WO2006118443A1 - Reduction sonore a bande large avec un resonateur acoustique - Google Patents

Reduction sonore a bande large avec un resonateur acoustique Download PDF

Info

Publication number
WO2006118443A1
WO2006118443A1 PCT/NL2006/000228 NL2006000228W WO2006118443A1 WO 2006118443 A1 WO2006118443 A1 WO 2006118443A1 NL 2006000228 W NL2006000228 W NL 2006000228W WO 2006118443 A1 WO2006118443 A1 WO 2006118443A1
Authority
WO
WIPO (PCT)
Prior art keywords
resonators
sound
structural element
panel construction
foregoing
Prior art date
Application number
PCT/NL2006/000228
Other languages
English (en)
Inventor
Hans Wijnant Ysbrand
Marieke Henriëtte Cathrien HANNINK
Jacob Piet Vlasma
Original Assignee
Universiteit Twente
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 Universiteit Twente filed Critical Universiteit Twente
Priority to EP06733033A priority Critical patent/EP1875461A1/fr
Publication of WO2006118443A1 publication Critical patent/WO2006118443A1/fr

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

Definitions

  • the method described herein not only comprises of reducing the radiated acoustic power when the structural element is acoustically excited, for instance when the structural element is used as partition wall and is irradiated with an airborne sound source.
  • the method can also comprise of reducing the radiated acoustic power when the structural element is mechanically excited, for instance when the structural element is set into vibration by a mechanical vibration source.
  • a panel construction wherein a resonator is formed by a tube which debouches into one or more further tube parts arranged adjacently of the tube.
  • This embodiment is preferably formed by a tube which is placed in a larger enclosed space.
  • the invention also relates to a vehicle, in particular an aircraft, provided with the panel construction according to the invention defined herein.
  • Figure 2 shows a top view of the cross-section (area A r ) of the resonator and the characteristic region A c thereof;
  • Figure 3 is a schematic representation of the incident, reflected and transmitted sound;
  • Figure 5 shows a perspective view of a second preferred embodiment of a sound-reducing panel according to the invention.
  • Figure 6 shows a graph of the transmission loss as a function of the frequency for a second preferred embodiment of the invention.
  • the resonators are arranged in irregular manner over the surface of plate 2.
  • the positions and/or the lengths of the different resonators are adapted to the dynamic properties of the plate.
  • Some parts of the construction (plate) can vibrate in different ways at different frequencies. At those frequencies where a part of the construction vibrates violently, resonators can be applied at that position which are designed for such frequencies.
  • Other parts of the construction (plate) can then be provided with resonators which are tuned to other frequencies at which these other parts vibrate violently.
  • the embodiment of the resonators and the positioning thereof is thus adapted subject to the properties of the different structural parts, i.e. depending on how the different structural parts vibrate per frequency range, in order to produce an optimal sound reduction of the sound radiated by the entire construction.

Landscapes

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

Abstract

La présente invention concerne un procédé de réduction de bande large du son diffusé depuis un élément structurel vibrant, comprenant la détermination d’une fréquence de centre, autour de laquelle le niveau sonore peut subir une réduction de bande large, et l’agencement d’un certain nombre de résonateurs dans un élément structurel doté d’une surface externe acoustiquement endurcie, selon lequel les résonateurs débouchent sur ladite surface externe acoustiquement endurcie, selon lequel la longueur (L) des résonateurs est environ égale à co/2fc, avec co étant la vitesse du son et selon lequel les résonateurs sont incorporés pour donner une porosité (Ω) de l’élément structurel comprise entre environ 0,1 et 0,9.
PCT/NL2006/000228 2005-04-29 2006-04-28 Reduction sonore a bande large avec un resonateur acoustique WO2006118443A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06733033A EP1875461A1 (fr) 2005-04-29 2006-04-28 Reduction sonore a bande large avec un resonateur acoustique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1028909 2005-04-29
NL1028909A NL1028909C2 (nl) 2005-04-29 2005-04-29 Breedbandige geluidreductie met akoestische resonatoren.

Publications (1)

Publication Number Publication Date
WO2006118443A1 true WO2006118443A1 (fr) 2006-11-09

Family

ID=35896096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/000228 WO2006118443A1 (fr) 2005-04-29 2006-04-28 Reduction sonore a bande large avec un resonateur acoustique

Country Status (3)

Country Link
EP (1) EP1875461A1 (fr)
NL (1) NL1028909C2 (fr)
WO (1) WO2006118443A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20100033A1 (it) * 2010-03-23 2011-09-24 Federico Nardini Dispositivo fonoassorbente particolarmente per barriere antirumore.
WO2013142579A1 (fr) * 2012-03-21 2013-09-26 Aero Systems Engineering, Inc. Silencieux comprenant des éléments allongés
US9378721B2 (en) 2013-11-06 2016-06-28 Zin Technologies, Inc. Low frequency acoustic attenuator and process for making same
US9697817B2 (en) 2015-05-14 2017-07-04 Zin Technologies, Inc. Tunable acoustic attenuation
US10657947B2 (en) 2017-08-10 2020-05-19 Zin Technologies, Inc. Integrated broadband acoustic attenuator
EP3715894A1 (fr) * 2019-03-28 2020-09-30 Koninklijke Philips N.V. Bouclier acoustique pour un assemblage d'un aimant d'imagerie par résonance magnétique
US20210074255A1 (en) * 2019-09-11 2021-03-11 The Hong Kong University Of Science And Technology Broadband sound absorber based on inhomogeneous-distributed helmholtz resonators with extended necks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106124798A (zh) * 2016-06-14 2016-11-16 大连理工大学 一种基于核磁共振成像测量多孔介质内对流混合过程速度场的方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163798A1 (de) * 1971-12-22 1973-07-05 Messerschmitt Boelkow Blohm Resonanzabsorber fuer periodische und aperiodische schwingungen
GB2111122A (en) * 1981-12-08 1983-06-29 Volzh Ob Proizv Silencer arrangement at the inlet of an I.C. engine air cleaner
NL8304487A (nl) * 1983-12-29 1985-07-16 Johan Onno Dekker Geluiddempende ventilatiekast.
US4743740A (en) * 1985-10-07 1988-05-10 Rohr Industries, Inc. Buried element deicer
EP0337077A1 (fr) * 1988-04-13 1989-10-18 Deutsche Aerospace AG Dispositif d'amortissement des vibrations acoustiques et des corps solides
EP0499674A1 (fr) * 1991-02-21 1992-08-26 Siemens Aktiengesellschaft Dispositif pour la suppression des réflexions acoustiques dans les combinés téléphoniques
US5583324A (en) * 1994-02-08 1996-12-10 Tekna Sonic, Inc. Vibration damping device
WO1998050905A1 (fr) * 1997-05-07 1998-11-12 Rieter Automotive (International) Ag Procede pour l'obtention d'un rayonnement acoustique controle selectivement
US5959265A (en) * 1995-01-27 1999-09-28 Rieter Automotive (International) Ag Lambda/4-wave sound absorber

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2163798A1 (de) * 1971-12-22 1973-07-05 Messerschmitt Boelkow Blohm Resonanzabsorber fuer periodische und aperiodische schwingungen
GB2111122A (en) * 1981-12-08 1983-06-29 Volzh Ob Proizv Silencer arrangement at the inlet of an I.C. engine air cleaner
NL8304487A (nl) * 1983-12-29 1985-07-16 Johan Onno Dekker Geluiddempende ventilatiekast.
US4743740A (en) * 1985-10-07 1988-05-10 Rohr Industries, Inc. Buried element deicer
EP0337077A1 (fr) * 1988-04-13 1989-10-18 Deutsche Aerospace AG Dispositif d'amortissement des vibrations acoustiques et des corps solides
EP0499674A1 (fr) * 1991-02-21 1992-08-26 Siemens Aktiengesellschaft Dispositif pour la suppression des réflexions acoustiques dans les combinés téléphoniques
US5583324A (en) * 1994-02-08 1996-12-10 Tekna Sonic, Inc. Vibration damping device
US5959265A (en) * 1995-01-27 1999-09-28 Rieter Automotive (International) Ag Lambda/4-wave sound absorber
WO1998050905A1 (fr) * 1997-05-07 1998-11-12 Rieter Automotive (International) Ag Procede pour l'obtention d'un rayonnement acoustique controle selectivement

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20100033A1 (it) * 2010-03-23 2011-09-24 Federico Nardini Dispositivo fonoassorbente particolarmente per barriere antirumore.
WO2013142579A1 (fr) * 2012-03-21 2013-09-26 Aero Systems Engineering, Inc. Silencieux comprenant des éléments allongés
US8863895B2 (en) 2012-03-21 2014-10-21 Aero Systems Engineering, Inc. Silencer incorporating elongated members
US9378721B2 (en) 2013-11-06 2016-06-28 Zin Technologies, Inc. Low frequency acoustic attenuator and process for making same
US9697817B2 (en) 2015-05-14 2017-07-04 Zin Technologies, Inc. Tunable acoustic attenuation
US10657947B2 (en) 2017-08-10 2020-05-19 Zin Technologies, Inc. Integrated broadband acoustic attenuator
EP3715894A1 (fr) * 2019-03-28 2020-09-30 Koninklijke Philips N.V. Bouclier acoustique pour un assemblage d'un aimant d'imagerie par résonance magnétique
WO2020193389A1 (fr) * 2019-03-28 2020-10-01 Koninklijke Philips N.V. Écran acoustique pour ensemble d'aimant d'imagerie par résonance magnétique
US11656307B2 (en) 2019-03-28 2023-05-23 Koninklijke Philips N.V. Acoustic shield for a magnetic resonance imaging magnet assembly
US20210074255A1 (en) * 2019-09-11 2021-03-11 The Hong Kong University Of Science And Technology Broadband sound absorber based on inhomogeneous-distributed helmholtz resonators with extended necks
US11929053B2 (en) * 2019-09-11 2024-03-12 The Hong Kong University Of Science And Technology Broadband sound absorber based on inhomogeneous-distributed Helmholtz resonators with extended necks

Also Published As

Publication number Publication date
EP1875461A1 (fr) 2008-01-09
NL1028909C2 (nl) 2006-10-31

Similar Documents

Publication Publication Date Title
EP1875461A1 (fr) Reduction sonore a bande large avec un resonateur acoustique
US5633067A (en) Engine compartment casing element with perforated foam layer
US6186270B1 (en) Layered sound absorber for absorbing acoustic sound waves
US20210237394A1 (en) Acoustic material structure and method for assembling same and acoustic radiation structure
EP0700030B1 (fr) Dispositif d'absorption de son utilisant un matériau poreux
EP2328141A2 (fr) Résonateur acoustique et chambre sonore
JP2004062074A (ja) 吸音装置
EP2402936B1 (fr) Structure acoustique
US20090223738A1 (en) Sound absorbing structure and vehicle component having sound absorption property
KR20000049116A (ko) 음파를 흡수 및/또는 감쇠하기 위한 장치
US11841163B2 (en) Silencing system
US20210331630A1 (en) Silencing member for electrified vehicle
RU2059772C1 (ru) Акустическая панель
CN112382264A (zh) 一种宽频吸声结构
RU28502U1 (ru) Двустенная панель модульного типа
JP2010052632A (ja) 車体構造体およびインストルメントパネル
JP5499460B2 (ja) ダクト及び車両構造体
WO1998054693A1 (fr) Attenuateur acoustique
JPH09228506A (ja) 吸音体
JP4258288B2 (ja) 吸音構造体
Nguyen et al. Perfect absorption in duct by coupling Helmholtz resonators
Gorain et al. Broadband low-frequency noise reduction using Helmholtz resonator-based metamaterial
KR100765842B1 (ko) 흡차음 기능을 갖는 대쉬패널
Peng et al. Helmholtz Resonator With Sonic Black Hole Neck.
JPH10282965A (ja) 吸音装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006733033

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

WWP Wipo information: published in national office

Ref document number: 2006733033

Country of ref document: EP