GB2252075B - Noise Attenuation Panel - Google Patents

Noise Attenuation Panel

Info

Publication number
GB2252075B
GB2252075B GB9201243A GB9201243A GB2252075B GB 2252075 B GB2252075 B GB 2252075B GB 9201243 A GB9201243 A GB 9201243A GB 9201243 A GB9201243 A GB 9201243A GB 2252075 B GB2252075 B GB 2252075B
Authority
GB
United Kingdom
Prior art keywords
noise attenuation
attenuation panel
panel
noise
attenuation
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 - Fee Related
Application number
GB9201243A
Other versions
GB2252075A (en
GB9201243D0 (en
Inventor
Robert Samuel Wilson
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.)
Short Brothers PLC
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 GB9201243D0 publication Critical patent/GB9201243D0/en
Publication of GB2252075A publication Critical patent/GB2252075A/en
Application granted granted Critical
Publication of GB2252075B publication Critical patent/GB2252075B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 form; Layered products 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 form; Layered products 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 form; Layered products 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B5/024—Woven fabric
    • 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
    • B32B5/16—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 formed of particles, e.g. chips, powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • 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
    • B32B2307/10—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
    • B32B2607/00—Walls, panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B64D2033/0206—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
GB9201243A 1991-01-22 1992-01-21 Noise Attenuation Panel Expired - Fee Related GB2252075B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919101395A GB9101395D0 (en) 1991-01-22 1991-01-22 Structural cellular component

Publications (3)

Publication Number Publication Date
GB9201243D0 GB9201243D0 (en) 1992-03-11
GB2252075A GB2252075A (en) 1992-07-29
GB2252075B true GB2252075B (en) 1994-10-19

Family

ID=10688828

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919101395A Pending GB9101395D0 (en) 1991-01-22 1991-01-22 Structural cellular component
GB9201243A Expired - Fee Related GB2252075B (en) 1991-01-22 1992-01-21 Noise Attenuation Panel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919101395A Pending GB9101395D0 (en) 1991-01-22 1991-01-22 Structural cellular component

Country Status (6)

Country Link
EP (1) EP0568573A1 (en)
JP (1) JPH06504629A (en)
AU (1) AU1170792A (en)
CA (1) CA2092410A1 (en)
GB (2) GB9101395D0 (en)
WO (1) WO1992012854A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732336B1 (en) 1995-03-29 1997-06-20 Aerospatiale PROCESS FOR DEVELOPING A LIGHT SIC STRUCTURE, OF THE SANDWICH TYPE WITH A HONEYCOMB CORE, AND STRUCTURE THUS OBTAINED
FR2735166B1 (en) * 1995-06-08 1997-08-29 Aerospatiale METHOD FOR MANUFACTURING A PANEL OR THE LIKE WITH STRUCTURAL AND ACOUSTIC PROPERTIES AND PANEL SO OBTAINED
FR2735093B1 (en) * 1995-06-09 1997-08-29 Aerospatiale COMPOSITE MATERIAL SANDWICH PANEL AND MANUFACTURING METHOD
GB0016149D0 (en) * 2000-06-30 2000-08-23 Short Brothers Plc A noise attenuation panel
US7328771B2 (en) 2004-07-27 2008-02-12 United Technologies Corporation Zero acoustic splice fan case liner
ES2542905T3 (en) * 2009-09-11 2015-08-12 Stora Enso Re-Board Ab Board and method for manufacturing a board
FR2951854B1 (en) * 2009-10-22 2014-09-12 Onera (Off Nat Aerospatiale) ACOUSTIC ABSORPTION DEVICE
GB2485165A (en) * 2010-11-03 2012-05-09 Timothy John Sweatman A laminated panel for acoustic insulation
US9096316B2 (en) * 2012-02-01 2015-08-04 Textron Innovations Inc. Optimized core for a structural assembly
US10294815B2 (en) 2012-03-01 2019-05-21 The Boeing Company SPF/DB structure for attenuation of noise from air flow
GB201209658D0 (en) 2012-05-31 2012-07-11 Rolls Royce Plc Acoustic panel
KR102108885B1 (en) * 2013-06-13 2020-05-12 더 보잉 컴파니 Superplastic forming/diffusion bonding structure for attenuation of noise from air flow
US10184398B2 (en) 2013-10-17 2019-01-22 Rohr, Inc. Acoustic structural panel with slanted core
FR3024708B1 (en) * 2014-08-06 2018-03-02 Safran Nacelles ALVEOLAR PANEL FOR AN AIRCRAFT NACELLE AND METHOD FOR MANUFACTURING SUCH A PANEL
FR3026045B1 (en) * 2014-09-24 2016-12-09 Faurecia Automotive Ind METHOD FOR MANUFACTURING A COMPOSITE PIECE BASED ON AQUEOUS RESIN AND COMPOSITE PART PRODUCED BY SUCH A METHOD
FR3031142B1 (en) 2014-12-24 2017-03-24 Aircelle Sa ACOUSTICAL ATTENUATION PANEL FOR TURBOREACTOR NACELLE
US9650963B2 (en) * 2015-01-29 2017-05-16 Rohr, Inc. Acoustic structural panel with herringbone core
US10800117B2 (en) 2015-03-12 2020-10-13 Rohr, Inc. Method of forming an acoustic bond panel with insertable acoustic assemblies
US9656452B2 (en) 2015-03-12 2017-05-23 Rohr, Inc. Method of forming an acoustic bond panel with insertable acoustic assemblies
US9708930B2 (en) 2015-12-09 2017-07-18 Rohr, Inc. Multi-degree of freedom acoustic panel
US10487943B2 (en) 2016-07-12 2019-11-26 United Technologies Corporation Multi-ply seal ring
US10577117B2 (en) 2017-08-04 2020-03-03 Hexcel Corporation Angled acoustic honeycomb
GB201903716D0 (en) * 2019-03-19 2019-05-01 Rolls Royce Plc Acoustic liner panel and containment for a gas turbine engine
CN114074753A (en) * 2020-08-19 2022-02-22 中国航发商用航空发动机有限责任公司 Honeycomb body, method for producing the same, honeycomb device, acoustic liner, and aircraft engine
FR3126334B1 (en) 2021-08-30 2023-07-21 Safran Nacelles Process for manufacturing an acoustic panel with oblique cavities
FR3126340B1 (en) 2021-08-30 2023-11-03 Safran Nacelles Acoustic panel with oblique cavities

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1347270A (en) * 1970-12-18 1974-02-27 American Cyanamid Co Sound absorbing laminate
US3821999A (en) * 1972-09-05 1974-07-02 Mc Donnell Douglas Corp Acoustic liner
GB1451649A (en) * 1973-01-24 1976-10-06
GB1502314A (en) * 1974-04-08 1978-03-01 Lockheed Aircraft Corp Cellular sound absorptive structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
US4265955A (en) * 1978-05-01 1981-05-05 The Boeing Company Honeycomb core with internal septum and method of making same
US4318453A (en) * 1979-09-17 1982-03-09 Rohr Industries, Inc. Double layer attenuation panel
US4433021A (en) * 1982-09-22 1984-02-21 Rohr Industries, Inc. Sound attenuation sandwich panel including barrier material for corrosion control
GB8817669D0 (en) * 1988-07-25 1988-09-01 Short Brothers Ltd Means for attenuating sound energy
FR2660787B1 (en) * 1990-04-06 1996-06-21 Technologies Speciales Ingenie ANECHOUID SCREEN.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1347270A (en) * 1970-12-18 1974-02-27 American Cyanamid Co Sound absorbing laminate
US3821999A (en) * 1972-09-05 1974-07-02 Mc Donnell Douglas Corp Acoustic liner
GB1451649A (en) * 1973-01-24 1976-10-06
GB1502314A (en) * 1974-04-08 1978-03-01 Lockheed Aircraft Corp Cellular sound absorptive structure

Also Published As

Publication number Publication date
GB2252075A (en) 1992-07-29
GB9101395D0 (en) 1991-03-06
JPH06504629A (en) 1994-05-26
WO1992012854A1 (en) 1992-08-06
GB9201243D0 (en) 1992-03-11
AU1170792A (en) 1992-08-27
EP0568573A1 (en) 1993-11-10
CA2092410A1 (en) 1992-07-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010121