FR3095717B1 - SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION - Google Patents

SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION Download PDF

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Publication number
FR3095717B1
FR3095717B1 FR1904645A FR1904645A FR3095717B1 FR 3095717 B1 FR3095717 B1 FR 3095717B1 FR 1904645 A FR1904645 A FR 1904645A FR 1904645 A FR1904645 A FR 1904645A FR 3095717 B1 FR3095717 B1 FR 3095717B1
Authority
FR
France
Prior art keywords
sheet structure
acoustic attenuation
pads
wall
produce acoustic
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
FR1904645A
Other languages
French (fr)
Other versions
FR3095717A1 (en
Inventor
Daniel Osmont
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR1904645A priority Critical patent/FR3095717B1/en
Priority to EP20716522.6A priority patent/EP3963571B1/en
Priority to PCT/EP2020/060310 priority patent/WO2020224916A1/en
Priority to CN202080044194.9A priority patent/CN113994422A/en
Publication of FR3095717A1 publication Critical patent/FR3095717A1/en
Application granted granted Critical
Publication of FR3095717B1 publication Critical patent/FR3095717B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Une garniture surfacique (100) pour produire une atténuation acoustique comprend une structure en nappe déformable qui est destinée à être insérée entre une paroi de base (101) susceptible de devenir localement concave ou convexe, et une paroi superficielle (102) souple. La structure en nappe possède une direction d’orthotropie qui est orientée perpendiculairement à ladite structure en nappe, et qui est associée à une valeur de résistance aux cisaillements plus faible que ses autres directions d’orthotropie. La structure en nappe peut être composée de segments (4, 5) rigides qui connectent des plots de base (1) à fixer sur la paroi de base, ou des plots superficiels glissants (2) à fixer sur la paroi superficielle. Certains des segments sont reliés entre eux et aux plots superficiels par des liaisons rotatives (R1, R2).Figure d’abrégé : Figure 1aA surface lining (100) for producing acoustic attenuation comprises a deformable sheet structure which is intended to be inserted between a base wall (101) capable of becoming locally concave or convex, and a flexible surface wall (102). The sheet structure has an orthotropic direction which is oriented perpendicular to said sheet structure, and which is associated with a lower shear strength value than its other orthotropic directions. The sheet structure can be composed of rigid segments (4, 5) which connect base pads (1) to be fixed on the base wall, or sliding surface pads (2) to be fixed on the surface wall. Some of the segments are connected to each other and to the surface pads by rotary links (R1, R2).Abstract Figure: Figure 1a

FR1904645A 2019-05-03 2019-05-03 SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION Active FR3095717B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR1904645A FR3095717B1 (en) 2019-05-03 2019-05-03 SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION
EP20716522.6A EP3963571B1 (en) 2019-05-03 2020-04-10 Surface trim element for producing an acoustic attenuation
PCT/EP2020/060310 WO2020224916A1 (en) 2019-05-03 2020-04-10 Surface trim element for producing an acoustic attenuation
CN202080044194.9A CN113994422A (en) 2019-05-03 2020-04-10 Surface decoration element for generating sound attenuation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1904645 2019-05-03
FR1904645A FR3095717B1 (en) 2019-05-03 2019-05-03 SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION

Publications (2)

Publication Number Publication Date
FR3095717A1 FR3095717A1 (en) 2020-11-06
FR3095717B1 true FR3095717B1 (en) 2022-04-15

Family

ID=68138269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1904645A Active FR3095717B1 (en) 2019-05-03 2019-05-03 SURFACE TRIM TO PRODUCE ACOUSTIC ATTENUATION

Country Status (4)

Country Link
EP (1) EP3963571B1 (en)
CN (1) CN113994422A (en)
FR (1) FR3095717B1 (en)
WO (1) WO2020224916A1 (en)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07227926A (en) * 1994-02-18 1995-08-29 Asahi Fiber Glass Co Ltd Sound absorbing and heat insulating board, heat insulating panel using the same and manufacture thereof
FR2739213B1 (en) * 1995-09-21 1998-03-06 Artec Aerospace Sarl METHOD FOR ATTENUATING THE AMPLITUDE OF THE RADIUS PRESSURE WAVE BY THE SURFACE OF A MATERIAL SUBJECT TO MECHANICAL AND / OR ACOUSTIC VIBRATION AT THE LEVEL OF AN INCIDENT OR REFLECTED SURFACE
GB2345951A (en) * 1999-01-19 2000-07-26 Draftex Ind Ltd Sound-absorbing structure
CH697310B1 (en) * 2004-12-23 2008-08-15 Fortatech Ag Lattice mat, especially as a floor protection or reinforcement of a floor covering.
DE102010005066A1 (en) * 2010-01-13 2011-07-14 Knauer, Dieter, 73240 structural element
NL2004345C2 (en) * 2010-03-05 2011-09-09 Hans Hill Damping element.
JP5868858B2 (en) * 2010-09-08 2016-02-24 株式会社Uacj Plate material having concavo-convex part, vehicle panel and laminated structure using the same
US8172036B2 (en) * 2010-09-10 2012-05-08 The Boeing Company Apparatus and method for providing acoustic metamaterial
US9222229B1 (en) * 2013-10-10 2015-12-29 Hrl Laboratories, Llc Tunable sandwich-structured acoustic barriers
FR3012653B1 (en) * 2013-10-31 2017-03-03 Eurocopter France ACOUSTICALLY INSULATING COATING WITH RESONATORS, A PANEL PROVIDED WITH THIS COATING, AND AN AIRCRAFT
EP3180185B1 (en) * 2014-08-12 2020-10-14 HRL Laboratories, LLC Progressive stiffness structural-acoustic sandwich panel
JP6023845B1 (en) * 2015-04-28 2016-11-09 加川　清二 Electromagnetic absorption panel
WO2017057031A1 (en) * 2015-09-29 2017-04-06 ヤマハ株式会社 Vibrating structure
EP3239973A1 (en) * 2016-04-28 2017-11-01 Eidgenössische Materialprüfungs- und Forschungsanstalt EMPA Phononic crystal vibration isolator with inertia amplification mechanism
DE102016117113B3 (en) * 2016-09-12 2018-02-01 Johann Kreuter Structural mat, structured mat composite, sandwich structure and method and apparatus for producing a structural mat

Also Published As

Publication number Publication date
CN113994422A (en) 2022-01-28
EP3963571A1 (en) 2022-03-09
FR3095717A1 (en) 2020-11-06
EP3963571B1 (en) 2023-01-04
WO2020224916A1 (en) 2020-11-12

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