| 高速车辆过桥时的舒适性分析 |
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| 引用本文： | 胡振东,王华林. 高速车辆过桥时的舒适性分析[J]. 振动与冲击, 2002, 21(4): 104-105,103 |
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| 作者姓名： | 胡振东 王华林 |
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| 作者单位： | 同济大学固体力学教育部重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目 (1 990 2 0 1 3) |
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| 摘 要： | 车辆过桥引发的振动问题已有很多研究，目前大部分工作集中在桥梁结构的安全性方面，本文从舒适性角度出发，讨论了桥梁结构的振动对车辆垂向加速度的影响，基于移动荷载简支梁模型，给出了车辆垂向加速度与车速及梁桥固有频率之间的数学关系，并分析了路桥过渡段及临界速度情况下车辆的最大加速度。
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| 关 键 词： | 车辆 桥梁 振动 舒适性 垂向加速度 动力响应 荷载 动力学 |
Analysis of Comfort Properties for Hig-Speed Vehicle Moving over Bridge |
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| Hu Zhendong Wang Hualin. Analysis of Comfort Properties for Hig-Speed Vehicle Moving over Bridge[J]. Journal of Vibration and Shock, 2002, 21(4): 104-105,103 |
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| Authors: | Hu Zhendong Wang Hualin |
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| Abstract: | The vibration problem induced by vehicle moving over bridge has been widely investigated,but most of previous work is focused on the security of bridge.In the view of comfort properties,the effects of bridge vibration on the vertical acceleration of vehicle are discussed in present paper.Based on the model of simple supported beam with moving load,the relationship between the vertical acceleration of vehicle and is moving speed as the natural frequency of beam_like bridge is provided by analytical method.The maximal vertical accelerations of vehicle both at the end of bridge and at the critical state are also analyzed in the paper. |
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| Keywords: | high_speed vehicle bridge vibration comfort property |
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