铁道标准设计2017，Vol.61Issue(10)：28-32,5.DOI:10.13238/j.issn.1004-2954.2017.10.007
时速350/250 km共线高速铁路曲线半径动力特性研究
On Dynamic Characteristics of Curve Radius of Shared 350/250 km/h High-speed Railway
杨星光 1刘永孝1
作者信息
- 1. 兰州交通大学土木工程学院,兰州730070
- 折叠
摘要
Abstract
Line curve radius is one of the main technical standards of high-speed railway,and it is closely related to the comfort,safety and dynamic characteristics of wheel-rail.In this paper,based on the multi-body dynamics software um,a high-speed railway vehicle-line model is established,and the influence of the curve radius on the dynamic response of the train is studied.Research results show that with the increase of curve radius,the lateral acceleration,derailment coefficient,wheel load reduction rate and wear parameters tend to decrease,but more slowly where the curve radius is more than 7 500 m,and those indexes become stable with radius larger than 8 500 m.Therefore,8000m radius for shared 350/250 km/h railway is recommended for better comfort in terms of safety and 7 000 m in difficult circumstance.关键词
高速铁路/曲线半径/车线模型/评价指标Key words
High speed railway/Curve radius/Vehicle-line model/Evaluation index分类
交通工程引用本文复制引用
杨星光,刘永孝..时速350/250 km共线高速铁路曲线半径动力特性研究[J].铁道标准设计,2017,61(10):28-32,5.
