摘要
利用Mathieu方程,讨论弓网系统运动稳定运行的条件。结果显示:接触网弹性系数的均匀程度是弓网稳定运行的主要条件。如果能使接触网的弹性系数在整个接触网上都是均匀的,则这种接触网可以使受流速度理论上无限大。用桁架代替现有接触网的承力索,从根本上改变了接触网的悬链型特性,实现了接触网的匀弹性。这种接触网无速度上限,建造成本不高,日常维护容易。
In this paper,those conditions deciding the stability of Pantograph -Catenary Motion (PCM)were analyzed with the Mathieu Function.The results indicate that,it is the level of uniformity for the coefficient of e-lasticity in Overhead Contact System (OCS)that mainly determines the stability of PCM.If this coefficient can be designed to be distributed evenly for the entire system,the current speed of OCS is capable of approaching in-finity theoretically.The trusses were utilized to replace the existing carrier cables,which fundamentally improves the catenary property of OCS and realizes the uniformity of elasticity.This novel type of OCS not only places no restriction on the upper-limit of speed,but also is economical and convenient for maintenance.This paper of-fers a new direction for the development of the high-speed electric railway in the future.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2014年第5期154-158,共5页
Journal of Railway Science and Engineering
基金
国家自然科学基金资助项目(U1334018)
关键词
高速铁路
高速弓网
接触网弹性
受流稳定性
high-speed railway
pantograph and catenary in high-speed railway
elasticity of catenary
stability of current feed
