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    Optimum Design of a New Tuned Inerter-Torsional-Mass-Damper Passive Vibration Control for Stochastically Motion-Excited Structures

    Source: Journal of Vibration and Acoustics:;2020:;volume( 142 ):;issue: 001::page 011015-1
    Author:
    Tai, Wei-Che
    DOI: 10.1115/1.4045264
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The inerter is referred to as a two-terminal device that provides inertial forces proportional to the relative accelerations between its two terminals. It has been widely applied in vibration control due to its mass amplification effect. In this paper, a new inerter-based damper is proposed to take advantage of the mass amplification effect, which consists of the classic rack-pinion inerter in conjunction with a torsional tuned mass damper. Unlike any other topologies of inerter-based dampers, the torsional mass damper is connected to the pinion of the inerter via a rotational spring and viscous damper. As a result, the weight of the torsional mass damper can be significantly reduced. The proposed damper is applied to single-degree-of-freedom primary structures and a two degrees-of-freedom structure, and the H2 optimization is conducted to obtain the optimum tuning ratio and damping ratio analytically. When comparing the proposed damper with its counterpart reported in the literature, the proposed damper achieves 20–70% improvement when their weights are identical.
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      Optimum Design of a New Tuned Inerter-Torsional-Mass-Damper Passive Vibration Control for Stochastically Motion-Excited Structures

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    contributor authorTai, Wei-Che
    date accessioned2022-02-04T22:53:17Z
    date available2022-02-04T22:53:17Z
    date copyright2/1/2020 12:00:00 AM
    date issued2020
    identifier issn1048-9002
    identifier othervib_142_1_011015.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4275637
    description abstractThe inerter is referred to as a two-terminal device that provides inertial forces proportional to the relative accelerations between its two terminals. It has been widely applied in vibration control due to its mass amplification effect. In this paper, a new inerter-based damper is proposed to take advantage of the mass amplification effect, which consists of the classic rack-pinion inerter in conjunction with a torsional tuned mass damper. Unlike any other topologies of inerter-based dampers, the torsional mass damper is connected to the pinion of the inerter via a rotational spring and viscous damper. As a result, the weight of the torsional mass damper can be significantly reduced. The proposed damper is applied to single-degree-of-freedom primary structures and a two degrees-of-freedom structure, and the H2 optimization is conducted to obtain the optimum tuning ratio and damping ratio analytically. When comparing the proposed damper with its counterpart reported in the literature, the proposed damper achieves 20–70% improvement when their weights are identical.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleOptimum Design of a New Tuned Inerter-Torsional-Mass-Damper Passive Vibration Control for Stochastically Motion-Excited Structures
    typeJournal Paper
    journal volume142
    journal issue1
    journal titleJournal of Vibration and Acoustics
    identifier doi10.1115/1.4045264
    journal fristpage011015-1
    journal lastpage011015-9
    page9
    treeJournal of Vibration and Acoustics:;2020:;volume( 142 ):;issue: 001
    contenttypeFulltext
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