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�������պ����ѧѧ�� 2009, Vol. 35 Issue (4) :505-508    DOI:
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1. �������պ����ѧ �ѧԺ, ���� 100191;
2. �������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191;
3. ���������������Ժ ��е�����ͻ���������ƴ�, ��� 300251
Dynamic properties of noise barrier structure subjected to train-induced impulsive wind pressure
Zhao Libin1, Long Liping2, Cai Qingyun3*
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

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ժҪ ����ͨ������Ԫ�������ANSYS,���ݾ���Ǽʿ����г�����ר�������������Ͻṹ����Ʒ�����������Ԫģ��,�������Ͻṹ�Ĺ���Ƶ�ʽ������о�����������Ͻṹ�ļ򻯼���ģ��.�ۺϿ��Ǹ����г����й����������Ͻṹ�Ķ���ѧ����,�����ڷ�ѹ���г����й����в����Ŀ����������ȹ�ͬ�����µ������Ͻṹ�Ķ�̬��Ӧ,�����������Ͻṹ��������񶯹���,����������Ͻṹ�����Ҫ���ǵ�����.
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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.
Keywords�� noise barrier   air turbulent force   natural frequency   dynamic response     
Received 2008-04-25;
About author: ������(1976-),Ů,�������ض���,������,lbzhao@buaa.edu.cn.
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������, ����ƽ,������.�г������������������ϵĶ���ѧ����[J]  �������պ����ѧѧ��, 2009,V35(4): 505-508
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 A, 2009,V35(4): 505-508
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