MY205725A - Low-frequency coupling sound-absorbing structure - Google Patents

Low-frequency coupling sound-absorbing structure

Info

Publication number
MY205725A
MY205725A MYPI2020002750A MYPI2020002750A MY205725A MY 205725 A MY205725 A MY 205725A MY PI2020002750 A MYPI2020002750 A MY PI2020002750A MY PI2020002750 A MYPI2020002750 A MY PI2020002750A MY 205725 A MY205725 A MY 205725A
Authority
MY
Malaysia
Prior art keywords
sound
low
chamber
absorbing structure
plate
Prior art date
Application number
MYPI2020002750A
Inventor
Dengke Li
Zhongcheng Jiang
Biao Ye
Xiaobo Liu
Xianfeng Wang
Jixiong Jiang
Bingbin Guo
Dafa Jiang
Wang Li
Jingjing Chen
Wenhui Yuan
Huadong Duan
Li Zhou
Jun Zhang
Bo Zhang
Shiwen Chen
Guoyun Liu
Zhu Shi
Original Assignee
Crrc Zhuzhou Locomotive Co Ltd
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 Crrc Zhuzhou Locomotive Co Ltd filed Critical Crrc Zhuzhou Locomotive Co Ltd
Publication of MY205725A publication Critical patent/MY205725A/en

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
    • 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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

A low-frequency coupling sound-absorbing structure includes a peripheral chamber (1), a resonance chamber (2) arranged inside the peripheral chamber (1), and an extension tube structure (3) arranged inside the resonance chamber (2), wherein one end of the extension tube structure (3) is connected to a chamber wall of the resonance chamber (2) through a corresponding through hole; and the peripheral chamber (1) includes the micro-perforated plate (11), the back plate (12), the first side plate (13), and the second side plate (14), wherein the microperforated plate (11) is provided with multiple micro-hole structures (111), the micro perforated plate (11) is opposite to the back plate (12), and the first side plate (13) is opposite to the second side plate (14). The low-frequency coupling sound-absorbing structure in this application can increase the acoustic impedance of the sound-absorbing structure by providing the resonance chamber (2) with the extension tube structure (3) in the peripheral chamber (1) with the micro-hole structure (111), which improves the sound-absorption coefficient, widens the sound-absorption frequency band, and shifts the sound absorption frequency band to the low frequency, thereby realizing low-frequency sound absorption and improving the product performance. Figure 1
MYPI2020002750A 2018-11-15 2019-10-29 Low-frequency coupling sound-absorbing structure MY205725A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811359437.9A CN109147750A (en) 2018-11-15 2018-11-15 A kind of low frequency coupling sound absorption structure
PCT/CN2019/113918 WO2020098477A1 (en) 2018-11-15 2019-10-29 Low-frequency coupling sound absorbing structure

Publications (1)

Publication Number Publication Date
MY205725A true MY205725A (en) 2024-11-07

Family

ID=64805809

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2020002750A MY205725A (en) 2018-11-15 2019-10-29 Low-frequency coupling sound-absorbing structure

Country Status (4)

Country Link
EP (1) EP3706114B1 (en)
CN (1) CN109147750A (en)
MY (1) MY205725A (en)
WO (1) WO2020098477A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109147750A (en) * 2018-11-15 2019-01-04 中车株洲电力机车有限公司 A kind of low frequency coupling sound absorption structure
CN110085205B (en) * 2019-04-26 2022-10-25 江苏师范大学 Design method of micro-perforated plate sound absorber to maximize average sound absorption coefficient
CN110189736B (en) * 2019-05-09 2022-11-04 江苏师范大学 Design method of double-layer series micro-perforated plate structure for maximizing number of sampling points exceeding threshold value
US20200388265A1 (en) * 2019-06-10 2020-12-10 Toyota Motor Engineering & Manufacturing North America, Inc. Sound isolation device
CN110397505A (en) * 2019-07-11 2019-11-01 上海交通大学 An extended tubular perforated board honeycomb sandwich sound-absorbing structure
CN110517659B (en) * 2019-08-20 2022-07-12 西安交通大学 Multi-unit coupling type micro-perforated plate low-frequency broadband sound absorption structure and design method thereof
CN110763085A (en) * 2019-09-17 2020-02-07 南京航空航天大学 Micro-perforated orthogonally-arranged rectangular tube sandwich sound absorption and energy absorption composite structure
CN110626364B (en) * 2019-09-24 2021-10-22 中车株洲电力机车有限公司 Sound insulation structure of cooling system of railway vehicle and manufacturing method of sound insulation structure
CN111105774A (en) * 2019-10-29 2020-05-05 同济大学 Helmholtz resonator and low-frequency broadband sound absorption and noise reduction structure based on same
CN111270621B (en) * 2019-12-04 2021-09-28 华东交通大学 Novel two-dimensional phononic crystal sound barrier structure
CN111926933B (en) * 2019-12-24 2021-06-15 南京林业大学 Frequency-adjustable sound absorption plate based on Helmholtz resonator
CN111256356A (en) * 2020-03-27 2020-06-09 江苏建筑职业技术学院 Spherical array impedance composite noise elimination structure
CN111739500B (en) * 2020-06-01 2023-07-25 南京航空航天大学 Underwater broadband sound-absorbing structure of perforated sandwich panels modified with damping layer
CN111816151B (en) * 2020-08-05 2024-11-08 南昌航空大学 A double-layer honeycomb-micro-perforated structure with adjustable back cavity height and design method thereof
CN112185326B (en) * 2020-08-25 2024-05-24 西安交通大学 A double-helix coupled underwater sound-absorbing metasurface structure
CN112382264B (en) * 2020-10-29 2024-10-18 上海超颖声学科技有限公司 Broadband sound absorption structure
CN112509544B (en) * 2020-11-06 2024-12-06 国能水务环保有限公司 A lightweight metal low-frequency noise reduction structure
CN112487562B (en) * 2020-12-14 2024-05-07 西安交通大学 A broadband sound absorption structure design method based on quadratic residual sequence
CN114791114B (en) * 2021-01-26 2025-07-18 佛山市顺德区美的洗涤电器制造有限公司 Noise reduction assembly and smoke exhaust ventilator
CN113089516B (en) * 2021-05-08 2024-09-10 中海环境科技(上海）股份有限公司 Noise reduction structure at top end of sound barrier based on diffuser coupling microperforated panel
EP4174843B1 (en) * 2021-08-31 2024-07-31 Dalian University of Technology Low-pass acoustic filter bank broadband sound absorber
CN113948056A (en) * 2021-09-28 2022-01-18 中国汽车技术研究中心有限公司 Automobile-used laminated sheet sound absorption structure and optimal design model thereof
CN115881070A (en) * 2021-09-30 2023-03-31 北京理工大学 Low-frequency sound absorption structure and ventilation and heat dissipation equipment
CN114139411B (en) * 2021-10-19 2024-04-02 西安交通大学 Method for enhancing low-frequency broadband sound absorption performance through soft material
CN114550682B (en) * 2022-02-22 2024-12-27 华中科技大学 A bidirectional low-frequency sound-absorbing metamaterial imitating bamboo shoot snail and its additive manufacturing method
CN114855660B (en) * 2022-06-01 2024-10-15 重庆交通大学 Phonon crystal sound absorber, sound barrier and using and installing method
CN115292894B (en) * 2022-07-04 2026-03-24 安徽工业大学 A method for calculating the frequency of sound production in a neck cavity
CN116741126A (en) * 2023-01-11 2023-09-12 中国电力科学研究院有限公司 Optimization method and device for low-frequency sound absorption coefficient of micro-perforated panels
CN117711364B (en) * 2023-12-12 2025-10-17 中车株洲电力机车有限公司 Multistage low-frequency sound absorbing device and parameter value taking method thereof
CN118397994B (en) * 2024-06-27 2024-10-22 苏州国融前沿技术有限公司 Multi-mechanism coupling full-band acoustic metamaterial sound absorption module and sound elimination chamber thereof
CN120766840B (en) * 2025-09-03 2025-12-23 浙江大学 Underwater sound absorption coating design method based on coupling of cavity resonance and local resonance
CN121237068B (en) * 2025-11-28 2026-04-14 青岛理工大学 Multichannel acoustic black hole sound absorption structure and noise elimination device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734234A (en) * 1971-11-08 1973-05-22 Lockheed Aircraft Corp Sound absorption structure
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
GB1470036A (en) * 1975-01-17 1977-04-14 Lockheed Aircraft Corp Dual range sound absorber
GB2005384A (en) * 1977-10-04 1979-04-19 Rolls Royce Multi-layer acoustic lining
US4600078A (en) * 1983-12-12 1986-07-15 Lockheed Corporation Sound barrier
JP2555832B2 (en) * 1992-05-01 1996-11-20 日東紡績株式会社 Sound absorber
US6069840A (en) * 1999-02-18 2000-05-30 The United States Of America As Represented By The Secretary Of The Air Force Mechanically coupled helmholtz resonators for broadband acoustic attenuation
JP2008233793A (en) * 2007-03-23 2008-10-02 Yamaha Corp Perforated plate sound absorbing body and method for manufacturing the same
CN101645263B (en) * 2009-02-27 2011-05-11 中国科学院声学研究所 Composite resonance sound absorption device of tube bundle perforated plate
CN201622837U (en) * 2010-01-08 2010-11-03 中国科学院声学研究所 A multi-cavity composite sound-absorbing device
CN101727894B (en) * 2010-01-08 2012-05-23 中国科学院声学研究所 Composite sound absorbing device with built-in resonant cavity
DE102011120979A1 (en) * 2011-12-13 2013-06-13 Rolls-Royce Deutschland Ltd & Co Kg Acoustic absorber
JP2013250501A (en) * 2012-06-04 2013-12-12 Three M Innovative Properties Co Sound absorbing board
JP6092658B2 (en) * 2013-02-27 2017-03-08 大成建設株式会社 Resonant sound absorber
CN103700366B (en) * 2013-12-24 2016-06-15 江苏大学 The broad band sound absorption structure that the mechanical impedance of combinative resonator is combined with microperforated panel
CN107437411B (en) * 2016-05-27 2023-09-15 北京市劳动保护科学研究所 Low-frequency composite sound absorption device
CN107514066B (en) * 2016-06-16 2019-05-17 中国科学院声学研究所 A kind of lightweight sound insulation room device based on extension tube resonant structure
CN108399911B (en) * 2017-02-06 2024-03-22 北京市劳动保护科学研究所 Ventilating, radiating and sound insulating structure of low-frequency broadband
CN107610688B (en) * 2017-09-05 2024-04-26 同济大学 Cavity tube composite sound insulation structure
CN109147750A (en) * 2018-11-15 2019-01-04 中车株洲电力机车有限公司 A kind of low frequency coupling sound absorption structure

Also Published As

Publication number Publication date
CN109147750A (en) 2019-01-04
WO2020098477A1 (en) 2020-05-22
EP3706114A4 (en) 2021-07-28
EP3706114B1 (en) 2023-05-31
EP3706114A1 (en) 2020-09-09

Similar Documents

Publication Publication Date Title
MY205725A (en) Low-frequency coupling sound-absorbing structure
US10299030B2 (en) Speaker module with sealed cavity and a communicating hole
CN103700366B (en) The broad band sound absorption structure that the mechanical impedance of combinative resonator is combined with microperforated panel
CN204303339U (en) A kind of compound sound-absorption structural
RU2006143331A (en) TECHNOLOGY OF THE INTEGRATED ACOUSTIC TRANSMISSION LINE WITH A CLOSED CIRCUIT
EP2159787A3 (en) Acoustic structure and acoustic room
CN106131744B (en) An ultra-wideband underwater acoustic transducer
CN113539223B (en) Helmholtz sound absorption device
CN106303771A (en) Omnidirectional phase reversal sound box structure
CN105788587A (en) Porous composite sound absorption structure
CN103075605A (en) Double-cavity resonant type muffler
RU2010131197A (en) DEVICES AND METHODS FOR IMPROVING THE FREQUENCY OUTPUT OF A PORTABLE AUDIO DEVICE
CN113793586A (en) Low-frequency ultra-wideband acoustic black hole acoustic material structure
CN107401225A (en) The sound absorption and insulation structure that a kind of flexible particle is piled up
CN205050553U (en) Resonance type silencer
CN205194322U (en) Broadband microperforated panel acoustic absorber based on cycle temper back of body chamber
CN210298040U (en) Sound production equipment
CN106652989B (en) Mechanical impedance plate composite porous elastic pipe sound absorption structure
CN103353042B (en) Pressure adaptive broad band low frequency elasticity resonance muffler device
CN105065337A (en) Sound absorption structure of air channel
CN204303341U (en) A kind of porous compound sound-absorption structural
CN206481455U (en) A kind of loudspeaker side goes out acoustic form, loudspeaker module and mobile terminal
UA89355U (en) Acoustic system
CN204634015U (en) speaker module
CN205545864U (en) speaker