Numerical Simulation of High-Speed Maglev Vehicle-Guideway-Tunnel-Soil System

被引：7
|
作者：
Wang, Jianwei [1 ]
Jin, Xianlong [1 ]
Cao, Yuan [1 ]
Du, Xinguang [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 201101, Peoples R China
来源：
INTERNATIONAL JOURNAL FOR COMPUTATIONAL METHODS IN ENGINEERING SCIENCE & MECHANICS | 2012年 / 13卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Numerical simulation; Maglev vehicle; Tunnel; Parallel computing; Contact nonlinearity; Supercomputer;
D O I：
10.1080/15502287.2011.654176
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In order to study the dynamic problem due to the highspeed EMS maglev vehicle travelling through a tunnel, this paper presents a large-scale 3D model of the maglev vehicle-guideway-tunnel- soil coupling system. The 3D finite element is used for modeling the guideway-tunnel-soil system, and the heterogeneous soil conditions, detailed geometry features of guideway and tunnel, and soil-tunnel interaction are all considered. The high-speed EMS maglev vehicle is modeled as rigid bodies and coupled to the guideway through the equivalent spring/damping magnetic force model. The initial stress of the guideway-tunnel-soil is also considered in the model by the stress reduction method. The computing is accomplished on a Dawning 5000A supercomputer using the finite-element code LS-DYNA 971 MPP. The dynamic factor of the guideway is estimated in comparison with the German design guideline. The result provides a comprehensive insight into the tunnel and guideway, as well as the ground vibration.
引用
收藏
页码：93 / 107
页数：15
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