温州市域铁路S1线减振扣件设计及应用

Design and Application of Damping Fasteners for Line S1 of Wenzhou Regional Railway

随着城市规模的不断扩大,市域铁路作为带动区域发展的交通模式引起人们的广泛关注。相对于国外成熟的市域铁路技术和减振措施,国内相应研究工作尚属空白。根据温州市域铁路S1线技术要求,借鉴成熟的双层非线性结构,通过关键参数的优化分析,确定扣件刚度参数。现场在线测试结果表明,研制的市域铁路用双层非线性减振扣件安全性能优异,减振效果达到4.9~5.2 dB,可以满足市域线路的技术要求。

With the continuous expansion of urban scale,the regional railway has attracted widespread attention as a mode of transportation that promotes regional development.Compared with the more developed regional railway technology and vibration damping measures of other countries,corresponding domestic research work is still relatively sparse.According to the technical requirements of the Line S1 of Wenzhou’s regional railway and the fully developed double-layer non-linear structure,the stiffness parameters of fasteners are determined via the optimization of key parameters.The on-line test results show that the safety performance of the double-layer non-linear damping fasteners developed for municipal railways is excellent;the effect of vibration reduction reaches 4.9–5.2 dB,meeting the technical requirements of municipal railways.