电气化铁路接触网风致舞动研究现状与进展

为了应对电气化铁路接触网风致舞动灾害对我国铁路交通运输造成的不利影响,总结一系列国内外接触网舞动相关的文献。舞动现象内在原因复杂,当前舞动机理性研究中的邓哈托判定以及尼格尔判定都对实际情况作出较大简化,现有的舞动理论并不能准确的定量分析接触网舞动现象;通过研发防舞装置来抑制接触网舞动发生是一种可行的方法;有限元模拟分析可以为研究舞动开辟新的思路。最后对接触网舞动研究中的有待解决的问题进行归纳,并提出需进一步研究的内容和方法。

Researches on Wind-induced Galloping of Electric Railway Catenary

In order to deal with the disaster-prone wind-induced electric railways catenary galloping,a series of domestic and international literature about catenary galloping are summarized. Some results are as follows. The underlying causes of galloping are so complicated that the existing galloping theories can not be used to for accurate and quantitative analysis of catenary galloping. The development of anti-galloping devices to suppress catenary galloping is a feasible way. Finite element simulation analysis may provide a new approach for the study of catenary galloping. Finally,the remaining problems about catenary galloping are addressed and further research details and methods are proposed.