The experimental study on low frequency sound transmission characteristics of the acoustic black hole

被引：9
|
作者：
Liang, Xiao [1 ]
Zhou, Zhuo [2 ,3 ]
Wu, Jiu Hui [2 ,3 ]
机构：
[1] Xiangtan Univ, Sch Mech Engn, Xiangtan 411105, Hunan, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Shanxi, Peoples R China
[3] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Shanxi, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2019年 / 33卷 / 36期
基金：
美国国家科学基金会;
关键词：
Acoustic black hole; transmission characteristics; experimental study; acoustic energy focusing; DAMPING FLEXURAL VIBRATIONS; WAVES; PROFILE; PLATES;
D O I：
10.1142/S021798491950458X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The acoustic black hole has good sound insulation performance in low frequency range. The transmission and insulation characteristics of acoustic black hole is investigated by experiments. First, we study the transmission and insulation characteristics of the acoustic black hole by numerical simulation. Second, we studied the sound transmission characteristic of multi-level acoustic black hole. Finally, the sound transmission and insulation characteristics of the acoustic black hole are studied by experiments. The influence of the acoustic black hole tip's diameter on sound insulation coefficient is studied. The sound transmission characteristics of the first, two and three level acoustic black holes are also studied by experiments. Our numerical results show that low frequency acoustic energy can be effectively focused at the tip of the acoustic black hole, and can be effectively insulated by the acoustic black hole. Our numerical results are verified by the experimental results. Our study can provide a feasible method for controlling the low frequency noise.
引用
收藏
页数：17
相关论文
共 50 条
  • [41] Research on Vibration Absorption and Isolation Characteristics of Periodic Acoustic Black Hole Beam Resonators and their Enhancement
    Bao, Yue
    Liu, Xiandong
    Yao, Zhengcheng
    Shan, Yingchun
    He, Tian
    INTERNATIONAL JOURNAL OF APPLIED MECHANICS, 2023, 15 (01)
  • [42] Quantitative analysis of low frequency acoustic characteristics for reverse horn by bottleneck effect analogy method
    Liang, Xiao
    Wu, Jiu Hui
    Zhou, Zhuo
    Chen, Zhe
    MODERN PHYSICS LETTERS B, 2019, 33 (16):
  • [43] Low-frequency enhancement of acoustic black holes via negative stiffness
    Chen, Xu
    Zhao, Jinglei
    Deng, Jie
    Jing, Yan
    Pu, Huayan
    Luo, Jun
    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2023, 241
  • [44] A frequency domain method for vibration fatigue analysis of acoustic black hole structure
    Du, Weiqi
    Li, Shuxin
    Luo, Yuanxin
    INTERNATIONAL JOURNAL OF FATIGUE, 2023, 172
  • [45] Study on broadband vibration reduction characteristics and optimal design of the acoustic black hole plate with damping oscillators
    Chuanmeng Yang
    Hongtao Yu
    Tiangui Ye
    Scientific Reports, 15 (1)
  • [46] STUDY ON ACOUSTIC BLACK HOLE EFFECT OF ACOUSTIC EMISSION SIGNALS IN PINUS SYLVESTRIS VAR. MONGOLICA LITV
    Mao, Feilong
    Fang, Saiyin
    Li, Ming
    Qin, Gezhou
    Zhao, Yue
    Xu, Ning
    WOOD RESEARCH, 2023, 68 (04) : 743 - 757
  • [47] Influence of Acoustic Black Hole Array Embedded in a Plate on Its Energy Propagation and Sound Radiation
    Liang, Haoming
    Liu, Xiandong
    Yuan, Jiakai
    Bao, Yue
    Shan, Yingchun
    He, Tian
    APPLIED SCIENCES-BASEL, 2022, 12 (03):
  • [48] Improvement of dynamic foam stability with low-frequency acoustic sound
    Ng, Chun Yong
    Yang, Bingyu
    Park, Hangil
    Wang, Liguang
    MINERALS ENGINEERING, 2022, 184
  • [49] Numerical and experimental evidence of topological interface state in a periodic acoustic black hole
    Lyu, Xiaofei
    Li, Hongzhu
    Ma, Zhisai
    Ding, Qian
    Yang, Tianzhi
    Chen, Liqun
    Zur, Krzysztof Kamil
    JOURNAL OF SOUND AND VIBRATION, 2021, 514
  • [50] Broadband fractal acoustic metamaterials for low-frequency sound attenuation
    Song, Gang Yong
    Cheng, Qiang
    Huang, Bei
    Dong, Hui Yuan
    Cui, Tie Jun
    APPLIED PHYSICS LETTERS, 2016, 109 (13)
12345