04-25 | Carcoustics Techconsult Gmbh | Insulating element for acoustic shielding of a component with improved heat transfer and arrangement of a plurality of such insulating elements |
US11753818B1 (en) * | 2019-08-07 | 2023-09-12 | Kelly B. McKenna | Acoustic material frame and method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1099185A (en) * | 1964-06-01 | 1968-01-17 | Baldwin Ehret Hill Inc | Acoustical panels |
US4038790A (en) * | 1976-09-16 | 1977-08-02 | Paisley John C | Partition structure |
US4425980A (en) * | 1981-12-14 | 1984-01-17 | The Boeing Company | Beam dampers for damping the vibrations of the skin of reinforced structures |
US4988406A (en) * | 1986-11-17 | 1991-01-29 | Soltech, Inc. | Insulation device and method of making same |
DE3643480A1 (en) * | 1986-12-19 | 1988-07-07 | Pape Hans | SOUND ABSORBING WALL OR CEILING COVERING |
CH679167A5 (en) * | 1989-06-05 | 1991-12-31 | Matec Holding | Sound absorbent constructional component - has grid between vibratory and absorbent mouldings, dividing former into several zones |
DE4226342C1 (en) * | 1992-08-08 | 1993-06-24 | Guenther 8931 Mickhausen De Wolff | Prodn. of insulating material - using sheep wool treated with boron salt soln. |
DE4317239A1 (en) * | 1993-05-24 | 1994-12-01 | Suleiman Rateb | Absorber, filter and heat-insulation mats consisting of biofibres and biomass |
DE19502378A1 (en) * | 1994-08-10 | 1996-02-15 | Gefinex Jackon Gmbh | Acoustic insulation plate |
US20020134615A1 (en) * | 2001-02-21 | 2002-09-26 | Herreman Kevin Michael | Noise reduction system for kitchen |
US7063184B1 (en) * | 2002-06-12 | 2006-06-20 | Lahnie Johnson | Sound reducing panel |
-
2002
- 2002-12-02 FR FR0215119A patent/FR2847919B1/en not_active Expired - Fee Related
-
2003
- 2003-11-27 DE DE60310451T patent/DE60310451T2/en not_active Expired - Lifetime
- 2003-11-27 AT AT03789519T patent/ATE348226T1/en not_active IP Right Cessation
- 2003-11-27 ES ES03789519T patent/ES2279214T3/en not_active Expired - Lifetime
- 2003-11-27 US US10/537,036 patent/US20060124388A1/en not_active Abandoned
- 2003-11-27 WO PCT/FR2003/003513 patent/WO2004053246A1/en active IP Right Grant
- 2003-11-27 EP EP03789519A patent/EP1570139B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004053246A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2847919A1 (en) | 2004-06-04 |
US20060124388A1 (en) | 2006-06-15 |
ATE348226T1 (en) | 2007-01-15 |
EP1570139B1 (en) | 2006-12-13 |
DE60310451D1 (en) | 2007-01-25 |
ES2279214T3 (en) | 2007-08-16 |
WO2004053246A1 (en) | 2004-06-24 |
DE60310451T2 (en) | 2007-10-11 |
FR2847919B1 (en) | 2005-11-11 |
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