Moving internal node element method for dynamic analysis of beam structure under moving vehicle
學年 110
學期 1
出版（發表）日期 2021-10-27
作品名稱 Moving internal node element method for dynamic analysis of beam structure under moving vehicle
作品名稱（其他語言） 英
著者 D.S. Yang; C.M. Wang; J.D. Yau
單位
出版者
著錄名稱、卷期、頁數 Journal of Sound and Vibration 511, 116348
摘要 This paper presents a new Moving Internal Node Element (MINE) method for the dynamic analysis of bridges/beam structure under a moving load/vehicle. By introducing a moving internal node within the standard beam element, the resulting MINE method eliminates the need for interpolation for the dynamic responses at the contact point between the moving load/vehicle and the beam structure. The governing equation of the moving internal node element is derived from the resulting bi-element with variable lengths but yet keeping the total length of the bi-element a constant. With this bi-element, the moving load/vehicle can be tracked easily as it is coincident with the moving internal node. This allows the reduction of the number of elements when compared to the conventional FEM needed to accurately predict the dynamic responses (e.g., displacement, velocity, and acceleration) of the moving load/vehicle (including at the contact point). Accuracy and computational efficiency are enhanced due to the smaller number of elements needed in the MINE method. The illustrative moving load/vehicle problems solved herein demonstrated the accuracy of the MINE method as well as its versatility and easy handling of any vehicle model.
關鍵字 Moving load/vehicle;Dynamic response;Moving internal node;Beam structure;Finite element method;Vehicle-bridge interaction
語言 en
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版
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