IL47021A0 - Cellular sound absorptive structure - Google Patents

Cellular sound absorptive structure

Info

Publication number
IL47021A0
IL47021A0 IL47021A IL4702175A IL47021A0 IL 47021 A0 IL47021 A0 IL 47021A0 IL 47021 A IL47021 A IL 47021A IL 4702175 A IL4702175 A IL 4702175A IL 47021 A0 IL47021 A0 IL 47021A0
Authority
IL
Israel
Prior art keywords
sound absorptive
absorptive structure
cellular sound
cellular
sound
Prior art date
Application number
IL47021A
Other versions
IL47021A (en
Original Assignee
Lockheed Aircraft Corp
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
Priority claimed from US458676A external-priority patent/US3913702A/en
Application filed by Lockheed Aircraft Corp filed Critical Lockheed Aircraft Corp
Publication of IL47021A0 publication Critical patent/IL47021A0/en
Publication of IL47021A publication Critical patent/IL47021A/en

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
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT 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
    • B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
    • B64D33/06—Silencing exhaust or propulsion jets
    • 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
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Pipe Accessories (AREA)
IL47021A 1974-04-08 1975-04-06 Cellular sound absorptive structure IL47021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458676A US3913702A (en) 1973-06-04 1974-04-08 Cellular sound absorptive structure

Publications (2)

Publication Number Publication Date
IL47021A0 true IL47021A0 (en) 1975-06-25
IL47021A IL47021A (en) 1977-11-30

Family

ID=23821679

Family Applications (1)

Application Number Title Priority Date Filing Date
IL47021A IL47021A (en) 1974-04-08 1975-04-06 Cellular sound absorptive structure

Country Status (9)

Country Link
JP (1) JPS6014359B2 (en)
BE (1) BE827666A (en)
CA (1) CA1051351A (en)
DE (1) DE2515127C2 (en)
FR (1) FR2266929B1 (en)
GB (1) GB1502314A (en)
IL (1) IL47021A (en)
IT (1) IT1035218B (en)
SE (1) SE405134B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265955A (en) * 1978-05-01 1981-05-05 The Boeing Company Honeycomb core with internal septum and method of making same
GB2038410B (en) * 1978-12-27 1982-11-17 Rolls Royce Acoustic lining utilising resonance
DE3020849A1 (en) * 1980-06-02 1981-12-17 Messerschmitt-Bölkow-Blohm GmbH, 8000 München SCREENS WITH RESONATORS, IN PARTICULAR SILATORS
DE3140270A1 (en) * 1981-10-10 1983-04-28 Autoflug Gmbh, 2084 Rellingen Motor vehicle frame part with belt retractor and tensioning device
DE4011705A1 (en) * 1990-04-11 1991-10-17 Freudenberg Carl Fa AIR SOUND ABSORBING MOLDED PART
GB9101395D0 (en) * 1991-01-22 1991-03-06 Short Brothers Plc Structural cellular component
DE4415983C2 (en) † 1994-05-06 1998-02-19 Continental Ag Device to be attached to the wheel arch of a motor vehicle and acting as a passive sound absorber
DE19804718C2 (en) * 1998-02-06 2001-09-13 Eurocopter Deutschland Sound absorbing sandwich wall
DE19841975B4 (en) * 1998-09-14 2004-02-12 Continental Aktiengesellschaft Sound absorbing plate
DE10001932A1 (en) 2000-01-19 2001-08-02 Kautex Textron Gmbh & Co Kg Cladding element
US6918740B2 (en) * 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
JP2013015118A (en) * 2011-07-06 2013-01-24 Toyota Boshoku Corp Sound absorbing structure
DE102013000691A1 (en) * 2013-01-15 2014-07-17 Kai Klinder Sound absorbing hollow cavity has main portion that is provided with honeycomb structure with extremely thin inner walls and damping element
CN110473510B (en) * 2019-07-31 2024-06-18 中国船舶重工集团公司第七一四研究所 Cell structure based on phonon crystal and return air sound insulation device
JP7475932B2 (en) * 2020-04-01 2024-04-30 プレス工業株式会社 Automotive soundproof cover structure
US11668236B2 (en) * 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
CN112002300A (en) * 2020-10-12 2020-11-27 株洲时代新材料科技股份有限公司 Broadband resonance sound absorption method and structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166149A (en) * 1965-01-19 Damped-resonator acoustical panels
US3831710A (en) * 1973-01-24 1974-08-27 Lockheed Aircraft Corp Sound absorbing panel

Also Published As

Publication number Publication date
FR2266929A1 (en) 1975-10-31
IL47021A (en) 1977-11-30
GB1502314A (en) 1978-03-01
FR2266929B1 (en) 1980-04-25
AU7988375A (en) 1976-10-14
BE827666A (en) 1975-10-08
IT1035218B (en) 1979-10-20
SE405134B (en) 1978-11-20
DE2515127C2 (en) 1986-04-30
SE7503813L (en) 1975-10-09
CA1051351A (en) 1979-03-27
JPS50138615A (en) 1975-11-05
JPS6014359B2 (en) 1985-04-12
DE2515127A1 (en) 1975-10-16

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