南京大学学报(自然科学版) ›› 2023, Vol. 59 ›› Issue (6): 1069–1076.doi: 10.13232/j.cnki.jnju.2023.06.016

• • 上一篇    

附加薄膜⁃质量块谐振器的Herschel⁃Quincke管及基于该结构的隔声帘的研究

张轶, 范理()   

  1. 近代声学教育部重点实验室，南京大学声学研究所，南京，210093
  • 收稿日期:2023-10-09 出版日期:2023-11-30 发布日期:2023-12-06
  • 通讯作者: 范理 E-mail:fanli@nju.edu.cn
  • 基金资助:
    国家重点研发计划(2020YFA0211400);国家自然科学基金(12274218)

Research on a Herschel⁃Quincke pipe with membrane⁃mass resonators attached and a sound insulation curtain based on the structure

Yi Zhang, Li Fan()   

  1. Key Laboratory Modern Acoustics，Ministry of Education，Institute of Acoustic of Nanjing University，Nanjing，210093，China
  • Received:2023-10-09 Online:2023-11-30 Published:2023-12-06
  • Contact: Li Fan E-mail:fanli@nju.edu.cn

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摘要：

声学超材料在声音和振动的消除领域具有很好的应用前景.由于薄膜材料具有轻质且可以实现低频隔声的特点，薄膜型声学超材料受到广泛的关注.提出一种附加薄膜?质量块谐振器的Herschel?Quincke （HQ）管，通过理论分析及有限元仿真和实验的方法验证了该结构在HQ管道和薄膜?质量块谐振器耦合作用下可以实现低频多带的消声性能.此外，还设计了一种前、后附加薄膜?质量块谐振器的方形盒子单元结构，并基于该结构提出了一种隔声帘结构.隔声帘结构为多个单元组成的二维阵列结构，每个单元由前、后附加薄膜?质量块谐振器的长方体盒子构成.通过有限元模拟验证了该结构具有较好的低频宽带的自由场隔声性能.

关键词: Herschel?Quincke管, 薄膜型声学超材料, 管道消声, 隔声帘

Abstract:

Acoustic metamaterials exhibit great potentials in insulation for sound and vibration，where membrane?based acoustic metamaterials are given high consideration for small masses and sound insulation ability at low frequencies. Here，a membrane?mass attached Herschel?Quincke pipe (MAHQP) is presented. Theoretical analysis，numerical simulations and experiments show that low?frequency and multiple?band sound insulation could be achieved through using the MAHQP due to the coupling between Herschel?Quincke pipe and the membrane?mass resonator. Additionally，a rectangular box is designed，in which the front and rear faces are created using membrane?mass resonators. Furthermore，a sound insulation curtain is designed on the basis of a two?dimensional array of the rectangular box. The sound insulation of the curtain is studied by simulations，which demonstrates that low?frequency，multiple?band sound insulation can be obtained in a free acoustic field.

Key words: Herschel?Quincke pipe, membrane?type acoustic metamaterials, sound insulation in a pipe, sound insulation curtains

中图分类号: 

  • O429

图1

附加薄膜?质量块谐振系统的HQ管道结构示意图"

表1

传统HQ管道和附加薄膜HQ管道理论计算共振频率对比"

共振频率一二三四五
传统HQ管350 Hz650 Hz770 Hz
附加薄膜HQ管184 Hz395 Hz535 Hz735 Hz780 Hz

图2

（a）不同类型HQ管道传输损失对比；（b）薄膜?质量谐振器的振动模式图(b) mode shapes of the membrane?mass resonator"

图3

（a）质量块不同直径时传输损失对比；（b）质量块不同厚度时传输损失对比(b) comparison of transmission loss between differernt thicknesses of the masses"

图4

（a）实验系统示意图；（b）附加质量薄膜实验图；（c）模拟结果和实验结果对比(c) comparison of transmission loss between simulation and experimental results"

图5

（a）实验系统示意图；（b）附加薄膜HQ管道系统示意图；（c）等效HQ管类比结果；（d）薄膜附加质量块和无质量块模拟结果对比；（e）薄膜?质量谐振器的振动模式图"

图6

（a）帘结构示意图；（b）帘附加质量块和无质量块模拟结果对比"

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