A frequency and velocity-dependent impedance method for prediction of rail/foundation dynamics

作     者：Reda Mezeh Marwan Sadek Fadi Hage Chehade Isam Shahrour Reda Mezeh;Marwan Sadek;Fadi Hage Chehade;Isam Shahrour

作者机构：Laboratory of Civil Engineering and GeoEnvironmentUniversity of LilleSciences and TechnologiesPolytech’LilleVilleneuve d’AscqHauts-de-France 59655France Doctoral School of Science and TechnologyLebanese UniversityBeirut 0000Lebanon 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2021年第20卷第1期

页      面：101-111页

核心收录：

学科分类：08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Université Lille 1 - Sciences et Technologies  USTL 

主　　题：moving loads rail vibrations rail/foundation interaction dynamic impedances genetic algorithm 

摘      要：This paper presents an efficient numerical tool for the prediction of railway dynamic response.A behavior calibration of the infinite Euler-Bernoulli beam resting on continuous viscoelastic foundation is *** laws of the discrete elements are determined for a rectilinear ballasted track.A three-dimensional model coupled with an adaptive meshing scheme is employed to calibrate the beam model impedances by finding the similarity between the output signals using the genetic *** model shows an important performance with significant reduction in computational *** study emphasizes the major impact of the excitation characteristics on the parameters of the discrete models.