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仿生菱形表面织构对高速列车摩擦噪声的影响

汪久根 陈仕洪 王庆九

汪久根, 陈仕洪, 王庆九. 仿生菱形表面织构对高速列车摩擦噪声的影响[J]. 交通运输工程学报, 2014, 14(1): 43-48.
引用本文: 汪久根, 陈仕洪, 王庆九. 仿生菱形表面织构对高速列车摩擦噪声的影响[J]. 交通运输工程学报, 2014, 14(1): 43-48.
WANG Jiu-gen, CHEN Shi-hong, WANG Qing-jiu. Effect of bionic rhombic surface texture on frictional noise of high-speed train[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 43-48.
Citation: WANG Jiu-gen, CHEN Shi-hong, WANG Qing-jiu. Effect of bionic rhombic surface texture on frictional noise of high-speed train[J]. Journal of Traffic and Transportation Engineering, 2014, 14(1): 43-48.

仿生菱形表面织构对高速列车摩擦噪声的影响

基金项目: 

浙江省自然科学基金项目 Z1100475

国家自然科学基金项目 51375436

详细信息
    作者简介:

    汪久根(1963-), 男, 安徽枞阳人, 浙江大学教授, 工学博士, 从事摩擦学研究

  • 中图分类号: U260.16

Effect of bionic rhombic surface texture on frictional noise of high-speed train

More Information
    Author Bio:

    WANG Jiu-gen(1963-), male, professor, PhD, +86-571-87951209, me_jg@zju.edu.cn

  • 摘要: 为了降低高速列车运行时的空气摩擦噪声, 仿生鲨鱼皮的表面织构, 在高速列车车厢气固界面设计了菱形表面织构, 建立了噪声分析模型, 采用非结构化混合网格和k-ε模型求解可压缩N-S方程, 基于宽频噪声源模型求解噪声分布。计算结果表明: 在菱形织构内部产生涡流, 使噪声明显降低, 同时车厢表面的噪声分布也发生变化; 列车产生的空气摩擦噪声随着运行速度的增大而增大, 与光滑表面相比, 优化对角线比的菱形织构的摩擦噪声的最大降幅为24dB, 优化深边比的降幅为20dB。

     

  • 图  1  鲨鱼皮的表面织构

    Figure  1.  Surface texture of jaws skin

    图  2  车厢表面织构

    Figure  2.  Surface texture of carriage

    图  3  数值模拟坐标系

    Figure  3.  Coordinates of numerical simulation

    图  4  案例1噪声分布

    Figure  4.  Distribution of noise intensity in case 1

    图  5  案例1车厢表面噪声分布

    Figure  5.  Distribution of noise intensity on surface of carriage in case 1

    图  6  案例1流线

    Figure  6.  Streamlines in case 1

    图  7  案例2噪声分布

    Figure  7.  Distribution of noise intensity in case 2

    图  8  案例2车厢表面噪声分布

    Figure  8.  Distribution of noise intensity on surface of carriage in case 2

    图  9  案例2流线

    Figure  9.  Streamlines in case 2

    图  10  案例3噪声分布

    Figure  10.  Distribution of noise intensity in case 3

    图  11  案例3车厢表面噪声分布

    Figure  11.  Distribution of noise intensity on surface of carriage in case 3

    图  12  案例3流线

    Figure  12.  Streamlines in case 3

    图  13  案例4噪声分布

    Figure  13.  Distribution of noise intensity in case 4

    图  14  案例4车厢表面噪声分布

    Figure  14.  Distribution of noise intensity on surface of carriage in case 4

    图  15  案例4流线

    Figure  15.  Streamlines in case 4

    图  16  案例5噪声分布

    Figure  16.  Distribution of noise intensity in case 5

    图  17  案例5车厢表面噪声分布

    Figure  17.  Distribution of noise intensity on surface of carriage in case 5

    图  18  案例5流线

    Figure  18.  Streamlines in case 5

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    LIN Shi-cai, WANG Jiu-gen. Frictional noise analysis of gassolid interface with circular dents for high-speed train[J]. Journal of Traffic and Transportation Engineering, 2012, 12 (3): 53-59. (in Chinese). http://transport.chd.edu.cn/article/id/201203007
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出版历程
  • 收稿日期:  2013-06-25
  • 刊出日期:  2014-02-25

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