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    Rigid-Elastic Combined Metamaterial Beam With Tunable Band Gaps for Broadband Vibration Suppression

    Source: Journal of Vibration and Acoustics:;2024:;volume( 146 ):;issue: 002::page 21004-1
    Author:
    Zhang, Jiazhen
    ,
    Peng, Xuzhang
    ,
    Yu, Dewen
    ,
    Hu, Guobiao
    ,
    Yang, Yaowen
    DOI: 10.1115/1.4065751
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Extensive research efforts have been dedicated to exploring the application of metamaterial beams for vibration suppression. However, most existing designs primarily focused on utilizing the translational motion of local resonators to create band gaps. To address this limitation of employing solo motion to induce a relatively narrow band gap, this study proposes a novel design: a rigid-elastic combined metamaterial beam utilizing both translational and rotational motions of local resonators. Theoretical framework development involves extending the transfer matrix method to incorporate rigid bodies, with analytical results validated through finite element simulations and experimental data. Compared to conventional metamaterial beams, the proposed design exhibits an additional wide band gap in the low-frequency region that can be utilized for broadband vibration suppression. A parametric study elucidates the influences of geometric parameters on band gap formation, followed by an exploration of the tunability of the proposed meta-beam through a graded scheme and optimization strategy. In particular, a multiple-objective optimization approach is employed to enlarge the vibration suppression region and enhance vibration suppression ability. The optimized meta-beam demonstrates a remarkable 45% wider dominant suppression region and a 14% lower average transmittance compared to a uniform model.
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      Rigid-Elastic Combined Metamaterial Beam With Tunable Band Gaps for Broadband Vibration Suppression

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4302716
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    contributor authorZhang, Jiazhen
    contributor authorPeng, Xuzhang
    contributor authorYu, Dewen
    contributor authorHu, Guobiao
    contributor authorYang, Yaowen
    date accessioned2024-12-24T18:46:18Z
    date available2024-12-24T18:46:18Z
    date copyright7/30/2024 12:00:00 AM
    date issued2024
    identifier issn1048-9002
    identifier othervib_146_2_021004.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302716
    description abstractExtensive research efforts have been dedicated to exploring the application of metamaterial beams for vibration suppression. However, most existing designs primarily focused on utilizing the translational motion of local resonators to create band gaps. To address this limitation of employing solo motion to induce a relatively narrow band gap, this study proposes a novel design: a rigid-elastic combined metamaterial beam utilizing both translational and rotational motions of local resonators. Theoretical framework development involves extending the transfer matrix method to incorporate rigid bodies, with analytical results validated through finite element simulations and experimental data. Compared to conventional metamaterial beams, the proposed design exhibits an additional wide band gap in the low-frequency region that can be utilized for broadband vibration suppression. A parametric study elucidates the influences of geometric parameters on band gap formation, followed by an exploration of the tunability of the proposed meta-beam through a graded scheme and optimization strategy. In particular, a multiple-objective optimization approach is employed to enlarge the vibration suppression region and enhance vibration suppression ability. The optimized meta-beam demonstrates a remarkable 45% wider dominant suppression region and a 14% lower average transmittance compared to a uniform model.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleRigid-Elastic Combined Metamaterial Beam With Tunable Band Gaps for Broadband Vibration Suppression
    typeJournal Paper
    journal volume146
    journal issue2
    journal titleJournal of Vibration and Acoustics
    identifier doi10.1115/1.4065751
    journal fristpage21004-1
    journal lastpage21004-12
    page12
    treeJournal of Vibration and Acoustics:;2024:;volume( 146 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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