连续支承条件下轨道位移波的动力特性分析
Dynamic Analysis ofTrack Wave Propagation Supported on Continuous Elastic Foundations
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摘要: 建立了列车与连续支承轨道耦合振动的动力学模型,通过计算模拟了高速列车作用下所出现的轨道位 移波现象。分析了轨面不平顺波长、轨道质量、刚度、阻尼等参数对轨道临界速度及位移波的影响。Abstract: A dynamic analysis model is proposed for the train/track system supported on continuous elastic foundations. The track wave propagation problem under a high-speed train is studied. The influences of some parameters, such as rail surface irregularitywavelength, trackmass, track rigidity and track viscosity, on the critical speed and the track wave propagation are analyzed.
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Key words:
- trackways /
- critical velocity /
- displacementwave
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