FR3088132A1 - DUCTILE ACOUSTIC PANEL - Google Patents
DUCTILE ACOUSTIC PANEL Download PDFInfo
- Publication number
- FR3088132A1 FR3088132A1 FR1871359A FR1871359A FR3088132A1 FR 3088132 A1 FR3088132 A1 FR 3088132A1 FR 1871359 A FR1871359 A FR 1871359A FR 1871359 A FR1871359 A FR 1871359A FR 3088132 A1 FR3088132 A1 FR 3088132A1
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- Prior art keywords
- acoustic panel
- core
- panel
- acoustic
- ductile
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/10—Next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Architecture (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Textile Engineering (AREA)
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Abstract
L'invention concerne un dispositif permettant de disposer d'un panneau acoustique ductile, donc déformable manuellement afin d'adapter sa forme à son environnement. Il est constitué d'une âme (1) en matériau ductile, qui est intercalée entre deux couches externes 12A et 12B en matériau amortissant, chaque couche amortissante étant fixée sur l'âme, et entre elles par une couche de colle 13. Le dispositif selon l'invention est particulièrement destiné à corriger l'acoustique dans les bâtiments ou des locaux tels que les bâtiments industriels ou destinés au public (« open spaces », salles de conférences, salles de spectacles, salles de classes, locaux commerciaux, salles de restaurants , halls de gares, bureaux, hôpitaux...).The invention relates to a device making it possible to have a ductile acoustic panel, therefore manually deformable in order to adapt its shape to its environment. It consists of a core (1) of ductile material, which is interposed between two external layers 12A and 12B of damping material, each damping layer being fixed on the core, and between them by a layer of adhesive 13. The device according to the invention is particularly intended to correct the acoustics in buildings or premises such as industrial buildings or intended for the public ("open spaces", conference rooms, performance halls, classrooms, commercial premises, meeting rooms restaurants, station halls, offices, hospitals ...).
Description
DescriptionDescription
Titre de l’invention : Panneau acoustique ductileTitle of the invention: Ductile acoustic panel
1/ DOMAINE DE L’INVENTION [0001] L’invention se rapporte au domaine général de l’acoustique.1 / FIELD OF THE INVENTION The invention relates to the general field of acoustics.
[0002] L’invention concerne plus particulièrement une structure de panneau destiné à corriger l’acoustique d’une pièce. Un tel panneau acoustique peut être utilisé dans les bâtiments ou des locaux dans lesquels une correction acoustique est nécessaire, tels que les bâtiments industriels ou destinés au public (salles de conférences, salles de spectacles, salles de classes, locaux commerciaux, salles de restaurants, halls de gares, bureaux, hôpitaux...).The invention relates more particularly to a panel structure intended to correct the acoustics of a room. Such an acoustic panel can be used in buildings or premises in which acoustic correction is necessary, such as industrial buildings or buildings intended for the public (conference rooms, performance halls, classrooms, commercial premises, restaurant rooms, station halls, offices, hospitals ...).
2/ ARRIERE PLAN TECHNOLOGIQUE [0003] L’utilisation de panneaux acoustiques est fréquente dans les milieux rencontrant des niveaux de bruits élevés.2 / TECHNOLOGICAL BACKGROUND [0003] The use of acoustic panels is frequent in environments encountering high levels of noise.
[0004] De tels panneaux acoustiques se posent dans les bâtiments comme cloisons ou bien le long d’une cloison ou d’un plafond, avec ou sans espace par rapport à la cloison ou au plafond.Such acoustic panels are installed in buildings as partitions or along a partition or a ceiling, with or without space relative to the partition or the ceiling.
[0005] De tels panneaux acoustiques visent à corriger l’acoustique d’une pièce et atténuer les bruits, de façon à ce que l’activité qui s’y déroule se passe dans les meilleures conditions possibles.Such acoustic panels aim to correct the acoustics of a room and attenuate noise, so that the activity that takes place there takes place in the best possible conditions.
[0006] Ces panneaux acoustiques sont classiquement constitués par une âme absorbante en laine de verre ou en laine de roche munis, côté apparent au moins, d’une couche de parement constitué d’un voile en fibre de verre qui lui confère un aspect fini décoratif.These acoustic panels are conventionally constituted by an absorbent core of glass wool or rock wool provided, on the visible side at least, with a facing layer consisting of a fiberglass veil which gives it a finished appearance. decorative.
[0007] Ces panneaux acoustiques font constamment l’objet d’améliorations en vue d’augmenter leurs performances, toutefois cette augmentation de leurs performances s’accompagne également d’une augmentation importante de leur épaisseur, de leur poids ou encore de leur prix.These acoustic panels are constantly being improved in order to increase their performance, however this increase in their performance is also accompanied by a significant increase in their thickness, their weight or even their price.
[0008] Par ailleurs, certains de ces panneaux présentent un cadre de support fabriqué habituellement en bois ou en aluminium. Par nature, ces matériaux présentent des propriétés d’absorption acoustiques faibles ou nulles. En outre, la surface du cadre représente un pourcentage non négligeable de la surface totale du panneau. Par conséquent, une telle structure de support diminue de façon relativement importante l’efficacité acoustique du panneau.[0008] Furthermore, some of these panels have a support frame usually made of wood or aluminum. By their nature, these materials have little or no sound absorption properties. In addition, the area of the frame represents a significant percentage of the total area of the panel. Consequently, such a support structure relatively significantly reduces the acoustic efficiency of the panel.
[0009] Par ailleurs, certains de ces panneaux présentent une structure de type sandwich, constituée d’une âme à structure alvéolaire (dite en nid d’abeille, en matériaux choisis parmi le carton, le papier, et l’aramide), ouverte sur une face. La face ouverte et la face fermée de l’âme étant recouverte par une peau en matériau amortissant. En outre, cette structure alvéolaire en matériaux non ductiles, ne permet donc, par définition, aucune déformation plastique. Par conséquent, une telle structure ne peut aucunement être déformée pour s’adapter à son environnement.In addition, some of these panels have a sandwich type structure, consisting of a honeycomb core (called honeycomb, made of materials chosen from cardboard, paper, and aramid), open on one side. The open face and the closed face of the core being covered by a skin of shock absorbing material. In addition, this honeycomb structure made of non-ductile materials, therefore, by definition, does not allow any plastic deformation. Consequently, such a structure cannot be deformed in any way to adapt to its environment.
3/ OBJECTIFS DE L’INVENTION [0010] L’invention, dans au moins un mode de réalisation, a notamment pour objectif de pallier au moins certains inconvénients de l’état de la technique.3 / OBJECTIVES OF THE INVENTION The invention, in at least one embodiment, aims in particular to overcome at least certain drawbacks of the state of the art.
[0011] Plus précisément, dans au moins un mode de réalisation de l’invention, un objectif est de fournir un nouveau type de panneau acoustique capable de se déformer plastiquement pour s’adapter à son environnement.More specifically, in at least one embodiment of the invention, an objective is to provide a new type of acoustic panel capable of being plastically deformed to adapt to its environment.
[0012] Un autre objectif, dans au moins un mode de réalisation de l’invention, est de fournir un panneau acoustique garantissant une bonne efficacité acoustique pour un poids très faible.Another objective, in at least one embodiment of the invention, is to provide an acoustic panel guaranteeing good acoustic efficiency for a very low weight.
[0013] Un autre objectif, dans au moins un mode de réalisation de l’invention, est de fournir un panneau acoustique garantissant une bonne rigidité pour un poids très faible.Another objective, in at least one embodiment of the invention, is to provide an acoustic panel guaranteeing good rigidity for a very low weight.
[0014] Un autre objectif, dans au moins un mode de réalisation de l’invention, est de fournir un panneau acoustique composé de matériaux écologiques et entièrement recyclables.Another objective, in at least one embodiment of the invention, is to provide an acoustic panel composed of ecological materials and entirely recyclable.
[0015] Un autre objectif, dans au moins un mode de réalisation de l’invention, est de fournir une technique de fabrication d’un tel panneau qui soit peu coûteuse à mettre en œuvre. 4/ EXPOSE DE L’INVENTION [0016] L’invention parvient à remplir tout ou partie de ses objectifs grâce à un panneau acoustique de type nouveau.Another objective, in at least one embodiment of the invention, is to provide a technique for manufacturing such a panel which is inexpensive to implement. 4 / PRESENTATION OF THE INVENTION The invention manages to fulfill all or part of its objectives thanks to a new type of acoustic panel.
[0017] Selon l’invention, le panneau acoustique comprend une âme constituée par exemple d’un maillage de fils de type grillage ou d’une plaque ajourée. Cette âme est intercalée entre deux couches externes en matériau amortissant, chaque couche amortissante étant fixée sur l’âme, et entre elles par une couche de colle, par exemple au travers des interstices du maillage ou des jours de la plaque.According to the invention, the acoustic panel comprises a core consisting for example of a mesh of wire of the mesh type or of an openwork plate. This core is interposed between two external layers of damping material, each damping layer being fixed on the core, and between them by a layer of adhesive, for example through the interstices of the mesh or of the days of the plate.
[0018] L’âme est constituée en matériau ductile (présente une déformation plastique), ce qui permet au panneau acoustique d’être déformé manuellement et de conserver cette déformation. Ainsi, un tel panneau acoustique peut être plat ou présenter des déformations lui permettant de s’adapter à son environnement.The core is made of ductile material (has plastic deformation), which allows the acoustic panel to be deformed manually and to keep this deformation. Thus, such an acoustic panel can be flat or present deformations allowing it to adapt to its environment.
[0019] L’âme est suffisamment rigide pour supporter les deux couches externes de matériau amortissant, ce qui donne à l’ensemble du panneau des qualités de légèreté, de rigidité, pour une très faible épaisseur. Aussi, ce panneau acoustique est suffisamment rigide, ce qui évite l’addition d’une structure périphérique de type cadre, et qui apporte des plus-values aussi bien sur le design que sur l’efficacité acoustique (plus grande surface effective).The core is rigid enough to support the two outer layers of damping material, which gives the entire panel qualities of lightness, rigidity, for a very small thickness. Also, this acoustic panel is sufficiently rigid, which avoids the addition of a peripheral frame-like structure, and which provides added value both in design and in acoustic efficiency (larger effective area).
[0020] La mise en œuvre de l’assemblage entre l’âme et les couches externes est un collage sous presse, ce qui simplifie grandement la mise en œuvre. Les couches externes sont collées sur l’âme, mais aussi entre elles au travers des interstices, ce qui permet un assemblage robuste et durable.The implementation of the assembly between the core and the outer layers is a press bonding, which greatly simplifies the implementation. The outer layers are glued to the core, but also to each other through interstices, which allows a robust and durable assembly.
[0021] L’âme comme les couches externes sont composés de matériaux naturels pouvant être recyclés, ce qui donne à l’ensemble du panneau des caractéristiques écologiques fondées.Both the core and the outer layers are made of natural materials that can be recycled, which gives the entire panel based ecological characteristics.
[0022] L’âme est centrée, de même forme et de taille inférieure aux couches amortissantes qui la recouvrent, de sorte que ces couches amortissantes débordent sur le pourtour et soient collées directement entre elles, ce qui permet de ne pas rendre visible l’âme sur les tranches du panneau acoustique.The core is centered, of the same shape and of size smaller than the shock absorbing layers which cover it, so that these shock absorbing layers overflow around the periphery and are bonded directly to each other, which makes it possible not to make visible the core on the edges of the acoustic panel.
[0023] Ce panneau peut être disposé proche d’un mur ou d’un plafond (il est destiné notamment à être utilisé comme élément de plafonds suspendus), être utilisé comme panneau de séparation ou de délimitation intérieure (formant ainsi un paravent acoustique), ou être utilisé pour la confection d’objets à suspendre ou à poser, dans des locaux à usage de bureaux, par exemple.This panel can be arranged close to a wall or a ceiling (it is intended in particular to be used as an element of suspended ceilings), to be used as a partition or interior delimitation panel (thus forming an acoustic screen) , or be used for making objects to hang or place, in premises used for offices, for example.
[0024] Selon un aspect particulier de l’invention, l’âme est constituée d’une structure ajourée, par exemple d’un maillage de fils de type grillage ou d’une plaque ajourée.According to a particular aspect of the invention, the core consists of an openwork structure, for example a mesh of wire of the mesh type or an openwork plate.
[0025] Selon un aspect particulier de l’invention, l’âme est constituée d’un matériau ou d’une combinaison de matériaux choisi(s) parmi l’acier, l’aluminium, le zinc, le laiton, ou tout autre matériau ductile.According to a particular aspect of the invention, the core is made of a material or a combination of materials chosen from steel, aluminum, zinc, brass, or any other ductile material.
[0026] Selon un aspect particulier de l’invention, lesdites couches externes sont constituées d’un matériau choisi parmi le liège, le lin, le bois, le feutre par exemple.According to a particular aspect of the invention, said outer layers are made of a material chosen from cork, linen, wood, felt for example.
[0027] Selon un aspect particulier de l’invention, avant déformation manuelle, ledit panneau acoustique est de forme plane carrée, rectangulaire, circulaire, ou quelconque.According to a particular aspect of the invention, before manual deformation, said acoustic panel is of square, rectangular, circular, or any planar shape.
5/ DESCRIPTION DETAILLEE DE L’INVENTION5 / DETAILED DESCRIPTION OF THE INVENTION
5.1/ Structure du panneau acoustique [0028] La figure 1 est une vue en coupe schématique d’un panneau acoustique 1 conforme à l’invention.5.1 / Structure of the acoustic panel [0028] Figure 1 is a schematic sectional view of an acoustic panel 1 according to the invention.
[0029] Le panneau acoustique 1, qui est ici de forme plane et s’étend dans le plan x-y, présente une construction en sandwich. Il est constitué d’une âme 11, comprenant par exemples une structure en maillage de fils de type grillage ou bien une plaque ajourée, qui est formée par au moins un matériau ductile.The acoustic panel 1, which is here of planar shape and extends in the x-y plane, has a sandwich construction. It consists of a core 11, comprising for example a mesh structure of wire of the mesh type or an openwork plate, which is formed by at least one ductile material.
[0030] La structure de l’âme 11 est, par exemple réalisée en un matériau ou une combinaison de matériaux choisi(s) parmi l’acier, l’aluminium, le zinc, le laiton, ou tout autre matériau ductile. Le choix de ce matériau est tel que la structure est déformable manuellement.The structure of the core 11 is, for example made of a material or a combination of materials chosen from steel, aluminum, zinc, brass, or any other ductile material. The choice of this material is such that the structure can be deformed manually.
[0031] La figure 2 est une vue de dessus schématique de la structure en maillage de fils de type grillage qui pourrait constituer l’âme 11.Figure 2 is a schematic top view of the mesh-like structure of wire-type wires which could constitute the core 11.
[0032] La structure en maillage de fils de type grillage comprend un ensemble de fils espacés et parallèles 21, perpendiculairement croisé à un second ensemble de fils espacés et parallèles 22. Ces ensembles de fils espacés parallèles s’étendent dans le plan x-y.The mesh-like structure of wire mesh includes a set of spaced and parallel wires 21, perpendicularly crossed to a second set of spaced and parallel wires 22. These sets of parallel spaced wires extend in the x-y plane.
[0033] Les fils formant la structure en maillage de fils de type grillage sont par exemple, de section allant de 0.5 mm à 3 mm.The son forming the mesh structure of wire mesh type are for example, of section ranging from 0.5 mm to 3 mm.
[0034] Les espaces entre les fils de la structure en maillage de type grillage sont par exemple compris entre 5 mm et 50 mm.The spaces between the wires of the mesh-type mesh structure are for example between 5 mm and 50 mm.
[0035] Les figures 3A et 3B sont deux vues de dessus schématiques de la structure en plaque ajourée qui pourraient constituer l’âme 11.Figures 3A and 3B are two schematic top views of the openwork plate structure which could constitute the core 11.
[0036] La structure en plaque ajourée comprend une plaque ajourée dont les jours ont des formes parallélépipédiques rectangles 3A ou circulaires 3B disposés en motifs réguliers. Ces ensembles de jours s’étendent dans le plan x-y.The openwork plate structure comprises an openwork plate whose days have rectangular 3A or circular 3B rectangular shapes arranged in regular patterns. These sets of days extend in the x-y plane.
[0037] Les jours de la plaque sont par exemple, de surfaces allant de 20 mm2 à 1000 mm2.The days of the plate are, for example, areas ranging from 20 mm 2 to 1000 mm 2 .
[0038] Les espaces entre les jours de la plaque sont par exemple compris entre 2 mm et 10 mm.The spaces between the days of the plate are for example between 2 mm and 10 mm.
[0039] Sur la figure 1, les couches externes 12A et 12B peuvent être constituées d’un matériau acoustiquement amortissant tel que le liège, le lin, le bois, le feutre par exemple. La combinaison de certains de ces matériaux peut également être envisagée.In Figure 1, the outer layers 12A and 12B can be made of an acoustically damping material such as cork, linen, wood, felt for example. The combination of some of these materials can also be considered.
[0040] Les couches externes 12A, 12B amortissantes sont fixées de part et d’autre de l’âme par collage, en utilisant une couche de colle 13 de type biologique par exemple (la couche de colle présente, par exemple, une épaisseur de 1,5mm).The shock absorbing outer layers 12A, 12B are fixed on either side of the core by bonding, using a layer of adhesive 13 of biological type for example (the adhesive layer has, for example, a thickness of 1.5mm).
[0041] Il est à noter que le panneau acoustique conforme à l’invention ne met pas en œuvre de cadre de support.It should be noted that the acoustic panel according to the invention does not use a support frame.
[0042] Le panneau acoustique conforme à l’invention présente une épaisseur « e » inférieure à 100 mm. De préférence, son épaisseur « e » est inférieure à 15 mm. Préférentiellement, son épaisseur « e » se situe entre 6 mm et 14 mm.The acoustic panel according to the invention has a thickness "e" of less than 100 mm. Preferably, its thickness "e" is less than 15 mm. Preferably, its thickness "e" is between 6 mm and 14 mm.
[0043] Dans certain cas d’applications, l’âme est centrée, de même forme et de taille inférieure aux couches amortissantes qui la recouvrent, de sorte que ces couches amortissantes débordent sur le pourtour et soient collées directement entre elles.In certain applications, the core is centered, of the same shape and of size smaller than the shock absorbing layers which cover it, so that these shock absorbing layers extend over the periphery and are bonded directly to each other.
[0044] 5.2/ Mise en œuvre du panneau acoustique et avantages [0045] La figure 4 est un schéma de principe illustrant la mise en œuvre du panneau acoustique 1, tel que décrit en relation avec la figure 1, dans une pièce et son interaction avec un son issu d’une source sonore S, située d’un des deux côtés des couches amortissantes 12A et 12B constituant la face avant ou arrière du panneau acoustique.5.2 / Implementation of the acoustic panel and advantages [0045] Figure 4 is a block diagram illustrating the implementation of the acoustic panel 1, as described in relation to Figure 1, in a room and its interaction with a sound coming from a sound source S, located on one of the two sides of the damping layers 12A and 12B constituting the front or rear face of the acoustic panel.
[0046] L’énergie sonore incidente SI est en partie réfléchie par le panneau acoustique 1, l’énergie réfléchie S2 revenant du côté de la source S est en partie absorbée transver salement dans le panneau acoustique 1 (l’énergie absorbée est référencée S3). Une autre partie de l’énergie sonore incidente SI est transmise à travers le panneau 1 (l’énergie transmise est référencée S4).The incident sound energy SI is partly reflected by the acoustic panel 1, the reflected energy S2 returning from the source S side is partly absorbed dirty into the acoustic panel 1 (the absorbed energy is referenced S3 ). Another part of the incident sound energy SI is transmitted through the panel 1 (the transmitted energy is referenced S4).
[0047] La figure 5 est un schéma de principe illustrant la mise en œuvre du panneau acoustique 1, tel que décrit en relation avec la figure 1, dans une pièce et son interaction avec un son issu d’une source sonore S orientée vers une des quatre tranches du panneau acoustique.Figure 5 is a block diagram illustrating the implementation of the acoustic panel 1, as described in relation to Figure 1, in a room and its interaction with a sound from a sound source S oriented towards a of the four sections of the acoustic panel.
[0048] L’énergie sonore incidente SI est en partie réfléchie par le panneau acoustique 1, l’énergie réfléchie S2 revenant du côté de la source S est en très grande partie absorbée longitudinalement dans le panneau acoustique 1 (l’énergie absorbée est référencée S3). Une autre infime partie de l’énergie sonore incidente SI est transmise à travers le panneau 1 (l’énergie transmise est référencée S4).The incident sound energy SI is partly reflected by the acoustic panel 1, the reflected energy S2 returning from the side of the source S is very largely absorbed longitudinally in the acoustic panel 1 (the absorbed energy is referenced S3). Another tiny part of the incident sound energy SI is transmitted through the panel 1 (the transmitted energy is referenced S4).
[0049] En d’autres termes, cette structure particulière du panneau acoustique 1 (sans protection de l’épaisseur par un cadre rigide) permet d’optimiser la performance de l’absorption longitudinale. (Selon les axes x, y).In other words, this particular structure of the acoustic panel 1 (without protection of the thickness by a rigid frame) makes it possible to optimize the performance of the longitudinal absorption. (According to the x, y axes).
[0050] La structure particulière du panneau acoustique 1, décrite précédemment et présentant notamment une structure, ductile, en maillage de fils de type grillage ou en plaque ajourée, permet de modifier la forme de la surface du panneau acoustique.The particular structure of the acoustic panel 1, described above and having in particular a structure, ductile, in mesh of wire of the mesh type or in perforated plate, makes it possible to modify the shape of the surface of the acoustic panel.
[0051] En d’autres termes, cette structure particulière du panneau acoustique, et notamment la caractéristique ductile de l’âme, permet d’adapter la forme du panneau acoustique à son environnement et d’obtenir des formes personnalisées.In other words, this particular structure of the acoustic panel, and in particular the ductile characteristic of the core, makes it possible to adapt the shape of the acoustic panel to its environment and to obtain personalized shapes.
5.3/ Exemples de formes du panneau acoustique [0052] Les figures 6a, 6b et 6c illustrent un panneau acoustique 1 selon un premier mode de réalisation, avant déformation de leur surface, comme expliqué précédemment.5.3 / Examples of shapes of the acoustic panel FIGS. 6a, 6b and 6c illustrate an acoustic panel 1 according to a first embodiment, before deformation of their surface, as explained previously.
[0053] Le panneau acoustique 1 peut présenter, par exemple, une forme parallélépipédique rectangle (figure 6a), le panneau peut présenter une autre forme, telle une forme carrée.The acoustic panel 1 may have, for example, a rectangular parallelepiped shape (Figure 6a), the panel may have another shape, such as a square shape.
[0054] Le panneau acoustique 1 peut présenter, par exemple, une forme circulaire (figure 6b).The acoustic panel 1 may have, for example, a circular shape (Figure 6b).
[0055] Le panneau acoustique 1 peut présenter, par exemple, une forme quelconque (figure 6c).The acoustic panel 1 may have, for example, any shape (Figure 6c).
[0056] A partir de ces formes planes, la structure particulière du panneau acoustique composé d’une âme (en acier par exemple) ductile, permet d’adapter la forme de la surface du panneau acoustique à son environnement et d’obtenir des formes personnalisées.From these flat shapes, the particular structure of the acoustic panel composed of a ductile core (in steel for example), makes it possible to adapt the shape of the surface of the acoustic panel to its environment and to obtain shapes personalized.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1871359A FR3088132A1 (en) | 2018-11-03 | 2018-11-03 | DUCTILE ACOUSTIC PANEL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1871359A FR3088132A1 (en) | 2018-11-03 | 2018-11-03 | DUCTILE ACOUSTIC PANEL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3088132A1 true FR3088132A1 (en) | 2020-05-08 |
Family
ID=68281465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1871359A Withdrawn FR3088132A1 (en) | 2018-11-03 | 2018-11-03 | DUCTILE ACOUSTIC PANEL |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3088132A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3574108A (en) * | 1965-04-21 | 1971-04-06 | American Cyanamid Co | Sound deadening metal laminate |
| GB2179594A (en) * | 1985-08-27 | 1987-03-11 | Greiner Schaumstoffwerk | A sandwich-like soundproofing element and method of manufacture |
| US6123172A (en) * | 1999-07-22 | 2000-09-26 | Lydall, Inc. | Thermal and acoustical insulating shield |
| EP1643485A2 (en) * | 2004-10-01 | 2006-04-05 | Guarto - Guarnizioni Torino A Responsabilita' Limitata | Acoustically insulating material, acoustically absorbing material, acoustically damping material |
| US20160059799A1 (en) * | 2014-09-02 | 2016-03-03 | Hyundai Motor Company | Multi-layered noise absorbing and insulating material having air-permeability |
-
2018
- 2018-11-03 FR FR1871359A patent/FR3088132A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3574108A (en) * | 1965-04-21 | 1971-04-06 | American Cyanamid Co | Sound deadening metal laminate |
| GB2179594A (en) * | 1985-08-27 | 1987-03-11 | Greiner Schaumstoffwerk | A sandwich-like soundproofing element and method of manufacture |
| US6123172A (en) * | 1999-07-22 | 2000-09-26 | Lydall, Inc. | Thermal and acoustical insulating shield |
| EP1643485A2 (en) * | 2004-10-01 | 2006-04-05 | Guarto - Guarnizioni Torino A Responsabilita' Limitata | Acoustically insulating material, acoustically absorbing material, acoustically damping material |
| US20160059799A1 (en) * | 2014-09-02 | 2016-03-03 | Hyundai Motor Company | Multi-layered noise absorbing and insulating material having air-permeability |
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