华东交通大学学报2017，Vol.34Issue(3)：27-33,52,8.
基于有限-无限元法的CRTSⅢ板式无砟轨道系统动力参数敏感度分析
Sensitivity Analysis of Dynamic Parameters for CRTS Ⅲ Slab Ballastless Track System Based on Finite-infinite Element Method
李伟1
作者信息
- 1. 中铁第一勘察设计院集团有限公司,陕西 西安 710043
- 折叠
摘要
Abstract
The CRTS Ⅲ slab ballastless track is China's self-brand ballastless track with independent intellectu-al property rights. Focusing on the dynamic parameter determination and optimization problem of CRTS III slab ballastless track system and based on the structure characteristics of CRTS Ⅲ slab ballastless track system, this study established a vertical vibration analytical model for CRTS Ⅲ slab ballastless vehicle-track coupling system by applying vehicle-track coupled dynamics theory,time-domain dynamic finite element method and the infinite element method to eliminate boundary effect. Then the MATLAB program was compiled and the sensitivity of structural parameters to the dynamic response of vehicle-track system was analyzed by single factor sensitivity analysis method,which may provide theoretical support for the determination and optimization of dynamic pa-rameters of CRTS Ⅲ type ballastless track.关键词
高速铁路/无砟轨道/耦合动力学/有限元/无限元Key words
high-speed railway/ballastless track/coupled dynamics/finite element/infinite element分类
交通工程引用本文复制引用
李伟..基于有限-无限元法的CRTSⅢ板式无砟轨道系统动力参数敏感度分析[J].华东交通大学学报,2017,34(3):27-33,52,8.
