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Sound absorption behaviors of metamaterials with periodic multi-resonator and voids in water

机译：周期性多谐振器和水中空隙的超材料吸收行为

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摘要

In this paper, a novel composite acoustic metamaterial comprising of periodic multi-resonator and voids is proposed, in which the periodic multi-resonator and periodic voids are embedded into the sound absorption layer and the sound insulation layer, respectively. The different arrangements for the two layers are designed, and the sound absorption behaviors of the proposed combinations immersed in water are researched using finite element method. In addition, the effects of different arrangements for the two layers, the multi-resonator in sound absorption layer and the void in sound insulation layer on sound absorption behavior of the combinations are also investigated. The numerical results show that the frequency band of sound absorption of the proposed combinations can be broadened effectively due to the coupled resonance generated by multi-resonator and voids. Moreover, the different arrangements for the two layers have significant impacts on sound absorption behaviors of the combinations. The results validate that the sound absorption in the low frequency band can be enhanced effectively by distributing sound absorption layer and sound insulation layer on both sides of steel plate. (C) 2020 Elsevier Ltd. All rights reserved.
机译：在本文中，提出了一种包括周期性多谐振器和空隙的新型复合声学超材料，其中周期性多谐振器和周期性空隙分别嵌入吸声层和隔音层中。设计了两层的不同布置，并采用有限元法研究浸入水中所浸入水中的拟议组合的声音吸收行为。另外，还研究了两层不同布置的影响，吸音层中的多谐振器和隔音层中的空隙中的音乐吸收行为上的空隙。数值结果表明，由于多谐振器和空隙产生的耦合谐振，可以有效地扩展所提出的组合的声音吸收的频带。此外，两层的不同布置对组合的声音吸收行为产生了显着影响。结果验证，通过在钢板两侧分配吸声层和隔音层，可以有效地提高低频带中的声音吸收。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Applied Acoustics》 |2020年第9期|107351.1-107351.9|共9页
  • 作者

    Jin Guoyong; Shi Kangkang; Ye Tiangui; Zhou Jialiang; Yin Yaowei;

  • 作者单位

    Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China;

    Harbin Engn Univ Coll Power & Energy Engn Harbin 150001 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sound absorption; Metamaterials; Multi-resonator; Coupled resonance;

    机译：吸音;超材料;多谐振器;耦合共振;

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