大风区高速铁路接触网附加导线舞动机理及防护措施研究

针对高速铁路接触网附加导线舞动问题,进行附加导线在大风环境下舞动机理方面的分析,研究附加导线处尾流风场、功率谱随环境风速的变化规律,通过风场仿真计算及附加导线有限元分析,判定附加导线在风作用下的舞动为尾流驰振,并据此提出制振措施。

Study on Mechanism of High-speed Railway OCS Additional Wire Dancing in Strong Wind Area and Protective Measures

As to the problem of the dancing of OCS additional wire of high speed railway,this paper analyses the mechanism of the dancing of OCS additional wire in strong wind area and studies the wake wind field at the additional wire and the pattern of the power spectrum varied with wind speed. Through simulation calculation of the wind field and finite element analysis of the additional wire,the dancing of additional wire is recognized as wake galloping and anti-vibration measures are put forward.