| 高速列车外部流场和车内噪声模拟计算 |
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| 引用本文： | 赵剑秋,陆森林,左言言. 高速列车外部流场和车内噪声模拟计算[J]. 噪声与振动控制, 2013, 33(6): 124-128 |
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| 作者姓名： | 赵剑秋 陆森林 左言言 |
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| 作者单位： | ( 江苏大学 汽车与交通工程学院, 江苏 镇江 212013 ） |
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| 基金项目： | 教育部博士点基金资助项目（20103227110009） |
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| 摘 要： | 研究表明，高速列车气流噪声主要取决于车身表面脉动压力，所以研究列车车身表面脉动压力对进一步研究和控制高速列车气流噪声具有重要的意义。采用有限元法对高速列车外流场进行数值模拟，计算结果反映高速列车外流场特性。在此基础上，进一步对高速列车表面脉动压力进行数值模拟计算，并通过声固耦合的方法得到车内某点的声压级，得到一些有意义的结论。
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| 关 键 词： | 声学 气流噪声 流场 表面脉动压力 车内噪声 |
| 收稿时间： | 2012-12-05 |
Simulation of Exterior Flow Field and Interior Noise for |
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| Affiliation: | ZHAO Jian-qiu, L U Sen-lin, ZUO Yah-yah ( School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu China ) |
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| Abstract: | The airflow noise of the surface of high-speed trains mainly depends on the tluctuatmg pressure on the body surface, so, analysis of the fluctuating pressure is of great significance for airflow noise control of the high-speed trains. In this paper, the external flow field of the high- speed trains was simulated by means of finite element method, and its characteristics were analyzed. On this basis, pulsating pressure on the surface of the high-speed trains was calculated numerically, and the interior sound pressure level was obtained based on acoustic-structure coupling. Some significant conclusions were drawn. |
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| Keywords: | acoustics aerodynamic noise flow field surface pressure fluctuation interior noise |
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