FR2914479B1 - Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau. - Google Patents

Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau.

Info

Publication number
FR2914479B1
FR2914479B1 FR0754136A FR0754136A FR2914479B1 FR 2914479 B1 FR2914479 B1 FR 2914479B1 FR 0754136 A FR0754136 A FR 0754136A FR 0754136 A FR0754136 A FR 0754136A FR 2914479 B1 FR2914479 B1 FR 2914479B1
Authority
FR
France
Prior art keywords
reducing device
noise reducing
acoustic treatment
treatment wall
porous material
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.)
Active
Application number
FR0754136A
Other languages
English (en)
Other versions
FR2914479A1 (fr
Inventor
Patrice Caule
Jacques Michel Albert Julliard
Georges Jean Xavier Riou
Charlie Desire Roy
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.)
Safran Aircraft Engines SAS
Safran Ventilation Systems SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR0754136A priority Critical patent/FR2914479B1/fr
Publication of FR2914479A1 publication Critical patent/FR2914479A1/fr
Application granted granted Critical
Publication of FR2914479B1 publication Critical patent/FR2914479B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR0754136A 2007-03-29 2007-03-29 Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau. Active FR2914479B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0754136A FR2914479B1 (fr) 2007-03-29 2007-03-29 Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0754136A FR2914479B1 (fr) 2007-03-29 2007-03-29 Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau.

Publications (2)

Publication Number Publication Date
FR2914479A1 FR2914479A1 (fr) 2008-10-03
FR2914479B1 true FR2914479B1 (fr) 2014-10-17

Family

ID=38668740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0754136A Active FR2914479B1 (fr) 2007-03-29 2007-03-29 Materiau poreux pour paroi de traitement acoustique. dispositif reducteur de bruit utilisant ce materiau.

Country Status (1)

Country Link
FR (1) FR2914479B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10723435B2 (en) 2015-04-29 2020-07-28 Bombardier Inc. Acoustic abatement apparatus for an aircraft
CN108399911B (zh) * 2017-02-06 2024-03-22 北京市劳动保护科学研究所 一种低频宽带的通风散热隔声结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068001A (en) * 1987-12-16 1991-11-26 Reinhold Haussling Method of making a sound absorbing laminate
FR2818581B1 (fr) * 2000-12-21 2003-03-28 Eads Airbus Sa Procede de fabrication d'un panneau a couche d'amortissement acoustique protegee et panneau acoustique ainsi obtenu
FR2823590B1 (fr) * 2001-04-17 2003-07-25 Eads Airbus Sa Panneau d'attenuation acoustique comportant une couche resistive a composante structurale renforcee
US20040180177A1 (en) * 2003-03-12 2004-09-16 Ray Kyle A. Thermoformable acoustic material
DE10324257B3 (de) * 2003-05-28 2004-09-30 Clion Ireland Ltd., Newton Schallabsorber, Verfahren zur Herstellung, und Verwendung
US6831876B1 (en) * 2003-07-09 2004-12-14 Goodrich Corporation Acoustic window

Also Published As

Publication number Publication date
FR2914479A1 (fr) 2008-10-03

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Owner name: SAFRAN AIRCRAFT ENGINES, FR

Effective date: 20210910

Owner name: SAFRAN VENTILATION SYSTEMS, FR

Effective date: 20210910

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