| 新型铁路沟屏障隔振数值分析 |
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| 引用本文： | 罗锟,雷晓燕. 新型铁路沟屏障隔振数值分析[J]. 噪声与振动控制, 2010, 30(1): 67-71. DOI: 10.3969/j.issn.1006-1355.2010.01.067 |
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| 作者姓名： | 罗锟 雷晓燕 |
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| 作者单位： | （华东交通大学“铁路环境振动与噪声”教育部工程研究中心,南昌 330013） |
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| 基金项目： | 国家重点基础研究发展计划项目,江西省教育厅青年科学基金项目,华东交通大学校立科研基金资助 |
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| 摘 要： | 建立铁路交通引起的大地及敏感点振动分析模型,该数值计算模型由两部分组成,包括车辆-轨道-路基-大地耦合系统动力分析模型和大地-隔振屏障-建筑物耦合系统动力分析模型,运用大型通用有限元软件ANSYS对新型沟屏障的隔振效果进行分析,新型沟屏障包括梯形、倒梯形、三角型、倒三角形等,并将新型沟屏障的隔振效果和传统型式的沟屏障进行对比分析。结果表明:新型沟屏障的隔振效果优于传统沟屏障,表明可以通过改变沟屏障形状达到增加屏障隔振效果的目的,这是一项有益的探索。
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| 关 键 词： | 振动与波 高速铁路 大地振动 沟屏障 隔振 |
| 收稿时间： | 2009-04-07 |
Numerical Analysis of Railway Vibration Isolation of New Style Trenches |
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| LUO Kun,LEI Xiao-yan. Numerical Analysis of Railway Vibration Isolation of New Style Trenches[J]. Noise and Vibration Control, 2010, 30(1): 67-71. DOI: 10.3969/j.issn.1006-1355.2010.01.067 |
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| Authors: | LUO Kun LEI Xiao-yan |
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| Affiliation: | (Engineering Research Center of Railway Environment Vibration and Noise,Ministry of Education, East China Jiaotong University, Nanchang330013, China) |
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| Abstract: | Operation of Beijing-Tianjin inter-city railway indicates that the high-speed era of China's railroad started.However,with the increase of the train speed the environmental vibration control along the railways has been becoming a serious problem.Therefore,the project on the ground-borne vibration due to railway traffic is becoming a special concern in civil and environmental engineering.In this paper,the numerical model is set up,which consists of the vehicle-track-roadbed-ground coupling system and the gro... |
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| Keywords: | vibration and wave high-speed railway ground-borne vibration trench vibration isolation |
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