基于Matlab及LS-DYNA的断裂导线冲击铁路棚洞仿真平台  

Simulation Analysis of Impact of Broken Transmission Conductor on the Railway Shield Tunnel Based on Matlab and LS-DYNA

作　　者：秦鹏霄 胡先茂[1] 阎顺[1] 沈磊[1] 石建峰[1] QIN Pengxiao;HU Xianmao;YAN Shun;SHEN Lei;SHI Jianfeng(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《计算机与数字工程》2021年第6期1262-1268,共7页Computer & Digital Engineering

摘　　要：为了实现断裂输电导线对拟建铁路棚洞的冲击仿真,论文基于Matlab与LS-DYNA软件开发了一种计算机仿真平台。该计算机仿真平台通过Matlab特定程序指令实现输电导线特征参数的修改,并将特征参数送入LS-DYNA求解器中进行参数化建模仿真,实现了Matlab与LS-DYNA之间的数据传递及两者的嵌套运行。最后以商合杭铁路淮盱线铁路段1000kV输电导线为例,分析了输电导线断裂对拟建棚洞的冲击作用,得到了输电导线对拟建棚洞冲击作用的时程曲线及碰撞过程中的等效应力分布云图,有效地指导了拟建铁路棚洞结构的设计。In order to simulate the impact of the broken transmission conductor on the railway shield tunnel,this paper devel⁃ops a computer simulation platform based on Matlab and LS-DYNA software.The computer simulation platform can modify the char⁃acteristic parameters of the transmission conductor through Matlab specific program instructions,and send the characteristic param⁃eters into the LS-DYNA solver for parametric modeling and simulation,transmitting data between Matlab and LS-DYNA.Finally,the transmission conductor of the Huaixu railway section of the Shanghehang railway is taken as an example,the impact of the bro⁃ken transmission conductor on the railway shield tunnel is analyzed,and the time-history curve of the impact of the transmission conductor on the railway shield tunnel and the Von Mises stress distribution are obtained,which effectively guides the design of the railway shield tunnel.

关 键 词：输电导线 铁路棚洞 MATLAB LS-DYNA 计算机仿真 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]