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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第11卷    第5期    总第61期    2014年10月

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文章编号:1672-7029(2014)05-0154-05
一种匀弹性接触网
常丽1,李丰良2,年晓红3

(1.中铁咸阳干部管理学院,陕西 咸阳 712000;
2.中南大学 土木工程学院,湖南 长沙 410075;
3.中南大学 信息科学与工程学院,湖南 长沙 410075
)

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。

 

关键字: 高速铁路;高速弓网;接触网弹性;受流稳定性

A catenary with equal elasticity
CHANG Li1,LI Fengliang2,NIAN Xiaohong3

1. Xianyang Management Institute of CREC, Xianyang 712000, China;
2. School of Civil Engineering, Central South University, Changsha 410075, China;
3. School of Information Science and Engineering, Central South University, Changsha 410075 ,China

Abstract: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 elasticity 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 infinity 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 offers a new direction for the development of the high-speed electric railway in the future.

 

Key words: high-speed railway; pantograph and catenary in high-speed railway; elasticity of catenary; stability of current feed

ISSN 1672-7029
CN 43-1423/U

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