教師資料查詢 | 類別: 期刊論文 | 教師: 姚忠達 Jong-dar Yau (瀏覽個人網頁)

標題:A Quasi-Vehicle/Bridge Interaction Model for High Speed Railways
學年103
學期2
出版(發表)日期2015/04/01
作品名稱A Quasi-Vehicle/Bridge Interaction Model for High Speed Railways
作品名稱(其他語言)
著者J.-D. Yau; L. Frýba
單位淡江大學建築學系
出版者Cambridge: Cambridge University Press
著錄名稱、卷期、頁數Journal of Mechanics 31(2), pp.217-225
摘要Vehicle response is served as a reference to evaluate riding comfort of passengers and running safety of moving carriages for high speed trains. In analyzing the vehicle-bridge interaction (VBI) problems, two sets of coupled equations of motion for running vehicles and bridge need to be solved and the VBI system matrices must be updated and factorized at each time step in a time-history analysis. This paper proposed a quasi-VBI model to abridge the complicated computational process, in which the bridge is subjected to only moving static forces of the train loadings, and the moving vehicle over it is excited by the corresponding feedback bridge response. To examine the interacting degree of the vehicle with the bridge, a coupling evaluation index (CEI) is defined as a quantitative assessment of the VBI system. The numerical parametric studies reveal that (1) the mass ratio of vehicle to bridge is the most sensitive parameter affecting the bridge response; (2) increasing bridge damping can reduce the coupling degree of the VBI system at high speeds; (3) the present quasi-VBI model is an efficient and simple tool to predict the vehicle's response with enough accuracy based on engineering approximation.
關鍵字High speed train;Quasi-VBI model;Resonance;Vehicle-bridge interaction;Vibration
語言英文
ISSN1811-8216
期刊性質國外
收錄於SCI;
產學合作
通訊作者Yau, J.-D.
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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