EP3384486B1 - Akustisches reflektierendes metamaterial - Google Patents

Akustisches reflektierendes metamaterial Download PDF

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Publication number
EP3384486B1
EP3384486B1 EP16819152.6A EP16819152A EP3384486B1 EP 3384486 B1 EP3384486 B1 EP 3384486B1 EP 16819152 A EP16819152 A EP 16819152A EP 3384486 B1 EP3384486 B1 EP 3384486B1
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EP
European Patent Office
Prior art keywords
cavity
cell
fabry
acoustic
elementary
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
EP16819152.6A
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English (en)
French (fr)
Other versions
EP3384486A1 (de
Inventor
Abdelkrim Khelif
Mahmoud ADDOUCHE
Aliyasin EL AYOUCH
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.)
Centre National de la Recherche Scientifique CNRS
Universite de Franche-Comte
Original Assignee
Centre National de la Recherche Scientifique CNRS
Universite de Franche-Comte
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Publication date
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Publication of EP3384486A1 publication Critical patent/EP3384486A1/de
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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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/04—Acoustic filters ; Acoustic resonators
    • 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
    • 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
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3227—Resonators

Definitions

  • Noise pollution in everyday life for example from the external environment, such as the proximity of a road or air axis, or interior such as the noise of household appliances, are stress factors which deteriorate the comfort of life.
  • the invention also relates to an acoustic screen in the form of a panel, comprising at least one elementary cell according to the invention.
  • a screen can only comprise elementary reflecting cells according to the invention, but it can also include other acoustic elements, for example absorbing acoustic cells.
  • plane of the panel is meant in the sense of the present application the surface of the panel which may be flat or curved.
  • the parallelepipedal shape of the elementary cell 100 has the advantage of allowing better filling of the surface of an acoustic panel.
  • the invention also relates to an acoustic screen comprising one or more elementary cells in accordance with the invention and as described above.
  • Pressure measurements are performed using two terminations with different impedance conditions.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (8)

  1. Elementarzelle (1; 1'; 1"; 10; 100; 100') aus akustischem Metamaterial, umfassend:
    - einen Körper aus festem Material (2; 2'; 2"; 20; 200; 200'),
    - mindestens einen Hohlraum vom Fabry-Perot-Typ (3; 3'; 3"; 30; 300; 300') in dem Körper (2; 2'; 2"; 20; 200; 200') und
    - mindestens einen seitlichen Resonanzhohlraum (4; 4'; 4"; 41, 42, 43; 400; 400'), der ein akustischer Resonator vom Helmholtz-Typ ist und mit dem Hohlraum vom Fabry-Perot-Typ (3; 3'; 3"; 30; 300; 300') in Verbindung steht,
    dadurch gekennzeichnet, dass der Hohlraum vom Fabry-Perot-Typ (3; 3'; 3"; 30; 300; 300') eine Leitung ist, die durch den Körper (2; 2'; 2"; 20; 200; 200') hindurchgeht,
    und dadurch, dass der Helmholtz-Resonator ein zylindrischer Hohlraum (4; 4'; 4"; 41, 42, 43; 400; 400') ist, der mit der Durchgangsleitung (3; 3'; 3"; 30; 300; 300') konzentrisch ist und mit der Leitung (3; 3'; 3"; 30; 300; 300') durch einen Hals (5; 5'; 5"; 50; 500; 500') in Verbindung steht.
  2. Zelle (1; 1'; 1"; 10; 100; 100') nach Anspruch 1, wobei die Durchgangsleitung (3; 3'; 3"; 30; 300; 300') zylindrisch ist.
  3. Zelle (1; 1'; 1"; 10; 100; 100') nach einem der Ansprüche 1 bis 2, wobei der Zellkörper (2; 2'; 2"; 20; 200; 200') parallelepipedförmig oder zylindrisch ist.
  4. Zelle (10) nach einem der Ansprüche 1 bis 3, wobei der Körper (20) aus festem Material zwei oder mehr Helmholtz-Resonatoren (41, 42, 43) mit unterschiedlichen Abmessungen aufweist.
  5. Zelle (100; 100') nach einem der Ansprüche 1 bis 4, wobei der Fabry-Perot-Hohlraum (300') und/oder der laterale Resonanzhohlraum (400) so zusammengefaltet ist/sind, dass er mindestens einen Einlass, mindestens einen Auslass und mindestens zwei Falten vorweist.
  6. Akustische Abschirmung in Form einer Platte, die mindestens eine Elementarzelle (1; 1'; 1"; 10; 100; 100') umfasst, nach einem der Ansprüche 1 bis 5.
  7. Akustische Abschirmung nach Anspruch 6, umfassend eine Vielzahl von Elementarzellen (1; 1'; 1"; 10; 100; 100'), wobei die Zellen in einer Ebene der Platte so angeordnet sind, dass jede Elementarzelle (1; 1 1"; 10; 100; 100') auf eine andere benachbarte Elementarzelle (1; 1'; 1"; 10; 100; 100') einwirken kann, um das Reflexionsfrequenzband zu erweitern.
  8. Akustische Abschirmung nach Anspruch 7, wobei die Elementarzellen (1; 1'; 1"; 10; 100; 100') in der Ebene der Platte periodisch angeordnet sind.
EP16819152.6A 2015-12-02 2016-12-02 Akustisches reflektierendes metamaterial Active EP3384486B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561750A FR3044813B1 (fr) 2015-12-02 2015-12-02 Metamateriau acoustique reflecteur
PCT/FR2016/053187 WO2017093690A1 (fr) 2015-12-02 2016-12-02 Métamatériau acoustique réflecteur

Publications (2)

Publication Number Publication Date
EP3384486A1 EP3384486A1 (de) 2018-10-10
EP3384486B1 true EP3384486B1 (de) 2021-07-28

Family

ID=55300608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16819152.6A Active EP3384486B1 (de) 2015-12-02 2016-12-02 Akustisches reflektierendes metamaterial

Country Status (4)

Country Link
EP (1) EP3384486B1 (de)
ES (1) ES2894800T3 (de)
FR (1) FR3044813B1 (de)
WO (1) WO2017093690A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114339535A (zh) * 2021-12-22 2022-04-12 南京大学 一种声学超构材料滤波器

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101825480B1 (ko) * 2016-04-29 2018-03-23 서울대학교산학협력단 음향 파라미터 제어형 메타 원자 및 이를 포함하는 메타 물질
US10873812B2 (en) 2017-02-09 2020-12-22 The University Of Sussex Acoustic wave manipulation by means of a time delay array
SE544189C2 (en) * 2018-02-13 2022-02-22 Faurecia Creo Ab Acoustic damper for a gas duct system
CN110895923B (zh) * 2018-09-13 2022-03-18 南京大学 一种用于低频噪声控制的亚波长宽带超材料吸收体
GB201905258D0 (en) * 2019-04-12 2019-05-29 Univ Of Sussex acoustic metamaterial systems
CN110609086B (zh) * 2019-09-24 2022-08-09 哈尔滨工程大学 一种声学超材料板结构的实验装置
CN113281402B (zh) * 2021-04-12 2024-03-12 西安理工大学 一种基于f-p的广义磁电效应测量探头及测量方法
WO2023167649A1 (en) * 2022-03-01 2023-09-07 Metadyna Mühendi̇sli̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Meta cells and an acoustic metamaterial panel comprising at least one acoustic meta cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114339535A (zh) * 2021-12-22 2022-04-12 南京大学 一种声学超构材料滤波器

Also Published As

Publication number Publication date
ES2894800T3 (es) 2022-02-15
WO2017093690A1 (fr) 2017-06-08
FR3044813B1 (fr) 2018-11-02
FR3044813A1 (fr) 2017-06-09
EP3384486A1 (de) 2018-10-10

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