| 基于ALE的高速列车声屏障脉动力数值模拟研究 |
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| 引用本文： | 陈向东,李树德,王召祜.基于ALE的高速列车声屏障脉动力数值模拟研究[J].铁道学报,2011(12). |
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| 作者姓名： | 陈向东 李树德 王召祜 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院;铁道第三勘察设计院集团有限公司; |
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| 基金项目： | 国家自然科学基金(51005013); 中国博士后科学基金(20090460703); 天津市企业博士后科技创新择优资助计划项目 |
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| 摘 要： | 随着环境友好型铁路建设的发展要求,声屏障作为有效的降噪手段得到广泛的应用,脉动力是声屏障动力设计中必须控制的因素。基于ALE方法构建高速列车、声屏障、空气三维数值模型,对列车经过声屏障时产生的脉动力过程进行仿真。分析声屏障脉动力分布特性及脉动力时程变化特性,分析列车运行速度、声屏障高度、与股道中心线距离等因素对脉动力的影响规律,数值模型求解采用并行计算技术,分析并行区域分解方案对并行效率及加速比的影响。本文研究结果为高速铁路声屏障结构设计提供参考依据。
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| 关 键 词： | ALE 高速列车 声屏障 脉动力 |
Numerical Simulation Study on High-speed Train Induced Impulsive Pressure on Railway Noise Barrier Based on ALE |
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| CHEN Xiang-dong,LI Shu-de,WANG Zhao-hu.Numerical Simulation Study on High-speed Train Induced Impulsive Pressure on Railway Noise Barrier Based on ALE[J].Journal of the China railway Society,2011(12). |
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| Authors: | CHEN Xiang-dong LI Shu-de WANG Zhao-hu |
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| Institution: | CHEN Xiang-dong1,2,LI Shu-de2,WANG Zhao-hu2 (1.School of mechanical Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China,2.The Third Railway Survey & Design Institute,Tianjin 300251,China) |
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| Abstract: | Due to the developing requirements of building environment-friend type railway,noise barriers have been put into wide application as an effective means of reducting noises.The impulsive pressure is the control factor essential to dynamic design of the noise barrier.The three dimensional model of the high-speed train,noise barrier,and air was built with the ALE method to simulate the whole process of generating train-induced impulse pressures.The distribution and time-histories change characteristics of the ... |
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| Keywords: | ALE high-speed train noise barrier impulsive pressure |
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