Finite element analysis for train–track–bridge interaction system
Finite element analysis for train–track–bridge interaction system
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DOI：
10.1007/s00419-007-0122-4
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发表时间：
2007-03
影响因子：
2.8
通讯作者：
P. Lou
中科院分区：
文献类型：
--
作者：
P. Lou
本文采用有限元法对列车-轨道-桥梁相互作用系统进行了动力分析。在该相互作用系统中，列车中的每个四轮对车辆由具有10个自由度的质量-弹簧-阻尼器系统建模;轨道和桥面被建模为多个Bernoulli-Euler梁单元，而轨床的弹性和阻尼特性由连续弹簧和阻尼器表示。相互作用系统的运动方程以矩阵形式给出，其系数与时间有关。与现有文献的数值结果进行了比较，说明了所提出的方法的正确性。通过算例分析了两种车辆模型、两种桥梁模型和三种桥梁阻尼对列车、轨道和桥梁最大动力响应的影响。
This article deals with the dynamic analysis of train–track–bridge interaction system using the finite element method. In this interaction system, each four-wheelset vehicle in the train is modeled by a mass–spring–damper system with 10 degrees of freedom; the rails and the bridge decks are modeled as a number of Bernoulli–Euler beam elements, while the elasticity and damping properties of the rail bed are represented by continuous springs and dampers. The equation of motion for the interaction system is presented in matrix form with time-dependent coefficients. The correctness of the proposed procedure is illustrated by a comparison with the numerical result from the existing literature. Several numerical examples are chosen to investigate the effect of two types of vehicle models, two types of bridge models and three damping values of bridge on the maximum dynamic responses of train, track and bridges.