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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/119948


    Title: Vibration reduction for interaction response of a maglev vehicle running on guideway girders
    Authors: Wang, Y.J.;Yau, J.D.;J, Shi S.
    Keywords: condensed VDA scheme;iterative method;maglev system;resonance;vibration reduction
    Date: 2020-10-25
    Issue Date: 2021-02-24 12:12:18 (UTC+8)
    Publisher: Techno-Press
    Abstract: As a vehicle moves on multiple equal-span beams at constant speed, the running vehicle would be subjected to
    repetitive excitations from the beam vibrations under it. Once the exciting frequency caused by the vibrating beams coincides
    with any of the vehicle’s frequencies, resonance would take place on the vehicle. A similar resonance phenomenon occurs on a
    beam subject to sequential moving loads with identical axle-intervals. To reduce both resonant phenomena of a vehicle moving
    on guideway girders, this study proposed an additional feedback controller based the condensed virtual dynamic absorber (C-
    VDA) scheme. This condensation scheme has the following advantages: (1) the feedback tuning gains required to adapt the
    control currents or voltages are directly obtained from the tuning forces of the VDA; (2) the condensed VDA scheme does not
    need additional DoFs of the absorber to control the vibration of the maglev-vehicle/guideway system. By decomposing the
    maglev vehicle-guideway coupling system into two sub-systems (the moving vehicle and the supporting girders), an
    incremental-iterative procedure associated with the Newmark method is presented to solve the two sets of sub-system equations.
    From the present studies, the proposed C-VDA scheme is a feasible approach to suppress the interaction response for a maglev
    vehicle in resonance moving on a series of guideway girders.
    Relation: Structural Engineering and Mechanics 76(2), p.163-173
    DOI: 10.12989/sem.2020.76.2.163
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Journal Article

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