| 跨座式列车与预应力混凝土轨道梁动力特性分析 |
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| 引用本文： | 刘羽宇.跨座式列车与预应力混凝土轨道梁动力特性分析[J].兰州铁道学院学报,2014(4):56-60. |
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| 作者姓名： | 刘羽宇 |
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| 作者单位： | 中国民用航空飞行学院飞行技术学院,四川广汉618307 |
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| 基金项目： | 国家自然科学基金民航联合基金（U1333133） |
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| 摘 要： | 为研究跨座式单轨列车与预应力混凝土轨道梁的动力特性,建立了列车-轨道梁空间耦合振动模型.车辆运动微分方程由拉格朗日方程导出,轨道梁用模态综合法建立其运动微分方程.计算了不同车速下车辆和轨道梁的动力响应.结果表明:车速对轨道梁挠度的影响较小,但对加速度影响较大;在计算车速下,轨道梁具有良好的动力特性,列车能安全舒适地通过此轨道梁.
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| 关 键 词： | 跨座式单轨交通 车辆-轨道梁耦合振动 动力特性 |
Dynamic Characteristic Analysis of Straddle-type Monorail Train and Pre-stressed Concrete Beam |
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| LIU Yu-yu.Dynamic Characteristic Analysis of Straddle-type Monorail Train and Pre-stressed Concrete Beam[J].Journal of Lanzhou Railway University,2014(4):56-60. |
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| Authors: | LIU Yu-yu |
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| Institution: | LIU Yu-yu (Flight Technology College, Civil Aviation Flight University of China, Guanghan 618307, China) |
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| Abstract: | A coupled vibration model is established to study the interaction dynamic characteristics between straddle-type monorail train and pre-stressed concrete（PC）beam.Vehicle＆#39;s differential e-quations are derived by using Lagrange formulation.The PC beam＆#39;s differential equations are de-rived by using modal synthesis method.The dynamic responses of the coupled system are studied at different running velocities.The results show that the effects of the train velocity on the deflec-tions of the beam are less than the accelerations.The beam has well dynamic characteristics and the train can safely and comfortably go through with the computed speed. |
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| Keywords: | straddle-type monorail transportation coupled vibration system of vehicle and beam dynamic characteristic |
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