FR3113169B1 - Procédé de fabrication d’un panneau acoustique à peau capsulaire et panneau acoustique intégrant une telle peau - Google Patents
Procédé de fabrication d’un panneau acoustique à peau capsulaire et panneau acoustique intégrant une telle peau Download PDFInfo
- Publication number
- FR3113169B1 FR3113169B1 FR2008179A FR2008179A FR3113169B1 FR 3113169 B1 FR3113169 B1 FR 3113169B1 FR 2008179 A FR2008179 A FR 2008179A FR 2008179 A FR2008179 A FR 2008179A FR 3113169 B1 FR3113169 B1 FR 3113169B1
- Authority
- FR
- France
- Prior art keywords
- skin
- acoustic panel
- capsular
- panel
- honeycomb
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000002775 capsule Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
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
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D29/00—Power-plant nacelles, fairings, or cowlings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
- B29D99/0021—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix
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- 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
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- 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
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3076—Aircrafts
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- 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
- F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
L’invention concerne un panneau acoustique comprenant une structure alvéolaire (2) tel un nid d’abeille, présentant des alvéoles (21) s’ouvrant au moins sur une première face frontale (22) de la structure. Le panneau comprend une peau capsulaire (3) qui est fixée à la première face frontale (22) de la structure alvéolaire en regard de plusieurs alvéoles (21), laquelle peau capsulaire (3) comprend une couche de matériau continue, d’un seul tenant, formant des capsules (31) qui s’étendent à l’intérieur de la structure alvéolaire, au moins un canal (32) étant prévu au sommet de chaque capsule pour le passage d’ondes acoustiques. Un tel panneau atténue efficacement les nuisances sonores des moteurs d’aéronef, en particulier les basses fréquences. Il est extrêmement simple à fabriquer de façon industrielle, la peau capsulaire pouvant être obtenue par moulage avec polymérisation in situ, le matériau polymérisable adhérant ainsi à la structure alvéolaire au cours de sa polymérisation. Figure pour l’abrégé : Fig. 3
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2008179A FR3113169B1 (fr) | 2020-07-31 | 2020-07-31 | Procédé de fabrication d’un panneau acoustique à peau capsulaire et panneau acoustique intégrant une telle peau |
US17/387,529 US11952136B2 (en) | 2020-07-31 | 2021-07-28 | Method for manufacturing an acoustic panel having a capsular skin, and acoustic panel incorporating such a skin |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2008179A FR3113169B1 (fr) | 2020-07-31 | 2020-07-31 | Procédé de fabrication d’un panneau acoustique à peau capsulaire et panneau acoustique intégrant une telle peau |
FR2008179 | 2020-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3113169A1 FR3113169A1 (fr) | 2022-02-04 |
FR3113169B1 true FR3113169B1 (fr) | 2022-12-09 |
Family
ID=73698970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2008179A Active FR3113169B1 (fr) | 2020-07-31 | 2020-07-31 | Procédé de fabrication d’un panneau acoustique à peau capsulaire et panneau acoustique intégrant une telle peau |
Country Status (2)
Country | Link |
---|---|
US (1) | US11952136B2 (fr) |
FR (1) | FR3113169B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3134340A1 (fr) * | 2022-04-11 | 2023-10-13 | Institut De Recherche Technologique Jules Verne | Élément de structure muni d’inserts rapportés pour une structure composite acoustique et procédé de fabrication associe |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831710A (en) * | 1973-01-24 | 1974-08-27 | Lockheed Aircraft Corp | Sound absorbing panel |
US3887031A (en) * | 1973-06-11 | 1975-06-03 | Lockheed Aircraft Corp | Dual-range sound absorber |
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 |
US6871725B2 (en) * | 2003-02-21 | 2005-03-29 | Jeffrey Don Johnson | Honeycomb core acoustic unit with metallurgically secured deformable septum, and method of manufacture |
US9643392B2 (en) * | 2013-07-29 | 2017-05-09 | The Boeing Company | Septumization of honeycomb sandwiches |
US9068345B2 (en) * | 2013-08-12 | 2015-06-30 | Hexcel Corporation | Multi-sectional acoustic septum |
US9931825B2 (en) * | 2014-07-09 | 2018-04-03 | The Boeing Company | Septumization of cellular cores |
FR3026122B1 (fr) | 2014-09-24 | 2019-08-09 | Safran Aircraft Engines | Panneau de traitement acoustique |
US9469985B1 (en) * | 2015-05-11 | 2016-10-18 | Hexcel Corporation | Acoustic structures with multiple degrees of freedom |
US9620102B1 (en) * | 2016-05-02 | 2017-04-11 | Hexcel Corporation | Stepped acoustic structures with multiple degrees of freedom |
US10577117B2 (en) * | 2017-08-04 | 2020-03-03 | Hexcel Corporation | Angled acoustic honeycomb |
US10851713B2 (en) | 2017-08-29 | 2020-12-01 | Mra Systems, Llc. | Acoustic liner having internal structure |
FR3083735B1 (fr) * | 2018-07-10 | 2020-09-11 | Safran Nacelles | Procede de fabrication d’un panneau composite |
US11261786B2 (en) * | 2018-08-06 | 2022-03-01 | Rohr, Inc. | Continuous slanted cell septum |
FR3088658B1 (fr) * | 2018-11-16 | 2021-10-29 | Airbus Operations Sas | Structure constituant un isolant acoustique |
FR3092844A1 (fr) * | 2019-02-14 | 2020-08-21 | Airbus Operations (S.A.S.) | Procédé de réalisation d’une structure d’absorption acoustique comprenant une peau formant une pluralité d’enceintes, structure d’absorption acoustique obtenue selon ledit procédé et aéronef comprenant ladite structure d’absorption acoustique |
FR3093374B1 (fr) * | 2019-02-28 | 2023-06-16 | Safran Nacelles | Procédé d’élaboration d’âmes alvéolaires à formes coniques internes ouvertes |
FR3095369B1 (fr) * | 2019-04-29 | 2023-04-07 | Airbus Operations Sas | Procédé de fabrication d’une structure d’absorption acoustique utilisant au moins une plaque de conformation, structure d’absorption acoustique obtenue à partir dudit procédé et aéronef comprenant ladite structure d’absorption acoustique |
US11674475B2 (en) * | 2019-12-20 | 2023-06-13 | The Boeing Company | Structural single degree of freedom acoustic liner |
-
2020
- 2020-07-31 FR FR2008179A patent/FR3113169B1/fr active Active
-
2021
- 2021-07-28 US US17/387,529 patent/US11952136B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3113169A1 (fr) | 2022-02-04 |
US20220097863A1 (en) | 2022-03-31 |
US11952136B2 (en) | 2024-04-09 |
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Legal Events
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PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20220204 |
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PLFP | Fee payment |
Year of fee payment: 3 |
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PLFP | Fee payment |
Year of fee payment: 4 |