GB2252077B - Noise attenuation panel - Google Patents

Noise attenuation panel

Info

Publication number
GB2252077B
GB2252077B GB9201246A GB9201246A GB2252077B GB 2252077 B GB2252077 B GB 2252077B GB 9201246 A GB9201246 A GB 9201246A GB 9201246 A GB9201246 A GB 9201246A GB 2252077 B GB2252077 B GB 2252077B
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
GB9201246A
Other versions
GB9201246D0 (en
GB2252077A (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 GB9201246D0 publication Critical patent/GB9201246D0/en
Publication of GB2252077A publication Critical patent/GB2252077A/en
Application granted granted Critical
Publication of GB2252077B publication Critical patent/GB2252077B/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
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • 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
    • 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
    • G10K11/162—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
    • B32B2266/00—Composition of foam
    • B32B2266/06—Open cell foam
    • 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

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)
GB9201246A 1991-01-22 1992-01-21 Noise attenuation panel Expired - Fee Related GB2252077B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919101353A GB9101353D0 (en) 1991-01-22 1991-01-22 Noise attenuation panel

Publications (3)

Publication Number Publication Date
GB9201246D0 GB9201246D0 (en) 1992-03-11
GB2252077A GB2252077A (en) 1992-07-29
GB2252077B true GB2252077B (en) 1994-11-02

Family

ID=10688798

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919101353A Pending GB9101353D0 (en) 1991-01-22 1991-01-22 Noise attenuation panel
GB9201246A Expired - Fee Related GB2252077B (en) 1991-01-22 1992-01-21 Noise attenuation panel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919101353A Pending GB9101353D0 (en) 1991-01-22 1991-01-22 Noise attenuation panel

Country Status (6)

Country Link
EP (1) EP0568570A1 (en)
JP (1) JPH06504631A (en)
AU (1) AU1170892A (en)
CA (1) CA2098099A1 (en)
GB (2) GB9101353D0 (en)
WO (1) WO1992013339A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824973A (en) * 1992-09-29 1998-10-20 Johns Manville International, Inc. Method of making sound absorbing laminates and laminates having maximized sound absorbing characteristics
US5459291A (en) * 1992-09-29 1995-10-17 Schuller International, Inc. Sound absorption laminate
US5817704A (en) * 1996-03-08 1998-10-06 The Procter & Gamble Company Heterogeneous foam materials
DE19620375A1 (en) * 1996-05-21 1997-11-27 Polymer Chemie Gmbh Sound absorbing and damping component
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
US7318499B2 (en) 2004-02-20 2008-01-15 Honeywell International, Inc. Noise suppression structure and method of making the same
US10941708B2 (en) 2017-03-07 2021-03-09 Raytheon Technologies Corporation Acoustically damped gas turbine engine
US10612464B2 (en) 2017-03-07 2020-04-07 United Technologies Corporation Flutter inhibiting intake for gas turbine propulsion system
US10428685B2 (en) 2017-03-07 2019-10-01 United Technologies Corporation Flutter inhibiting intake for gas turbine propulsion system
US10415506B2 (en) 2017-03-07 2019-09-17 United Technologies Corporation Multi degree of freedom flutter damper
US10539156B2 (en) 2017-03-07 2020-01-21 United Technologies Corporation Variable displacement flutter damper for a turbofan engine
US10619566B2 (en) 2017-03-07 2020-04-14 United Technologies Corporation Flutter damper for a turbofan engine
US10422280B2 (en) * 2017-03-07 2019-09-24 United Technologies Corporation Fan flutter suppression system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750239A (en) * 1953-06-03 1956-06-13 Pritchett & Gold & E P S Co Improvements relating to the production of porous thermoplastic polymers
GB1242864A (en) * 1968-05-15 1971-08-18 Dunlop Holdings Ltd Acoustical elements
US4263356A (en) * 1978-04-10 1981-04-21 Toyota Jidosha Kogyo Kabushiki Kaisha Auto ceiling panel
US4515239A (en) * 1982-09-25 1985-05-07 Audi Nsu Auto Union A.G. Noise reduction lining
EP0146521A2 (en) * 1983-11-21 1985-06-26 Monsanto Company Laminate structure with improved acoustical absorption
GB2179594A (en) * 1985-08-27 1987-03-11 Greiner Schaumstoffwerk A sandwich-like soundproofing element and method of manufacture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977492A (en) * 1975-01-09 1976-08-31 Acon, Inc. Acoustical material for use in association with noise generating machinery
US4111081A (en) * 1976-01-02 1978-09-05 The Boeing Company Low non-linearity factor sound attenuating laminate
CA1211360A (en) * 1982-05-19 1986-09-16 William N. Lavery, (Deceased) Means for attenuating sound energy, and method of manufacture thereof
GB8817669D0 (en) * 1988-07-25 1988-09-01 Short Brothers Ltd Means for attenuating sound energy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750239A (en) * 1953-06-03 1956-06-13 Pritchett & Gold & E P S Co Improvements relating to the production of porous thermoplastic polymers
GB1242864A (en) * 1968-05-15 1971-08-18 Dunlop Holdings Ltd Acoustical elements
US4263356A (en) * 1978-04-10 1981-04-21 Toyota Jidosha Kogyo Kabushiki Kaisha Auto ceiling panel
US4515239A (en) * 1982-09-25 1985-05-07 Audi Nsu Auto Union A.G. Noise reduction lining
EP0146521A2 (en) * 1983-11-21 1985-06-26 Monsanto Company Laminate structure with improved acoustical absorption
GB2179594A (en) * 1985-08-27 1987-03-11 Greiner Schaumstoffwerk A sandwich-like soundproofing element and method of manufacture

Also Published As

Publication number Publication date
GB9201246D0 (en) 1992-03-11
WO1992013339A1 (en) 1992-08-06
JPH06504631A (en) 1994-05-26
EP0568570A1 (en) 1993-11-10
AU1170892A (en) 1992-08-27
CA2098099A1 (en) 1992-07-22
GB9101353D0 (en) 1991-03-06
GB2252077A (en) 1992-07-29

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Legal Events

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

Effective date: 20010121