淡江大學機構典藏:Item 987654321/116906
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    题名: Spectral analysis of train-rail-bridge coupling system considering frequency-dependent stiffness of rail fastening systems
    作者: Linya Liu;Jialiang Qin;Quanmin Liu;Jong-Dar Yau;Rui Song
    日期: 2019-04
    上传时间: 2019-07-01 12:10:22 (UTC+8)
    出版者: 台灣海洋大學
    摘要: A rubber rail-pad is typically inserted between the rail and the sleeper to attenuate wheel/rail vibrations for conventional train-rail-bridge (TRB) system. For mathematical modeling, a rail-fastener with rubber pad is simplified as a spring-dashpot unit, whose spring stiffness is related to the exciting frequency of external loads. To exhibit such characteristics of rail-pads on TRB dynamics, based on dynamic flexibility method, two computational models of constant/frequency-dependent stiffness (FDS) are considered for comparison. Numerical studies reveal that the FDS model provides a strengthening benefit for the wheel-rail vibration, from which the shifted dominant frequencies in spectral response are observed.
    關聯: Journal of Marine Science and Technology 27(2), p.114-122
    DOI: 10.6119/JMST.201904_27(2).0004
    显示于类别:[建築學系暨研究所] 期刊論文

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