FR2434450A1 - SOUND ABSORPTION DEVICE - Google Patents

SOUND ABSORPTION DEVICE

Info

Publication number
FR2434450A1
FR2434450A1 FR7918929A FR7918929A FR2434450A1 FR 2434450 A1 FR2434450 A1 FR 2434450A1 FR 7918929 A FR7918929 A FR 7918929A FR 7918929 A FR7918929 A FR 7918929A FR 2434450 A1 FR2434450 A1 FR 2434450A1
Authority
FR
France
Prior art keywords
sound absorption
absorption device
multifrequency
soundproofing
widths
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.)
Withdrawn
Application number
FR7918929A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 DE19782832569 external-priority patent/DE2832569A1/en
Priority claimed from DE19782834683 external-priority patent/DE2834683C2/en
Application filed by Individual filed Critical Individual
Publication of FR2434450A1 publication Critical patent/FR2434450A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Building Environments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Insonorisation. Résonateur multifréquences constitué par une plaque 6, 12 en polyéthylène expansé à cellules fermées et présentant des espaces creux 7, 13 en forme de canaux de sections différentes et communiquant avec l'atmosphère par des fentes 11, 16 de profondeurs et de largeurs différentes. Absorption de son en milieu très humide.Soundproofing. Multifrequency resonator consisting of a plate 6, 12 of closed-cell expanded polyethylene and having hollow spaces 7, 13 in the form of channels of different sections and communicating with the atmosphere by slots 11, 16 of different depths and widths. Sound absorption in very humid environment.

FR7918929A 1978-07-25 1979-07-23 SOUND ABSORPTION DEVICE Withdrawn FR2434450A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782832569 DE2832569A1 (en) 1978-07-25 1978-07-25 Sound absorbent panels - pref. made of closed-cell polyethylene
DE19782834683 DE2834683C2 (en) 1978-08-08 1978-08-08 Sound absorber

Publications (1)

Publication Number Publication Date
FR2434450A1 true FR2434450A1 (en) 1980-03-21

Family

ID=25775155

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7918929A Withdrawn FR2434450A1 (en) 1978-07-25 1979-07-23 SOUND ABSORPTION DEVICE

Country Status (4)

Country Link
FR (1) FR2434450A1 (en)
GB (1) GB2027255B (en)
NL (1) NL7905519A (en)
SE (1) SE7906333L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553808A1 (en) * 1983-10-25 1985-04-26 Socea Balency Sobea Structural element having integrated acoustic absorption

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS125892A3 (en) * 1991-04-25 1992-12-16 Hutchinson Material for ensuring acoustic protection against noise source and anacoustic protecting system made therefrom
US5241512A (en) * 1991-04-25 1993-08-31 Hutchinson 2 Acoustic protection material and apparatus including such material
GB2272749B (en) * 1992-11-21 1996-06-12 Insoleq Limited Improvements in acoustic and thermal insulation for aircraft
DE9312734U1 (en) * 1993-08-25 1995-01-05 FAIST Automotive GmbH & Co. KG, 86381 Krumbach Multi-layer soundproofing and damping component
GB9323829D0 (en) * 1993-11-19 1994-01-05 Dow Deutschland Inc Acoustic insulating panels or elements
US6007890A (en) * 1993-11-19 1999-12-28 The Dow Chemical Company Acoustic insulating panels or elements
DE19540259C1 (en) * 1995-10-28 1996-11-21 Continental Ag Wheel running cover for wheel and-or axles on lorries
DE69809715D1 (en) * 1997-03-07 2003-01-09 Oscar Avian METHOD FOR PRODUCING SOUND-INSULATING BUILDING PLATES OR SURFACES FOR INTERIORS
US6789645B1 (en) 1999-06-09 2004-09-14 The Dow Chemical Company Sound-insulating sandwich element
US9607600B2 (en) 2009-02-06 2017-03-28 Sonobex Limited Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers
GB0901982D0 (en) 2009-02-06 2009-03-11 Univ Loughborough Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers
CN101727894B (en) * 2010-01-08 2012-05-23 中国科学院声学研究所 Composite sound absorbing device with built-in resonant cavity
KR101438974B1 (en) 2012-12-28 2014-09-11 현대자동차주식회사 Wheel guard for vehicle
FR3010225B1 (en) 2013-08-29 2016-12-30 Centre Nat Rech Scient ABSORBENT ACOUSTIC PANEL
IT201700006516A1 (en) * 2017-01-23 2018-07-23 Pregymix S R L INSULATION SYSTEM PREFABRICATED FOR THE CONSTRUCTION OF RAILWAY FENCES
FR3065570B1 (en) * 2017-04-21 2019-05-03 Office National D'etudes Et De Recherches Aerospatiales SURFACIAL TRIM FOR ACOUSTIC ABSORPTION
CN109754776B (en) * 2019-03-20 2023-07-21 哈尔滨工程大学 Low-frequency broadband sound absorption covering layer embedded with cylindrical cavity array

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1340650A (en) * 1961-12-08 1963-10-18 Applied Acoustics Ltd Sound absorption panel
US3506089A (en) * 1968-10-25 1970-04-14 Cambridge Acoustical Associate Sound absorptive structural block
FR2088346A3 (en) * 1970-05-05 1972-01-07 Danzer Kg Karl
GB1304939A (en) * 1970-04-21 1973-01-31
FR2261584A1 (en) * 1974-02-20 1975-09-12 Freudenberg Carl
DE2649816A1 (en) * 1976-10-29 1978-05-11 Huebner Gummi & Kunststoff Sound-absorbing panel of soft, flexible, polyurethane foam - has integral skin and blind holes to improve noise absorption

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1340650A (en) * 1961-12-08 1963-10-18 Applied Acoustics Ltd Sound absorption panel
US3506089A (en) * 1968-10-25 1970-04-14 Cambridge Acoustical Associate Sound absorptive structural block
GB1304939A (en) * 1970-04-21 1973-01-31
FR2088346A3 (en) * 1970-05-05 1972-01-07 Danzer Kg Karl
FR2261584A1 (en) * 1974-02-20 1975-09-12 Freudenberg Carl
DE2649816A1 (en) * 1976-10-29 1978-05-11 Huebner Gummi & Kunststoff Sound-absorbing panel of soft, flexible, polyurethane foam - has integral skin and blind holes to improve noise absorption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553808A1 (en) * 1983-10-25 1985-04-26 Socea Balency Sobea Structural element having integrated acoustic absorption

Also Published As

Publication number Publication date
SE7906333L (en) 1980-01-27
NL7905519A (en) 1980-01-29
GB2027255B (en) 1982-09-02
GB2027255A (en) 1980-02-13

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Legal Events

Date Code Title Description
ST Notification of lapse