考虑温度影响的轨道横向动力特性研究

A Study the Lateral Viberation of Railway Track With Consideration of Temperature Influence

建立了轨温变化产生的温度应力条件下的轨道结构横向动力响应计算方法．分析了具有不同结构参数的轨道结构在５００Ｈｚ频率范围内的位移响应。计算结果表明，本文方法能较好地反映实际情况，是分析温度力影响的轨道横向动力特性的有效方法。

The mechanical model of finite element method for the lateral viberation of a railway track is put forward under the condition of temperature stress due to the rise of temperature in a rail. The displacement response of a railway track in the frequency range of 500Hz is analysed, considering the railway track with differenalateral structure parameters. It follows from the calculation that the method presents a more effective approach to the analysis of a railway track’s lateral viberation.