FR3120732B1 - Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue - Google Patents

Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue Download PDF

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Publication number
FR3120732B1
FR3120732B1 FR2102317A FR2102317A FR3120732B1 FR 3120732 B1 FR3120732 B1 FR 3120732B1 FR 2102317 A FR2102317 A FR 2102317A FR 2102317 A FR2102317 A FR 2102317A FR 3120732 B1 FR3120732 B1 FR 3120732B1
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France
Prior art keywords
sound absorption
absorption structure
manufacturing
radial tabs
acoustic
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Active
Application number
FR2102317A
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English (en)
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FR3120732A1 (fr
Inventor
Florian Ravise
Théo Riccobene
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Airbus Operations SAS
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Airbus Operations SAS
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Publication date
Application filed by Airbus Operations SAS filed Critical Airbus Operations SAS
Priority to FR2102317A priority Critical patent/FR3120732B1/fr
Priority to US17/685,594 priority patent/US12106744B2/en
Publication of FR3120732A1 publication Critical patent/FR3120732A1/fr
Application granted granted Critical
Publication of FR3120732B1 publication Critical patent/FR3120732B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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
    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—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 discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F02K1/827—Sound absorbing structures or liners
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C7/00—Structures or fairings not otherwise provided for
    • B64C7/02—Nacelles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/24—Heat or noise insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/28—Three-dimensional patterned
    • F05D2250/283—Three-dimensional patterned honeycomb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue L'invention a pour objet un procédé de fabrication d’une structure d’absorption acoustique (26) comprenant une pluralité d’éléments acoustiques (34), chacun d’eux étant positionné dans l’une des alvéoles (36) d’un panneau alvéolaire (30). Le procédé comprend une étape de fabrication d’éléments acoustiques (34) pourvus d’au moins deux languettes radiales (50, 52), une étape de fabrication d’un panneau alvéolaire (30) pourvu de lumières (54, 56) configurées pour loger les languettes radiales (50, 52) de chaque élément acoustique (34), une étape d’insertion en force de chaque élément acoustique (34) dans une des alvéoles (36) du panneau alvéolaire (30) jusqu’à ce que les languettes radiales (50, 52) se logent dans les lumières (54, 56). L’invention a également pour objet une structure d’absorption acoustique obtenue à partir de ce procédé. Ce procédé de fabrication permet de pouvoir robotiser la mise en place des éléments acoustiques dans le panneau alvéolaire tout en limitant la masse embarquée. Figure 7
FR2102317A 2021-03-10 2021-03-10 Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue Active FR3120732B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2102317A FR3120732B1 (fr) 2021-03-10 2021-03-10 Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue
US17/685,594 US12106744B2 (en) 2021-03-10 2022-03-03 Method for manufacturing an acoustic absorption structure, and acoustic absorption structure obtained in this way

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102317A FR3120732B1 (fr) 2021-03-10 2021-03-10 Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue
FR2102317 2021-03-10

Publications (2)

Publication Number Publication Date
FR3120732A1 FR3120732A1 (fr) 2022-09-16
FR3120732B1 true FR3120732B1 (fr) 2023-10-27

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FR2102317A Active FR3120732B1 (fr) 2021-03-10 2021-03-10 Procédé de fabrication d’une structure d’absorption acoustique, structure d’absorption acoustique ainsi obtenue

Country Status (2)

Country Link
US (1) US12106744B2 (fr)
FR (1) FR3120732B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3107856B1 (fr) * 2020-03-04 2022-02-04 Safran Nacelles Procédé de fabrication d’une structure à âmes alvéolaires pour nacelle de turboréacteur
FR3143169B1 (fr) * 2022-12-07 2025-02-21 Safran Nacelles Ame alveolaire optimisee et panneau d’attenuation acoustique la comprenant pour une turbomachine d’aeronef
EP4411725A1 (fr) * 2023-01-31 2024-08-07 Airbus SAS Structure alvéolaire d'un panneau d atténuation acoustique comprenant au moins un élément rapporté et configuré pour vibrer à une fréquence souhaitée, procédé de fabrication de ladite structure alvéolaire
FR3158578A1 (fr) * 2024-01-24 2025-07-25 Airbus Operations Structure d’absorption acoustique comportant au moins un tube de partition pour former deux types de résonateurs, procédé de fabrication d’une telle structure
EP4685787A1 (fr) * 2024-07-25 2026-01-28 Airbus Operations (S.A.S.) Structure d'absorption acoustique comprenant un système de cloisonnement pourvu d'au moins un pied
FR3165350A1 (fr) * 2024-08-05 2026-02-06 Safran Nacelles Composant acoustique ajustable pour assemblage avec un corps multicellulaire

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2261872B1 (fr) * 1974-02-26 1976-06-25 Snecma
FR2781719B1 (fr) * 1998-07-30 2000-09-08 Hispano Suiza Sa Structure de nid d'abeille, notamment pour absorption du son, et son procede de fabrication
FR2815900B1 (fr) * 2000-10-31 2003-07-18 Eads Airbus Sa Panneau sandwich reducteur de bruit, notamment pour turboreacteur d'aeronef
US8047329B1 (en) * 2010-08-13 2011-11-01 Rohr, Inc. System and method for noise suppression
US8997923B2 (en) * 2013-08-12 2015-04-07 Hexcel Corporation Sound wave guide for use in acoustic structures
FR3026122B1 (fr) * 2014-09-24 2019-08-09 Safran Aircraft Engines Panneau de traitement acoustique
JP2019528195A (ja) * 2016-08-19 2019-10-10 スリーエム イノベイティブ プロパティズ カンパニー セル壁のいくつかが開口を有する接続されたセルからなるコアを含む吸音パネル
FR3082987B1 (fr) * 2018-06-25 2020-09-18 Airbus Operations Sas Structure constituant un isolant acoustique
FR3090471A1 (fr) 2018-12-24 2020-06-26 Airbus Operations (S.A.S.) Procédé de fabrication d’une structure d’absorption acoustique comprenant un panneau alvéolaire intégrant des éléments acoustiques et structure d’absorption acoustique obtenue à partir dudit procédé

Also Published As

Publication number Publication date
US20220293077A1 (en) 2022-09-15
US12106744B2 (en) 2024-10-01
FR3120732A1 (fr) 2022-09-16

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