BR8807731A - Sistema de atenuacao de som para motores de aeronaves a jato - Google Patents

Sistema de atenuacao de som para motores de aeronaves a jato

Info

Publication number
BR8807731A
BR8807731A BR888807731A BR8807731A BR8807731A BR 8807731 A BR8807731 A BR 8807731A BR 888807731 A BR888807731 A BR 888807731A BR 8807731 A BR8807731 A BR 8807731A BR 8807731 A BR8807731 A BR 8807731A
Authority
BR
Brazil
Prior art keywords
sound attenuation
aircraft engines
attenuation system
jet aircraft
jet
Prior art date
Application number
BR888807731A
Other languages
English (en)
Inventor
Stephen J Snyder
Original Assignee
Uas Support Inc
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 Uas Support Inc filed Critical Uas Support Inc
Publication of BR8807731A publication Critical patent/BR8807731A/pt

Links

Classifications

    • 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
    • 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
    • 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
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone 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
    • 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
    • B32B7/02—Physical, chemical or physicochemical 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/105—Ceramic fibres
    • 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
    • B32B2305/026—Porous
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/18—Aircraft
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • 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
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
    • Y10T428/31707—Next to natural rubber
    • Y10T428/3171—With natural rubber next to second layer of natural rubber

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
BR888807731A 1987-10-06 1988-10-05 Sistema de atenuacao de som para motores de aeronaves a jato BR8807731A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/106,618 US4848514A (en) 1987-10-06 1987-10-06 Sound attenuation system for jet aircraft engines
PCT/US1988/003438 WO1989003763A1 (en) 1987-10-06 1988-10-05 Sound attenuation system for jet aircraft engines

Publications (1)

Publication Number Publication Date
BR8807731A true BR8807731A (pt) 1990-08-07

Family

ID=22312384

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888807731A BR8807731A (pt) 1987-10-06 1988-10-05 Sistema de atenuacao de som para motores de aeronaves a jato

Country Status (5)

Country Link
US (1) US4848514A (pt)
EP (1) EP0391935A4 (pt)
JP (1) JPH03501402A (pt)
BR (1) BR8807731A (pt)
WO (1) WO1989003763A1 (pt)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926963A (en) * 1987-10-06 1990-05-22 Uas Support, Inc. Sound attenuating laminate for jet aircraft engines
WO1990012168A1 (en) * 1989-04-05 1990-10-18 Snyder Stephen J Sound attenuating laminate and installation for jet aircraft engines
US5060856A (en) * 1989-06-07 1991-10-29 Hermann Ortwein Sound-damping mat, especially for a ballast bed
GB2249753B (en) * 1990-11-13 1994-01-12 T & N Technology Ltd Flexible sheet material
US5250764A (en) * 1992-10-16 1993-10-05 The United States Of America As Represented By The Administrator Of The National Aeroneutics And Space Administration Consecutive plate acoustic suppressor apparatus and methods
US6224020B1 (en) * 1998-12-24 2001-05-01 Alliant Techsystems, Inc. Payload fairing with improved acoustic suppression
RU2140498C1 (ru) * 1999-04-29 1999-10-27 Лившиц Анатолий Яковлевич Устройство для снижения энергии акустических колебаний, исходящих от твердой поверхности
US6550574B2 (en) 2000-12-21 2003-04-22 Dresser-Rand Company Acoustic liner and a fluid pressurizing device and method utilizing same
US6755005B2 (en) * 2001-08-10 2004-06-29 General Electric Company Method and apparatus for stiffening and apparatus
US6776258B1 (en) 2001-12-28 2004-08-17 Lockheed Martin Corporation Acoustic blanket system
US6918740B2 (en) * 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
US7337875B2 (en) * 2004-06-28 2008-03-04 United Technologies Corporation High admittance acoustic liner
DE502005006196D1 (de) * 2004-11-29 2009-01-22 Agb Bautechnik Ag Bodenplatte für ein Hohlbodensystem, Verfahren zur Herstellung einer solchen Bodenplatte, sowie Hohlbodensystem mit einer solchen Bodenplatte
US7246772B2 (en) * 2004-12-20 2007-07-24 Sikorsky Aircraft Corporation Acoustic absorption system for an aircraft interior trim panel system
US7578468B2 (en) * 2004-12-20 2009-08-25 Sikorsky Aircraft Corporation Acoustic absorption system for an aircraft airframe
US7410126B2 (en) * 2004-12-20 2008-08-12 Sikorsky Aircraft Corporation Tunable acoustic absorption system for an aircraft cabin
US7429015B2 (en) * 2004-12-20 2008-09-30 Sikorsky Aircraft Corporation Acoustic absorption blanket mounting system for an aircraft cabin
US20110100747A1 (en) * 2006-05-24 2011-05-05 Airbus Operations Gmbh Sandwich element for the sound-absorbing inner cladding of means of transport, especially for the sound-absorbing inner cladding of aircraft
FR2908737B1 (fr) * 2006-11-16 2009-12-04 Airbus France Revetement acoustique pour aeronef incorporant un systeme de traitement du givre par effet joule.
EP1932659A1 (en) * 2006-12-14 2008-06-18 Honeywell International Inc. Noise suppression panel with fluid rejection capability and methods of making the same
KR20080092838A (ko) * 2007-04-12 2008-10-16 가부시끼 가이샤 구보다 캐빈을 구비한 주행 차량
CN102301122B (zh) * 2008-07-30 2014-05-14 埃尔塞乐公司 用于飞行器发动机机舱的声衰减板
US20100213002A1 (en) * 2009-02-26 2010-08-26 Honeywell International Inc. Fibrous materials, noise suppression materials, and methods of manufacturing noise suppression materials
US8544531B2 (en) * 2010-06-11 2013-10-01 Hs Marston Aerospace Ltd. Surface cooler with noise reduction
FR2961789B1 (fr) * 2010-06-24 2012-07-20 Eurocopter France Procede pour eviter le colmatage d'une grille, grille et entree d'air mettant en oeuvre un tel procede
BR112014011918A2 (pt) * 2011-11-18 2017-05-16 Thermal Systems Holding Llc aparelho e método de isolamento aperfeiçoado
EP2844554B1 (en) 2012-05-03 2022-03-30 Rohr, Inc. Mounting system for a nacelle fire detection system
US9725154B2 (en) * 2014-05-13 2017-08-08 The Boeing Company Method and apparatus for reducing structural vibration and noise
ITUB20152261A1 (it) * 2015-07-17 2017-01-17 Mecaer Aviation Group S P A Pannello multistrato per l'insonorizzazione di interni aeronautici
US20230167774A1 (en) * 2021-12-01 2023-06-01 Rohr, Inc. Attachment ring insulator systems, methods, and assemblies

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Publication number Priority date Publication date Assignee Title
US2081952A (en) * 1934-12-17 1937-06-01 Johns Manville Acoustical construction
US2326763A (en) * 1939-06-28 1943-08-17 Nat Gypsum Co Acoustic material
US2674335A (en) * 1950-01-31 1954-04-06 C W Lemmerman Inc Muffler construction
NL262265A (pt) * 1960-03-11 1900-01-01
US3542152A (en) * 1968-04-08 1970-11-24 Gen Electric Sound suppression panel
US3748213A (en) * 1970-03-13 1973-07-24 Rolls Royce Acoustic linings
US3712846A (en) * 1971-06-23 1973-01-23 Carpenter L & Co Acoustical panel
US3710890A (en) * 1971-09-27 1973-01-16 Boeing Co Aircraft engine noise suppression
US4137992A (en) * 1976-12-30 1979-02-06 The Boeing Company Turbojet engine nozzle for attenuating core and turbine noise
US4130175A (en) * 1977-03-21 1978-12-19 General Electric Company Fluid-impervious acoustic suppression panel
US4235303A (en) * 1978-11-20 1980-11-25 The Boeing Company Combination bulk absorber-honeycomb acoustic panels
US4441578A (en) * 1981-02-02 1984-04-10 Rohr Industries, Inc. Encapsulated bulk absorber acoustic treatments for aircraft engine application
FR2534185A1 (fr) * 1982-10-11 1984-04-13 Conditionnements Aluminium Materiau composite et son application au renforcement des panneaux d'isolation
US4751979A (en) * 1985-05-16 1988-06-21 Airborne Express, Inc. Engine noise suppression kit for the nacelles of a jet aircraft
US4759513A (en) * 1986-09-26 1988-07-26 Quiet Nacelle Corporation Noise reduction nacelle

Also Published As

Publication number Publication date
JPH03501402A (ja) 1991-03-28
EP0391935A1 (en) 1990-10-17
EP0391935A4 (en) 1991-01-23
US4848514A (en) 1989-07-18
WO1989003763A1 (en) 1989-05-05

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