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| 列车风致脉动力下声屏障的动力学性能 | |
| 引用本文： | 赵丽滨,龙丽平,蔡庆云. 列车风致脉动力下声屏障的动力学性能[J]. 北京航空航天大学学报, 2009, 35(4): 505-508 |
| 作者姓名： | 赵丽滨 龙丽平 蔡庆云 |
| 作者单位： | 北京航空航天大学宇航学院,北京,100191;北京航空航天大学航空科学与工程学院,北京,100191;铁道第三勘察设计院机械动力和环境工程设计处,天津,300251 |
| 摘 要： | 基于通用有限元分析软件ANSYS,根据京津城际快速列车客运专线桥梁上声屏障结构的设计方案建立有限元模型,对声屏障结构的固有频率进行了研究并提出声屏障结构的简化计算模型.综合考虑高速列车运行过程中声屏障结构的动力学环境,计算在风压、列车运行过程中产生的空气脉动力等共同作用下的声屏障结构的动态响应,阐述了声屏障结构各组件的振动规律,并提出声屏障结构设计需要考虑的问题. |
| 关 键 词： | 声屏障 空气脉动力 固有频率 动力学响应 |
| 收稿时间： | 2008-04-25 |
Dynamic properties of noise barrier structure subjected to train-induced impulsive wind pressure |
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| Zhao Libin,Long Liping,Cai Qingyun. Dynamic properties of noise barrier structure subjected to train-induced impulsive wind pressure[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4): 505-508 | |
| Authors: | Zhao Libin Long Liping Cai Qingyun |
| Affiliation: | 1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China; 2. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China; 3. Department of Mechanical Power and Environment Engineering Design, The Third Survey and Design Institute of China Railway, Tianjin 300251, China |
| Abstract: | According to noise barrier design scheme of special railways for passenger transportation from Beijing to Tianjin,the finite element model of noise barrier was established based on the general software ANSYS.The natural frequency of noise barrier structure was detailedly researched and a practical calculation model was presented.The dynamic environment around the noise barrier,which includes the natural wind pressure and the air turbulent force induced by the high speed train,was considered to simulate the ... |
| Keywords: | noise barrier air turbulent force natural frequency dynamic response |
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