DE2903024C2 - - Google Patents

Info

Publication number
DE2903024C2
DE2903024C2 DE2903024A DE2903024A DE2903024C2 DE 2903024 C2 DE2903024 C2 DE 2903024C2 DE 2903024 A DE2903024 A DE 2903024A DE 2903024 A DE2903024 A DE 2903024A DE 2903024 C2 DE2903024 C2 DE 2903024C2
Authority
DE
Germany
Prior art keywords
core
intermediate wall
cells
mandrel
sound
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.)
Expired
Application number
DE2903024A
Other languages
German (de)
English (en)
Other versions
DE2903024A1 (de
Inventor
James Louis Wichita Kan. Us Diepenbrock Jun.
Murray Dean Goddard Kan. Us Nelsen
Marlyn F. Winfield Kan. Us Harp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Wichita Co
Original Assignee
Boeing Wichita Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boeing Wichita Co filed Critical Boeing Wichita Co
Publication of DE2903024A1 publication Critical patent/DE2903024A1/de
Application granted granted Critical
Publication of DE2903024C2 publication Critical patent/DE2903024C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
    • 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
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • 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
    • 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
    • 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
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/024—Honeycomb
    • 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
    • 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
    • B32B2307/56—Damping, energy absorption
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • 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
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/02—Ceramics
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/22—Natural rubber
    • 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
    • B32B2319/00—Synthetic rubber
    • 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
    • B32B2398/00—Unspecified macromolecular compounds
    • 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
    • B32B2607/00—Walls, panels
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1234—Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Body Structure For Vehicles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
DE19792903024 1978-05-01 1979-01-26 Schallschluckendes wandteil und herstellungsverfahren fuer dasselbe Granted DE2903024A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/901,337 US4265955A (en) 1978-05-01 1978-05-01 Honeycomb core with internal septum and method of making same

Publications (2)

Publication Number Publication Date
DE2903024A1 DE2903024A1 (de) 1979-11-15
DE2903024C2 true DE2903024C2 (enExample) 1989-11-02

Family

ID=25413968

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792903024 Granted DE2903024A1 (de) 1978-05-01 1979-01-26 Schallschluckendes wandteil und herstellungsverfahren fuer dasselbe

Country Status (6)

Country Link
US (1) US4265955A (enExample)
JP (1) JPS54144488A (enExample)
DE (1) DE2903024A1 (enExample)
FR (1) FR2425118A1 (enExample)
GB (2) GB2019983B (enExample)
IT (1) IT1116451B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910595A1 (de) * 1999-03-10 2000-09-21 Volkswagen Ag Luftschallabsorbierendes Formteil

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2038410B (en) * 1978-12-27 1982-11-17 Rolls Royce Acoustic lining utilising resonance
FR2498793A1 (fr) * 1981-01-29 1982-07-30 Snecma Garniture insonorisante pour conduit de gaz notamment pour veine de soufflante de turboreacteur et outillage pour sa fabrication
US4594120A (en) * 1981-07-27 1986-06-10 Ltv Aerospace And Defense Company Method for installing a septum in honeycomb core
US4475624A (en) * 1981-07-27 1984-10-09 Ltv Aerospace And Defense Company Honeycomb structure
US4421201A (en) * 1981-09-29 1983-12-20 The Boeing Company High efficiency broadband acoustic resonator and absorption panel
US5076875A (en) * 1983-01-11 1991-12-31 Facet Enterprises, Incorporated Composite intermediate bonding structures
US4641726A (en) * 1983-04-20 1987-02-10 Peabody Noise Control, Inc. Composite structure and method of manufacturing it
US4522284A (en) * 1983-04-20 1985-06-11 Peabody Noise Control, Inc. Composite panel structure
US4496024A (en) * 1983-08-06 1985-01-29 Midwest-Acoust-A-Fiber, Inc. Sound absorption panel and method of making
US4849276A (en) * 1984-02-17 1989-07-18 The Boeing Company Thermal insulation structure
US4910065A (en) * 1987-10-15 1990-03-20 The Boeing Company Reinforced honeycomb core sandwich panels and method for making same
US4816097A (en) * 1988-04-05 1989-03-28 The Boeing Company Method of manufacturing a non-metallic core having a perforated septum embedded therein
FR2639742B2 (fr) * 1988-05-30 1992-03-13 Dassault Electronique Systeme de transaction du type porte-monnaie electronique mixte
US5106668A (en) * 1989-06-07 1992-04-21 Hexcel Corporation Multi-layer honeycomb structure
US5180619A (en) * 1989-12-04 1993-01-19 Supracor Systems, Inc. Perforated honeycomb
GB9101395D0 (en) * 1991-01-22 1991-03-06 Short Brothers Plc Structural cellular component
GB9101354D0 (en) * 1991-01-22 1991-03-06 Short Brothers Plc Noise attentuation panel
JPH06173772A (ja) 1992-08-10 1994-06-21 Boeing Co:The 逆推進装置内壁およびそのサンドイッチ構造
GB2295794B (en) * 1994-06-30 1998-07-08 Short Brothers Plc Structural cellular component
GB9413158D0 (en) * 1994-06-30 1994-08-24 Short Brothers Plc Structural cellular component
US5618633A (en) * 1994-07-12 1997-04-08 Precision Castparts Corporation Honeycomb casting
CA2164663C (en) * 1994-12-20 1999-08-10 David B. Martin Tackable acoustical-barrier panel
FR2737689B1 (fr) * 1995-08-09 1997-10-31 Michel Ets Panneau phoniquement isolant, notamment tapis de sol pour habitacle de vehicule
US5776579A (en) * 1996-03-28 1998-07-07 The Boeing Company Structural bonding with encapsulated foaming adhesive
US5782082A (en) * 1996-06-13 1998-07-21 The Boeing Company Aircraft engine acoustic liner
DE19804718C2 (de) * 1998-02-06 2001-09-13 Eurocopter Deutschland Schall absorbierende Sandwichwand
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
US6203656B1 (en) 1998-08-03 2001-03-20 General Electric Company Acoustic liner manufacture
US5997985A (en) * 1998-09-10 1999-12-07 Northrop Grumman Corporation Method of forming acoustic attenuation chambers using laser processing of multi-layered polymer films
US6509081B1 (en) 2000-09-28 2003-01-21 The Boeing Company No-septum acoustic sandwich panel, and apparatus and method for suppressing noise in a nozzle
JP4585723B2 (ja) * 2001-09-18 2010-11-24 日機装株式会社 孔明きハニカムパネルの製造方法
RU2206458C1 (ru) * 2002-03-29 2003-06-20 ГОУ ВПО Воронежский государственный архитектурно-строительный университет Звукопоглощающая сотовая панель
US6668561B1 (en) 2002-06-27 2003-12-30 Northrop Grumman Corporation Pressure regulated structure
US6871725B2 (en) * 2003-02-21 2005-03-29 Jeffrey Don Johnson Honeycomb core acoustic unit with metallurgically secured deformable septum, and method of manufacture
CA2527781A1 (en) * 2003-06-03 2004-12-09 Decoma International Inc. Bumper energy absorber and method of fabricating and assembling the same
US7434659B2 (en) * 2005-04-04 2008-10-14 Hexcel Corporation Acoustic septum cap honeycomb
US8413761B2 (en) * 2005-04-04 2013-04-09 Hexcel Corporation Acoustic honeycomb with perforated septum caps
WO2008067366A2 (en) * 2006-11-28 2008-06-05 Usa As Represented By The Administrator Of The National Aeronautics And Space Administration Composite panel with reinforced recesses
DE102007060668A1 (de) * 2007-12-17 2009-06-18 Airbus Deutschland Gmbh Sandwichpaneel zur Schallabsorption
CN101468532A (zh) * 2007-12-29 2009-07-01 冷鹭浩 一种塑料发泡蜂窝复合板
FR2940176B1 (fr) * 2008-12-22 2011-02-11 Aircelle Sa Procede de fabrication d'un panneau d'attenuation acoustique, notamment pour l'aeronautique
US7998389B2 (en) * 2009-07-17 2011-08-16 Spirit Aerosystems, Inc. Method for septumizing injection molded thermoplastic core
US9079674B1 (en) * 2009-09-18 2015-07-14 Blue Origin, Llc Composite structures for aerospace vehicles, and associated systems and methods
JP5531343B2 (ja) * 2010-01-21 2014-06-25 神鋼建材工業株式会社 間仕切りパネル
US8607925B2 (en) * 2010-07-20 2013-12-17 Hendrik David Gideonse Wedge-shaped acoustic diffuser and method of installation
US8596413B2 (en) * 2011-07-25 2013-12-03 Dresser-Rand Company Acoustic array of polymer material
US8607924B2 (en) * 2011-09-08 2013-12-17 Hexcel Corporation Anchoring of septums in acoustic honeycomb
US10294815B2 (en) * 2012-03-01 2019-05-21 The Boeing Company SPF/DB structure for attenuation of noise from air flow
US8651233B2 (en) 2012-05-08 2014-02-18 Hexcel Corporation Acoustic structure with increased bandwidth suppression
US8696843B1 (en) 2012-09-06 2014-04-15 The Boeing Company Repair of acoustically treated structures
US8733500B1 (en) 2012-11-12 2014-05-27 Hexcel Corporation Acoustic structure with internal thermal regulators
US9643392B2 (en) 2013-07-29 2017-05-09 The Boeing Company Septumization of honeycomb sandwiches
US8820477B1 (en) * 2013-07-29 2014-09-02 The Boeing Company Acoustic panel
US9693166B2 (en) 2014-06-24 2017-06-27 The Boeing Company Automated production of acoustic structures
US9931825B2 (en) 2014-07-09 2018-04-03 The Boeing Company Septumization of cellular cores
RU2572253C1 (ru) * 2014-10-07 2016-01-10 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Звукопоглощающий материал и конструктивные элементы двигателя и мотогондолы двигателя, выполненные из него
US10336433B2 (en) 2015-03-09 2019-07-02 The Boeing Company Fused porogen process for acoustic septa fabrication
MX370318B (es) * 2015-09-28 2019-11-25 Eduardo Gadsden Hevia Carlos Sistema constructivo celulaminar.
WO2016208507A1 (ja) 2015-06-22 2016-12-29 富士フイルム株式会社 防音構造、ルーバーおよびパーティション
WO2017033804A1 (ja) * 2015-08-21 2017-03-02 富士フイルム株式会社 防音構造
JP6570641B2 (ja) * 2015-08-21 2019-09-04 富士フイルム株式会社 防音構造
US10232549B2 (en) 2015-09-10 2019-03-19 The Boeing Company Geometric sound absorption via additive manufacturing
RU2612674C1 (ru) * 2015-10-15 2017-03-13 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") Полимерный звукопоглощающий материал и способ его изготовления
US9752595B2 (en) * 2015-11-03 2017-09-05 Rohr, Inc. Nacelle core with insert
US10174675B2 (en) 2015-12-30 2019-01-08 General Electric Company Acoustic liner for gas turbine engine components
US12435768B2 (en) * 2016-03-07 2025-10-07 Purple Innovation, Llc Elastomeric cushion members including perforated skins and related methods
US9620102B1 (en) * 2016-05-02 2017-04-11 Hexcel Corporation Stepped acoustic structures with multiple degrees of freedom
CN109643535B (zh) 2016-08-23 2023-02-28 富士胶片株式会社 防音结构体及开口结构体
US10332501B2 (en) 2017-02-01 2019-06-25 General Electric Company Continuous degree of freedom acoustic cores
CN106982546B (zh) * 2017-04-21 2019-05-14 中国航空工业集团公司基础技术研究院 一种电磁屏蔽蜂窝芯材、其制备方法及植入工装
WO2019050680A1 (en) 2017-09-07 2019-03-14 The Nordam Group, Inc. FABRICATION OF ACOUSTIC REDUCTION PANEL
US11125157B2 (en) 2017-09-22 2021-09-21 The Boeing Company Advanced inlet design
RU2699298C2 (ru) * 2017-10-05 2019-09-04 Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") Способ изготовления заготовки акустической структуры
CN107639922B (zh) * 2017-10-25 2019-11-15 中国航空工业集团公司基础技术研究院 一种制备内隔板蜂窝芯材的装置及方法
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
WO2019221828A1 (en) * 2018-05-17 2019-11-21 Safran Cabin Inc. Honeycomb core with improved acoustic properties and method for making same
US11261786B2 (en) * 2018-08-06 2022-03-01 Rohr, Inc. Continuous slanted cell septum
US11047304B2 (en) 2018-08-08 2021-06-29 General Electric Company Acoustic cores with sound-attenuating protuberances
US10823059B2 (en) 2018-10-03 2020-11-03 General Electric Company Acoustic core assemblies with mechanically joined acoustic core segments, and methods of mechanically joining acoustic core segments
US12330214B1 (en) 2019-02-11 2025-06-17 Blue Origin Manufacturing, LLC Printed porous media, such as for use in aerospace parts, and associated systems and methods
WO2020165619A1 (ja) * 2019-02-13 2020-08-20 日産自動車株式会社 防音構造体
US12039963B2 (en) * 2019-02-13 2024-07-16 Nissan Motor Co., Ltd. Soundproofing structure
FR3093374B1 (fr) * 2019-02-28 2023-06-16 Safran Nacelles Procédé d’élaboration d’âmes alvéolaires à formes coniques internes ouvertes
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
FR3101723B1 (fr) 2019-10-08 2022-07-22 Safran Nacelles Panneau d’atténuation acoustique pour onde basses fréquences
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
FR3115147B1 (fr) 2020-10-09 2023-06-09 Airbus Operations Sas Procédé de fabrication d’un ensemble insonorisant comportant deux panneaux superposés
BR102022003769A2 (pt) 2021-05-04 2022-11-16 The Boeing Company Estrutura de entrada de nacele de um conjunto de motor
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
FR3124016B1 (fr) * 2021-06-15 2024-01-05 Safran Nacelles Panneau de traitement acoustique renforcé pour un ensemble propulsif d’aéronef
US11674396B2 (en) 2021-07-30 2023-06-13 General Electric Company Cooling air delivery assembly
US11845699B2 (en) 2021-09-07 2023-12-19 Blue Origin, Llc Methods for manufacturing coated composite materials
US12078125B2 (en) * 2021-09-13 2024-09-03 Rohr, Inc. Low-frequency acoustic center body
US12142253B2 (en) 2021-10-05 2024-11-12 General Electric Company Solid adhesive film for acoustic liner and method
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine
US12312969B2 (en) 2023-01-17 2025-05-27 General Electric Company Airfoils for turbofan engines

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US525202A (en) * 1894-08-28 Jean benoit granjon and camille bellon
US2870857A (en) * 1956-03-06 1959-01-27 Celotex Corp Translucent acoustical correction ceiling construction
US3064345A (en) * 1959-08-27 1962-11-20 Northrop Corp Process for chucking porous materials
US3053720A (en) * 1960-03-14 1962-09-11 Purex Corp Ltd Process for etching metal honeycomb
US3021565A (en) * 1960-05-09 1962-02-20 Northrop Corp Stabilizer for honeycom core
US3249659A (en) * 1961-07-19 1966-05-03 Allied Chem Method of making laminated panel structures
US3802145A (en) * 1970-06-03 1974-04-09 Rohr Corp Mechanism and method for providing intra-cell thermal resistance in honeycomb panel cores
US3734234A (en) * 1971-11-08 1973-05-22 Lockheed Aircraft Corp Sound absorption structure
DE2314396B1 (de) * 1973-03-22 1974-06-20 Vasiljevic Costa Silard Dipl I Vorrichtung zur Schalldaempfung unter Verwendung von Resonatoren
US3948346A (en) * 1974-04-02 1976-04-06 Mcdonnell Douglas Corporation Multi-layered acoustic liner
GB1502314A (en) * 1974-04-08 1978-03-01 Lockheed Aircraft Corp Cellular sound absorptive structure
GB1490923A (en) * 1975-06-23 1977-11-02 Short Brothers & Harland Ltd Sound-absorbing structures
JPS5248560A (en) * 1975-10-16 1977-04-18 Kondo Hiroaki Method of making honeycomb board
US4084366A (en) * 1975-11-14 1978-04-18 Haworth Mfg., Inc. Sound absorbing panel
US4001473A (en) * 1976-02-19 1977-01-04 Rohr Industries, Inc. Sound attenuating structural honeycomb sandwich material
JPS52134227A (en) * 1976-05-06 1977-11-10 Nippon Light Metal Co Core material of panel for construction and its preparation method
JPS5910903B2 (ja) * 1976-07-13 1984-03-12 日本ポリウレタン工業株式会社 複合パネルの連続製造法
US4118263A (en) * 1976-12-30 1978-10-03 Cook William H Jun Method of manufacturing structural honeycomb with integral heat radiation shields, and the resulting product thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910595A1 (de) * 1999-03-10 2000-09-21 Volkswagen Ag Luftschallabsorbierendes Formteil

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FR2425118A1 (fr) 1979-11-30
JPS54144488A (en) 1979-11-10
DE2903024A1 (de) 1979-11-15
US4265955A (en) 1981-05-05
GB2019767B (en) 1982-07-07
GB2019767A (en) 1979-11-07
FR2425118B1 (enExample) 1985-02-01
GB2019983B (en) 1982-09-02
GB2019983A (en) 1979-11-07
IT7948750A0 (it) 1979-04-17
IT1116451B (it) 1986-02-10

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