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BR9205581A - Painel de atenuação de ruído e aeromotor. - Google Patents

Painel de atenuação de ruído e aeromotor.

Info

Publication number
BR9205581A
BR9205581A BR9205581A BR9205581A BR9205581A BR 9205581 A BR9205581 A BR 9205581A BR 9205581 A BR9205581 A BR 9205581A BR 9205581 A BR9205581 A BR 9205581A BR 9205581 A BR9205581 A BR 9205581A
Authority
BR
Brazil
Prior art keywords
aeromotor
noise attenuation
attenuation panel
panel
noise
Prior art date
Application number
BR9205581A
Other languages
English (en)
Inventor
Robert Samuel Wilson
Original Assignee
Short Brothers Plc
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 Short Brothers Plc filed Critical Short Brothers Plc
Publication of BR9205581A publication Critical patent/BR9205581A/pt

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered 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
    • B32B3/10Layered 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
    • B32B3/12Layered 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162Selection of materials
    • G10K11/165Particles in a matrix
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered 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
    • B32B15/043Layered 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 metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered 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
    • B32B15/08Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/28Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/42Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered 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
    • B32B3/26Layered 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
    • B32B3/266Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/02Cellular or porous
    • B32B2305/026Porous
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56Damping, energy absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00Metals, their alloys or their compounds
    • B32B2311/24Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2371/00Polyethers, e.g. PEEK, i.e. polyether-etherketone; PEK, i.e. polyetherketone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Casings For Electric Apparatus (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Connection Or Junction Boxes (AREA)
BR9205581A 1991-05-30 1992-05-27 Painel de atenuação de ruído e aeromotor. BR9205581A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919111621A GB9111621D0 (en) 1991-05-30 1991-05-30 Noise attenuation panel
PCT/GB1992/000957 WO1992022053A1 (en) 1991-05-30 1992-05-27 Noise attenuation panel

Publications (1)

Publication Number Publication Date
BR9205581A true BR9205581A (pt) 1994-09-27

Family

ID=10695801

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9205581A BR9205581A (pt) 1991-05-30 1992-05-27 Painel de atenuação de ruído e aeromotor.

Country Status (8)

Country Link
EP (1) EP0586452A1 (pt)
JP (1) JPH06508935A (pt)
AU (1) AU1762592A (pt)
BR (1) BR9205581A (pt)
CA (1) CA2095919A1 (pt)
GB (2) GB9111621D0 (pt)
IL (1) IL102049A0 (pt)
WO (1) WO1992022053A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2739888B2 (ja) * 1994-10-24 1998-04-15 正幸 今井 酸素濃縮器
FR2775216B1 (fr) * 1998-02-26 2000-07-13 Snecma Panneau insonorisant et procede de realisation
GB0119608D0 (en) * 2001-08-11 2001-10-03 Rolls Royce Plc A guide vane assembly
JP4754836B2 (ja) * 2005-01-27 2011-08-24 株式会社神戸製鋼所 二重壁構造体
US7434659B2 (en) * 2005-04-04 2008-10-14 Hexcel Corporation Acoustic septum cap honeycomb
US8815038B2 (en) 2008-10-01 2014-08-26 The Boeing Company Joining curved composite sandwich panels
US8834667B2 (en) 2010-10-19 2014-09-16 The Boeing Company Method for joining sandwich truss core panels and composite structures produced therefrom
US8607924B2 (en) * 2011-09-08 2013-12-17 Hexcel Corporation Anchoring of septums in acoustic honeycomb
US8651233B2 (en) 2012-05-08 2014-02-18 Hexcel Corporation Acoustic structure with increased bandwidth suppression
GB2512869B (en) * 2013-04-09 2021-07-21 Upm Kymmene Corp A composite having acoustic properties, manufacturing the composite, a component comprising a composite, manufacturing the component and uses thereof
GB2539228B (en) * 2015-06-10 2017-07-26 Fergusson's Advanced Composite Tech Ltd A method of making a composite structure
WO2021116888A1 (en) * 2019-12-12 2021-06-17 3M Innovative Properties Company Dual layer sound-absorbing panels comprising a core consisting of connected cells, wherein some of the cell walls have openings
WO2021116889A1 (en) * 2019-12-12 2021-06-17 3M Innovative Properties Company Methods of making dual layer sound-absorbing panels comprising a core consisting of connected cells, wherein some of the cell walls have openings
EP4144649A1 (en) * 2021-09-07 2023-03-08 Lilium eAircraft GmbH Shrouded fan engine comprising an acoustic liner
EP4411726A1 (fr) * 2023-01-31 2024-08-07 Airbus SAS Structure alvéolaire d'un panneau d atténuation acoustique comprenant au moins une cloison configurée pour vibrer à une fréquence souhaitée, procédé de fabrication de ladite structure alvéolaire
US12428165B2 (en) * 2023-06-05 2025-09-30 Rohr, Inc. Nacelle inlet structure with foam core

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981360A (en) * 1954-02-18 1961-04-25 Bayer Ag Sound-absorbing systems
US3821999A (en) * 1972-09-05 1974-07-02 Mc Donnell Douglas Corp Acoustic liner
JPS5073734A (pt) * 1973-11-05 1975-06-18
SE420629C (sv) * 1979-11-19 1985-09-30 Larsson Jan E Ljuddempande matta och sett for dess framstellning
JPS57178855A (en) * 1981-04-30 1982-11-04 Nissan Motor Acoustic board
GB2130963B (en) * 1982-11-30 1986-03-19 Rolls Royce Manufacturing damped resonator acoustical panel
FR2562699B1 (fr) * 1984-04-09 1986-12-05 Alsthom Atlantique Revetement de paroi absorbant les ondes acoustiques
GB8817669D0 (en) * 1988-07-25 1988-09-01 Short Brothers Ltd Means for attenuating sound energy
JP2646140B2 (ja) * 1989-11-21 1997-08-25 株式会社ペトカ 炭素繊維複合体およびその製造方法

Also Published As

Publication number Publication date
GB9111621D0 (en) 1991-07-24
GB9211223D0 (en) 1992-07-08
GB2256395A (en) 1992-12-09
WO1992022053A1 (en) 1992-12-10
IL102049A0 (en) 1992-12-30
CA2095919A1 (en) 1992-12-01
GB2256395B (en) 1995-07-05
JPH06508935A (ja) 1994-10-06
AU1762592A (en) 1993-01-08
EP0586452A1 (en) 1994-03-16

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Legal Events

Date Code Title Description
FA1 Application withdrawn (art. 18(2))