An Efficient Numerical Model for the Simulation of Vibrations Induced by Railway Traffic in Tunnels
In the present paper a numerical procedure is presented in order to allow an efficient simulation of the vibrations induced by traffic from the source to the receiver (building).The nu merical model is divided into three distinct parts, comprising the simulation of rolling stock, the simulation of the tunnel-ground system and the simulation of the building.The solution is obtained by a compliance formulation between the three sub-systems, developed in the frequency domain.Regarding the simulation of the tunnel-ground system, which deals with unbounded domain prob lem, an efficient solution is developed using a 2.5D technique based on the finite elements method, and adopting perfect matched layers (PMLs) for the treatment of the boundaries due to the trunca tion of the finite elements mesh.On the other hand, the rolling stock is modeled using a multi-body approach, being the building simulated by a traditional 3D finite element approach.
traffic in tunnel train-track interaction track-tunnel-ground-structure simulation dynamic response
P.Lopes P.A.Costa R.Cal(c)ada A.S.Cardoso
Polytechnic Institute of Porto-ISEP, Porto, Portugal Faculty of Engineering of the University of Porto, Porto, Portugal
国际会议
第六届国际环境振动学术研讨会(6th International Symposium on Environmental Vibration)(ISEV2013)
上海
英文
105-118
2013-11-08（万方平台首次上网日期，不代表论文的发表时间）