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高速铁路隧道内压缩波模拟实验装置初步研究

杨文喆 刘峰 卫梦杰 姚拴宝 陈大伟

杨文喆, 刘峰, 卫梦杰, 等. 高速铁路隧道内压缩波模拟实验装置初步研究[J]. 实验流体力学, 2023, 37(1): 36-43 doi: 10.11729/syltlx20220096
引用本文: 杨文喆, 刘峰, 卫梦杰, 等. 高速铁路隧道内压缩波模拟实验装置初步研究[J]. 实验流体力学, 2023, 37(1): 36-43 doi: 10.11729/syltlx20220096
YANG W Z, LIU F, WEI M J, et al. Experimental investigation on tunnel pressure wave of high-speed train[J]. Journal of Experiments in Fluid Mechanics, 2023, 37(1): 36-43 doi: 10.11729/syltlx20220096
Citation: YANG W Z, LIU F, WEI M J, et al. Experimental investigation on tunnel pressure wave of high-speed train[J]. Journal of Experiments in Fluid Mechanics, 2023, 37(1): 36-43 doi: 10.11729/syltlx20220096

高速铁路隧道内压缩波模拟实验装置初步研究

doi: 10.11729/syltlx20220096
基金项目: 国家自然科学青年基金(52002265);中国博士后科学基金(2022M712930);山东省博士后创新项目(SDCX-ZG-202203079)
详细信息
    作者简介:

    杨文喆:(1997—),男,吉林松原人,硕士研究生。研究方向:车辆空气动力学。通信地址:山西省太原市万柏林区千峰北路迎泽西大街79号太原理工大学迎西校区机械与运载工程学院车辆实验室(030024)。E-mail:ywzyoung@163.com

    通讯作者:

    E-mail:lf198187@163.com

  • 中图分类号: U25;U271.91

Experimental investigation on tunnel pressure wave of high-speed train

  • 摘要: 高速列车驶入隧道时会产生初始压缩波,其沿隧道纵向传播至出口时会向隧道外辐射形成微气压波。本文搭建了利用高压空气瞬间释放产生初始压缩波的实验装置,对其产生的压缩波开展了实验研究。介绍了实验装置的组成,分析了隧道内压力时程曲线及形成机理,给出了实验装置各参数对初始压缩波的影响规律,对压缩波的后续衰减过程进行了分析。实验结果表明:隧道内的压力波动主要受隧道出入口的反射波影响;通过改变实验装置相关参数能够对初始压缩波的波形进行调节;不同高压腔初始压力下,压缩波的衰减周期相同,但初始幅值越大,相同时间内压力衰减得越快。
  • 图  1  在离隧道入口一定距离处测量的压力变化图[5]

    Figure  1.  Pressure variation diagram measured at a certain distance from the tunnel entrance[5]

    图  2  实验装置实物图

    Figure  2.  Physical diagram of experimental device

    图  3  实验装置简图

    Figure  3.  Schematic diagram of experimental device

    图  4  隧道内整个阶段压力时程变化曲线

    Figure  4.  Pressure time history curve of the whole stage in the tunnel

    图  5  实测初始压缩波变化过程及马赫波传播图

    Figure  5.  Variation process of measured initial compression wave and Mach wave propagation diagram

    图  6  实测后续压缩波变化过程及马赫波传播图

    Figure  6.  The variation process of subsequent compression wave and Mach wave propagation diagram measured

    图  7  不同电磁阀工作电压下压缩波的压力和压力梯度曲线

    Figure  7.  Pressure and gradient curve of compression wave under different working voltages of solenoid valve

    图  8  不同初始压力下压缩波的压力和压力梯度曲线

    Figure  8.  Pressure and gradient curves of compression waves under different initial pressures

    图  9  不同PU管长度的压缩波压力曲线

    Figure  9.  Compression wave pressure curves of different PU pipe lengths

    图  10  压力衰减过程

    Figure  10.  Pressure decay process

    图  11  不同初始压力下正峰值出现的时间间隔

    Figure  11.  The time interval of positive peak at different initial pressures

    图  12  压力正峰值衰减曲线

    Figure  12.  Pressure positive peak attenuation curve

    表  1  不同工况下,压力波动的平均周期

    Table  1.   The average period of pressure fluctuation under different working conditions

    p0/kPaTmean/ms
    20035.795
    30035.759
    40036.004
    60035.921
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-09-16
  • 修回日期:  2022-12-01
  • 录用日期:  2022-12-05
  • 网络出版日期:  2023-03-10
  • 刊出日期:  2023-02-25

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