全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

高速列车车内中高频气动噪声计算方法

, PP. 55-60

Keywords: 车辆工程,高速列车,气动噪声,脉动压力,声压级,声腔,统计能量分析

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用SSTk-w湍流模型计算了高速列车的外部非定常流场,提取了车身表面的脉动压力;基于统计能量分析理论,建立了高速列车车内中高频气动噪声分析模型,确定了模型中各个子系统的参数,计算了由车外脉动压力诱发产生的车内气动噪声。计算结果表明高速列车车头的脉动压力变化最剧烈;在中高频范围内,司机室和乘客室的声压级随着频率的增大而减小,在频率为0.5kHz时,司机室的最大声压级为93.79dB,乘客室的最大声压级为81.99dB;在各个频率下,司机室3个声腔的声压级的最大差值为3.89dB,乘客室3个声腔的声压级的最大差值为8.69dB;司机室的声压级大于乘客室的声压级,司机室中部声腔的声压级最大,且主要能量输入来自于车窗和底板。通过对车窗进行有效设计及改善车内吸声性能,能够降低车内气动噪声。

References

[1]  沈志云.高速列车的动态环境及其技术的根本特点[J].铁道学报,2006,28(4):1-5. SHEN Zhi-yun. Dynamic environment of high-speed train and its distinguished technology[J]. Journal of the China Railway Society, 2006, 28(4): 1-5.(in Chinese)
[2]  TALOTTE C. Aerodynamic noise: a cirtical survey[J]. Journal of Sound and Vibration, 2000, 231(3): 549-562.
[3]  宫 镇,夏 恒,曾发林,等.高速车辆内部气流噪声的统计能量分析[J].农业机械学报,2003,34(2):7-10. GONG Zhen, XIA Heng, ZENG Fa-lin, et al. Statistical energy analysis of interior aerodynamic noise of high-speed automobile[J]. Transactions of the Chinese Society for Agricultural Machinery, 2003, 34(2): 7-10.(in Chinese)
[4]  夏 恒,宫 镇,陆森林.用边界元法计算高速车辆内部气流噪声[J].江苏大学学报:自然科学版,2003,24(1):47-50. XIA Heng, GONG Zhen, LU Sen-lin. Calculations about interior aerodynamic noise for high-speed automobile by BEM[J]. Journal of Jiangsu University: Natural Science Edition, 2003, 24(1): 47-50.(in Chinese)
[5]  NOGER C, PATRAT J C, PEUBE J, et al. Aeroacoustical study of the TGV pantograph recess[J]. Journal of Sound and Vibration, 2000, 231(3): 563-575.
[6]  FREDMION N, VINCENT N, JACOB M, et al. Aerodynamic noise radiated by the intercoach spacing and the bogie of a high-speed train[J]. Journal of Sound and Vibration, 2000, 231(3): 577-593.
[7]  KITAGAWA T, NAGAKURAK K. Aerodynamic noise generated by shinkansen cars[J]. Journal of Sound and Vibration, 2000, 231(3): 913-924.
[8]  MELLETA C, LETOURNEAUXA F, POISSONB F, et al. High speed train noise emission: latest investigation of the aerodynamic/rolling noise contribution[J]. Journal of Sound and Vibration, 2006, 293(3): 535-546.
[9]  SASSA T, SATO T, YATSUI S. Numerical analysis of aero-dynamic noise radiation from a high-speed train surface[J]. Journal of Sound and Vibration, 2001, 247(3): 407-416.
[10]  TAKAISHI T, SAGAWA A, NAGAKURA K, et al. Numericalanalysis of dipole sound source around high speed trains[J]. Journal of the Acoustical Society of America, 2002, 111(6): 2601-2608.
[11]  TAKAISHI T, IKEDA M, KATO C. Method of evaluating dipole sound source in a finite computational domain[J]. Journal of the Acoustical Society of America, 2004, 116(3): 1427-1435.
[12]  刘加利.高速列车气动噪声的理论研究与数值模拟[D].成都:西南交通大学,2009. LIU Jia-li. The theoretical research and numerical simulation of aerodynamic noise for high-speed train[D]. Chengdu: Southwest Jiaotong University, 2009.(in Chinese)
[13]  肖友刚,康志成.高速列车车头曲面气动噪声的数值预测[J].中南大学学报:自然科学版,2008,39(6):1267-1272. XIAO You-gang, KANG Zhi-cheng. Numerical prediction of aerodynamic noise radiated from high speed train head surface[J]. Journal of Central South University: Science and Technology, 2008, 39(6): 1267-1272.(in Chinese)
[14]  高宵鹏.舰艇水动力噪声的数值分析与拖拽模拟测试技术研究[D].上海:上海交通大学,2007. GAO Xiao-peng. The study on numerical analysis of fluid noise and acoustic test with towed model[D]. Shanghai: Shanghai Jiaotong University, 2007.(in Chinese)
[15]  刘全刚.高速磁浮车的车内噪声控制计算研究[D]. 上海:上海交通大学,2008. LIU Quan-gang. Research on interior noise control of high-speed maglev train[D]. Shanghai: Shanghai Jiaotong University, 2008.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133