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    Tuning of Acoustic Bandgaps in Phononic Crystals With Helmholtz Resonators

    Source: Journal of Vibration and Acoustics:;2013:;volume( 135 ):;issue: 003::page 31015
    Author:
    Li, Jian
    ,
    Wang, Yue
    ,
    Zhang, Chuanzeng
    DOI: 10.1115/1.4023812
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In this paper, acoustic wave propagation in a twoor threedimensional phononic crystal consisting of Helmholtz resonators embedded in a fluid matrix is studied. The band structures are calculated to discuss the influence of the geometry topology of Helmholtz resonators on the bandgap characteristics. It is shown that a narrow bandgap will appear in the lower frequency range due to the resonance of the Helmholtz resonators. The width and position of this resonance bandgap can be tuned by adjusting the geometrical parameters of the Helmholtz resonator. The position of the resonance bandgap can be evaluated by the resonance frequency of the Helmholtz resonator. A decrease in the size of the opening generally results in a lower position and a smaller width of the bandgap. The system with one opening exhibits a wider bandgap in a lower position than the system with two openings.
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      Tuning of Acoustic Bandgaps in Phononic Crystals With Helmholtz Resonators

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    http://yetl.yabesh.ir/yetl1/handle/yetl/153591
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    contributor authorLi, Jian
    contributor authorWang, Yue
    contributor authorZhang, Chuanzeng
    date accessioned2017-05-09T01:04:11Z
    date available2017-05-09T01:04:11Z
    date issued2013
    identifier issn1048-9002
    identifier othervib_135_3_031015.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/153591
    description abstractIn this paper, acoustic wave propagation in a twoor threedimensional phononic crystal consisting of Helmholtz resonators embedded in a fluid matrix is studied. The band structures are calculated to discuss the influence of the geometry topology of Helmholtz resonators on the bandgap characteristics. It is shown that a narrow bandgap will appear in the lower frequency range due to the resonance of the Helmholtz resonators. The width and position of this resonance bandgap can be tuned by adjusting the geometrical parameters of the Helmholtz resonator. The position of the resonance bandgap can be evaluated by the resonance frequency of the Helmholtz resonator. A decrease in the size of the opening generally results in a lower position and a smaller width of the bandgap. The system with one opening exhibits a wider bandgap in a lower position than the system with two openings.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleTuning of Acoustic Bandgaps in Phononic Crystals With Helmholtz Resonators
    typeJournal Paper
    journal volume135
    journal issue3
    journal titleJournal of Vibration and Acoustics
    identifier doi10.1115/1.4023812
    journal fristpage31015
    journal lastpage31015
    identifier eissn1528-8927
    treeJournal of Vibration and Acoustics:;2013:;volume( 135 ):;issue: 003
    contenttypeFulltext
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