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Response of an arch-beam carrying multiple moving oscillators
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SYSNO ASEP 0364227 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Response of an arch-beam carrying multiple moving oscillators Author(s) Frýba, Ladislav (UTAM-F) SAI, RID, ORCID
Yau, Y. D. (TW)Source Title Proceedings of the 8th International Conference on Structural Dynamics, EURODYN2011. - Leuven : Katolieke Universiteit Leuven, 2011 / Roeck G. ; Degrande G. ; Lombaert G. ; Műller G. - ISBN 9789076019314 Pages s. 1213-1216 Number of pages 4 s. Action EURODYN2011 -International Conference on Structural Dynamics /8./ Event date 04.06.2011-06.06.2011 VEvent location Leuven Country BE - Belgium Event type WRD Language eng - English Country BE - Belgium Keywords arch bridge ; aspect ratio ; high-speed train ; resonance Subject RIV JM - Building Engineering CEZ AV0Z20710524 - UTAM-F (2005-2011) Annotation 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. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2012
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