列车风致脉动力下声屏障的动力学性能

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

1.
北京航空航天大学宇航学院, 北京 100191
2. 北京航空航天大学航空科学与工程学院, 北京 100191
3. 铁道第三勘察设计院机械动力和环境工程设计处, 天津 300251

详细信息

作者简介:
赵丽滨(1976-),女,黑龙江肇东人,副教授,lbzhao@buaa.edu.cn.

中图分类号: TU 112.59+4
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出版历程
- 收稿日期: 2008-04-25
- 网络出版日期: 2009-04-30

Dynamic properties of noise barrier structure subjected to train-induced impulsive wind pressure

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

摘要

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.
- 声屏障 /
- 空气脉动力 /
- 固有频率 /
- 动力学响应
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 transient dynamic response of the noise barrier structure. The laws of each component-s vibration of the noise barrier structure were obtained. In addition, items needed be paid attention to was put forward.
- noise barrier /
- air turbulent force /
- natural frequency /
- dynamic response

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参考文献(1)

[1] 李艳.声屏障设计中的结构验算[J]. 噪声与振动控制,2007(03):97-99 Li Yan. Structure checking computations of sound barrier design[J]. Noise and Vibration Control, 2007(03): 97-99 (in Chinese) [2] 邵蕴秋. ANSYS8.0有限元分析实例导航[M].北京:中国铁道出版社, 2004 Shao Yunqiu. Example guidance of finite element analysis using ANSYS8.0[M]. Beijing: China Railway Publishing House, 2004 (in Chinese) [3] 马大猷.现代声学理论基础[M].北京:科学出版社,2004 Ma Dayou. Theoretical foundation of modern acoustics[M].Beijing: Science Press, 2004(in Chinese) [4] 方同,薛璞.振动理论及应用[M].西安:西北工业大学出版社,1998 Fang Tong, Xie Pu. Vibration theory and applications[M].Xi’an: Northwest Industrial University Press, 1998 (in Chinese) [5] 吕志涛.高速铁路桥梁建设中的结构问题[J].建筑科学与工程学报,2006(03): 1-6 Lü Zhitao. Structural problems in high-speed railway bridge construction[J]. Journal of Architecture and Civil Engineering, 2006(03):1-6(in Chinese)

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