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Influences of the train on track vibration when passing through the railway with irregularities and rigidity abrupt change
Author(s): 
Pages: 1-8
Year: Issue:  6
Journal: Journal of Changsha Railway University

Keyword:  轨道振动 轨道基础刚度 刚度突变 轨道不平顺 轨道过渡段;
Abstract: 通过建立轨道振动微分方程,推导了单轮作用下考虑轨道不平顺和轨道基础刚度突变的轨道变形解析表达式。利用该解析解和叠加原理,研究了轨道不平顺和轨道刚度突变对轨道振动的影响,分析了单轮对和TGV高速动车通过不同的轨道不平顺和4种轨道刚度比时的轨道动力响应。计算表明,轨道不平顺和轨道刚度突变对轨道振动有较大影响,其影响随着轨道不平顺振幅、刚度比和列车速度的增加而增加。
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