EP0086184A3 - Sound damping device - Google Patents

Sound damping device Download PDF

Info

Publication number
EP0086184A3
EP0086184A3 EP83850021A EP83850021A EP0086184A3 EP 0086184 A3 EP0086184 A3 EP 0086184A3 EP 83850021 A EP83850021 A EP 83850021A EP 83850021 A EP83850021 A EP 83850021A EP 0086184 A3 EP0086184 A3 EP 0086184A3
Authority
EP
European Patent Office
Prior art keywords
sound
damping device
sound damping
chamber
displacement
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Withdrawn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
EP83850021A
Other languages
German (de)
French (fr)
Other versions
EP0086184A2 (en
Inventor
Krister Amnéus
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
Application filed by Individual filed Critical Individual
Publication of EP0086184A2 publication Critical patent/EP0086184A2/en
Publication of EP0086184A3 publication Critical patent/EP0086184A3/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Withdrawn legal-status Critical Current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)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

A sound-damping acoustic device comprises a sheet-­ material member (14) which can be set, by sound, into oscillatory motion transversely to its geometrical extension, and which forms at least a part of the defining walls of a chamber (16). The member (14) is substantially free-­ swinging, and the chamber (16) is at least substantially acoustically closed. The device also comprises means for damping displacement of the member transversely to said geometrical extension in proportion to changes in the rate of displacement.
EP83850021A 1982-02-03 1983-01-28 Sound damping device Withdrawn EP0086184A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8200624 1982-02-03
SE8200624A SE8200624L (en) 1982-02-03 1982-02-03 ACOUSTIC DEVICE

Publications (2)

Publication Number Publication Date
EP0086184A2 EP0086184A2 (en) 1983-08-17
EP0086184A3 true EP0086184A3 (en) 1984-05-02

Family

ID=20345913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83850021A Withdrawn EP0086184A3 (en) 1982-02-03 1983-01-28 Sound damping device

Country Status (10)

Country Link
EP (1) EP0086184A3 (en)
JP (1) JPS59500116A (en)
AU (1) AU1223383A (en)
CA (1) CA1198375A (en)
DK (1) DK435883A (en)
FI (1) FI840850A (en)
NO (1) NO833509L (en)
SE (1) SE8200624L (en)
WO (1) WO1983002793A1 (en)
ZA (1) ZA83591B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9022290D0 (en) * 1990-10-15 1990-11-28 Wilhams Insulations Ltd Absorbers
US5241512A (en) * 1991-04-25 1993-08-31 Hutchinson 2 Acoustic protection material and apparatus including such material
PL294336A1 (en) * 1991-04-25 1992-11-30 Hutchinson Sa Noise damping material and apparatus for protecting against noise incorporating such material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732630C (en) * 1937-04-04 1943-03-08 Lufttechnische Ges M B H Device for noise reduction in pipes
FR1198880A (en) * 1958-02-14 1959-12-10 Chausson Usines Sa Method and device for the absorption of sound waves from vibrating devices
GB932521A (en) * 1961-06-01 1963-07-31 Ferranti Ltd Improvements relating to noise reducing enclosures
FR2300384A1 (en) * 1975-02-07 1976-09-03 Lockheed Aircraft Corp Sound absorbing panel effective in two frequency domains - combines action of Helm holtz resonator with that of laminar honeycomb absorber
FR2301064A1 (en) * 1975-02-14 1976-09-10 Rolls Royce SOUNDPROOFING STRUCTURE FOR TURBOREACTOR DUCTS
EP0046559A2 (en) * 1980-08-27 1982-03-03 Hoechst Aktiengesellschaft Resonant sound-absorbing element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831710A (en) * 1973-01-24 1974-08-27 Lockheed Aircraft Corp Sound absorbing panel
DE2360519C3 (en) * 1973-12-05 1978-04-06 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Soundproof wall element
DE2451520C2 (en) * 1974-10-30 1982-10-21 Gerd Dieter 7326 Heiningen Maibach Noise protection element
DE2645484C2 (en) * 1976-10-08 1978-07-27 Volmer Betonwerk Gmbh & Co Kg, 4100 Duisburg Concrete block for the construction of soundproof walls

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732630C (en) * 1937-04-04 1943-03-08 Lufttechnische Ges M B H Device for noise reduction in pipes
FR1198880A (en) * 1958-02-14 1959-12-10 Chausson Usines Sa Method and device for the absorption of sound waves from vibrating devices
GB932521A (en) * 1961-06-01 1963-07-31 Ferranti Ltd Improvements relating to noise reducing enclosures
FR2300384A1 (en) * 1975-02-07 1976-09-03 Lockheed Aircraft Corp Sound absorbing panel effective in two frequency domains - combines action of Helm holtz resonator with that of laminar honeycomb absorber
FR2301064A1 (en) * 1975-02-14 1976-09-10 Rolls Royce SOUNDPROOFING STRUCTURE FOR TURBOREACTOR DUCTS
EP0046559A2 (en) * 1980-08-27 1982-03-03 Hoechst Aktiengesellschaft Resonant sound-absorbing element

Also Published As

Publication number Publication date
FI840850A0 (en) 1984-03-02
JPS59500116A (en) 1984-01-19
CA1198375A (en) 1985-12-24
SE8200624L (en) 1983-08-04
NO833509L (en) 1983-09-28
FI840850A (en) 1984-03-02
EP0086184A2 (en) 1983-08-17
ZA83591B (en) 1983-11-30
AU1223383A (en) 1983-08-25
WO1983002793A1 (en) 1983-08-18
DK435883D0 (en) 1983-09-23
DK435883A (en) 1983-09-23

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

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Effective date: 19841024

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18D Application deemed to be withdrawn

Effective date: 19860408