Počet záznamů: 1

Response of an arch-beam carrying multiple moving oscillators

  1. 1.
    0364227 - UTAM-F 2012 RIV BE eng C - Konferenční příspěvek (zahraniční konf.)
    Frýba, Ladislav - Yau, Y. D.
    Response of an arch-beam carrying multiple moving oscillators.
    Proceedings of the 8th International Conference on Structural Dynamics, EURODYN2011. Leuven: Katolieke Universiteit Leuven, 2011 - (Roeck, G.; Degrande, G.; Lombaert, G.; Műller, G.), s. 1213-1216. ISBN 9789076019314.
    [EURODYN2011 -International Conference on Structural Dynamics /8./. Leuven (BE), 04.06.2011-06.06.2011]
    Grant ostatní: National Science Council of Taiwan(TW) NSC 99-2221-E-032-020-MY3; GAČR(CZ) GA103/08/1340
    Výzkumný záměr: CEZ:AV0Z20710524
    Klíčová slova: arch bridge * aspect ratio * high-speed train * resonance
    Kód oboru RIV: JM - Inženýrské stavitelství

    This paper is focused on the interaction response of a two-hinged arch bridge carrying multiple moving oscillators. The arch bridge is modeled as a parabolic arch with constant sectional properties along the horizontal axis of span, and the multiple oscillators moving over it as a sequence of identical spring mass units with constant intervals. To investigate such a dynamic problem, a vehicle-bridge model is employed to investigate the interaction dynamics of the arch-beam and the moving oscillator units. Meanwhile, an incremental-iterative procedure is presented for the dynamic analysis of vehicle-bridge system. Considering various aspect ratios of the rise to span for arch-beams, the interaction response of the running oscillators over the arch-beams is investigated, especially for the resonant case as the passage frequency of the traveling oscillators coincides with the fundamental frequency of the arch beams.
    Trvalý link: http://hdl.handle.net/11104/0199761