基于简化模型的头车转向架气动噪声特性研究

doi:10.3901/JME.2016.08.152

摘要/Abstract

摘要： 由于高速列车气动噪声形成的机理和分析较为复杂,目前的检测系统还不能从列车高速运行状态下噪声测试中做出清楚的分辨,通过计算流体力学方法研究高速列车头车转向架气动噪声特性。建立经过简化的转向架、头车未安装转向架的简化车身和头车安装简化转向架的车身三种计算模型,分析列车运行200 km/h,300 km/h速度下简化转向架周围流场与气动声场特性,进一步分析此速度下简化转向架对头车车外气动噪声的影响。分析结果显示转向架周围有周期性的漩涡生成、脱落现象,气动噪声在其周围的辐射规律呈现偶极子分布。转向架车轴和构架横梁的上、下表面为偶极子声源集中的部位。前轮对在垂直与气流方向的竖直平面上和平行于气流方向的竖直平面上引起的噪声比后轮对大,在平行于气流的水平平面上比后轮对小。两个速度下,转向架气动噪声分布规律大致相同,幅值有差别。转向架使头车车外噪声显著增高,转向架附近噪声增幅尤为明显。行车速度200 km/h时,简化转向架能使头车车外气动噪声幅值增大3~5 dBA,行车速度300 km/h时,增幅为5~8 dBA。

关键词: 车头, 高速列车, 轮对, 气动噪声, 转向架

Abstract: Due to the complicated mechanism of high-speed train aerodynamic noise formation and difficult in its analysis, using the current detection system can’t distinguish high-speed train aerodynamic noise characteristics clearly from the measured the total noise of the high-speed train in operation. The calculation models of aerodynamic noise of the simplified bogie, the simplified car body and the car body with the two simplified bogies are developed. Using these models analyze flow field and acoustic field distribution around the simplified bogie, the simplified car body and the car body with the two simplified bogies at 200 km/h, 300 km/h. The analysis results show the simplified bogie with periodic vortex generation and shedding phenomenon, around the surrounding radiation dipole distribution, bogie side up and down for the aerodynamic noise source concentration area when it operates. This is mainly caused by the role between the wheelset axle and the bogie frame beam and airflow. The noise level of the front wheelset is larger than that of the rear wheelset on both the vertical symmetric plane perpendicular to the travelling direction and the longitudinal symmetry plane. Bogies play a significant role to aerodynamic noise around the head car. At the speed of 200 km/h,the interaction of the bogie and the airflow can make head car outside of pneumatic noise amplitude increased 3-5 dBA, and 5-8 dBA for 300 km/h . Noise increasing near the bogie is the most obvious.

Key words: bogie, headstock, high-speed train, pneumatic noise, wheelset

中图分类号:

U270

李辉, 肖新标, 金学松. 基于简化模型的头车转向架气动噪声特性研究[J]. 机械工程学报, 2016, 52(8): 152-161.

LI Hui, XIAO Xinbiao, JIN Xuesong. Investigation into Aerodynamic Noise Characteristics of Train Head Car Bogie Based on Simplified Models[J]. Journal of Mechanical Engineering, 2016, 52(8): 152-161.

参考文献

[1] 田红旗. 中国列车空气动力学研究进展[J]. 交通运输工程学报,2006,6(1)：1-9.
TIAN Hongqi. Evolvement of train aerodynamics in China[J]. Journal of Traffic and Transportation Engineering,2006,6(1)：1-9.
[2] 田红旗,梁习锋,许平. 列车空气动力性能研究及外形、结构设计方法[J]. 中国铁道科学,2002,23(5)：138-141.
TIAN Hongqi,LIANG Xifeng,XU Ping. Research on the aerodynamic performance of train and its configuration and structure design method[J]. Journal of the China Railway Society,2002,23(5)：138-141.
[3] 韩珈琪,肖新标,何宾,等. 不同形式声屏障动态特性研究[J]. 机械工程学报,2013,49(10)：20-27.
HAN Jiaqi,XIAO Xinbiao,HE Bin,et al. Study on dynamic characteristics of sound barriers[J]. Journal of Mechanical Engineering,2013,49(10)：20-27.
[4] 姚拴宝,郭迪龙,杨国伟,等. 高速列车气动阻力分布特性研究[J]. 铁道学报,2012,34(7)：18-23.
YAO Shuanbao,GUO Dilong,YANG Guowei,et al. Distribution of high-speed train aerodynamic drag[J]. Journal of the China Railway Society,2012,34(7)：18-23.
[5] 孙艳军,夏娟,梅元贵. 高速列车气动噪声及减噪措施研究[J]. 铁道机车车辆,2009,29(3)：25-28.
SUN Yanjun,XIA Juan,MEI Yuangui. Introduction of aerodynamic noise generated by high-speed train and the reduction of the noise[J]. Railway Locomotive and Car,2009,29(3)：25-28.
[6] 朱剑月,景建辉. 高速列车气动噪声的研究与控制[J].国外铁道车辆,2011,48(5)：1-8.
ZHU Jianyue,JING Jianhui. Research and control of aerodynamic noise in high speed trains[J]. Foreign Railway Cars,2011,48(5)：1-8.
[7] 张军,黄艳艺,兆文忠. 高速列车气动噪声数值仿真[J].大连交通大学学报,2012,33(4)：1-4.
ZHANG Jun,HUANG Yanyi,ZHAO Wenzhong. Research on numerical simulation of aerodynamic noise for high-speed train[J]. Journal of Dalian Jiaotong University,2012,33(4)：1-4.
[8] 刘加利. 高速列车气动噪声特性分析及降噪研究[D]. 成都：西南交通大学,2013.
LIU Jiali. Study on characteristics analysis and control of aeroacoustics of high-speed trains[D]. Chengdu：Southwest Jiaotong University,2013.
[9] 刘加利,张继业,张卫华. 高速列车表面气动噪声研究[J]. 铁道车辆,2010,48(5)：1-5.
LIU Jiali,ZHANG Jiye,ZHANG Weihua. Research on the aerodynamic noise source on surface of high speed trains[J]. Journal of the China Railway Society,2010,48(5)：1-5.
[10] 郑征宇,李人宪. 高速列车表面气动噪声偶极子声源分布数值分析[J]. 西南交通大学学报,2011,46(6)：996-1002.
ZHENG Zhengyu,LI Renxian. Numerical analysis of aerodynamic dipole source on high-speed train surface[J]. Journal of Southwest Jiaotong University,2011,46(6)：996-1002.
[11] 孙振旭,宋婧婧,安亦然. CRH3型高速列车气动噪声数值模拟研究[J]. 北京大学学报,2012,48(5)：701-711.
SUN Zhenxu,SONG Jingjing,AN Yiran. Numerical simulation of aerodynamic noise generated by CRH3 high speed trains[J]. Acta Scientiarum Naturalium Universitatis Pekinensis,2012,48(5)：701-711.
[12] 孙振旭,王一伟,安亦然. 高速列车气动噪声的计算研究 [J]. 水动力学研究与进展,2010,25(5)：660-668.
SUN Zhenxu,WANG Yiwei,AN Yiran. Computational study on aerodynamic sound from high-speed trains[J]. Chinese Journal of Hydrodynamics,2010,25(5)：660-668.
[13] 肖友刚,张平. 高速列车纵向对称面气动噪声计算及外形优化[J]. 环境工程学报,2013,7(4)：1583-1588.
XIAO Yougang,ZHANG Ping. Numerical prediction of aerodynamic noise radiated from longitudinal symmetric plane of high- speed train and shape optimization[J]. Chinese Journal of Environmental Engineering,2013,7(4)：1583-1588.
[14] KANG H M,KIM C L. Two dimensional numerical study in gangway of next generation high speed train for reduction of aero-acoustic noise[J]. South Korea Railroad Society,2011,14(4)：327-332.
[15] 黄莎,梁习峰,杨明智. 高速列车车厢连接部位气动噪声数值模拟及降噪研究[J]. 空气动力学学报,2012,30(2)：254-259.
HUANG Sha,LIANG Xifeng,YANG Mingzhi. Numerical simulation of aerodynamic noise and noise reduction of High-speed train connection section[J]. Acta Aerodynamica Sinica,2012,30(2)：254-259.
[16] PARADOT N,MASSON E,POISSON F,et al. Aero-acoustic methods for high-speed train noise prediction[C/CD]//Proceedings of the World Congress in Railway Research (WCRR),Seoul,Korea. 2008.
[17] IGLESIAS E L,THOMPSON D J,SMITH M G. Component-based model for aerodynamic noise of high-speed trains[C]//Proceedings of the 11th International Workshop on Railway Noise(IWRN). Uddevalla Sweden：Notes on Numerical Fluid Mechanics and Multidisciplinary Design,2015(126)：481-488.
[18] ZHU J Y,HU Z W,THOMPSON D J. Flow simulation and aerodynamic noise prediction for a high-speed train wheelset[J]. International Journal of Aeroacoustics,2014,13(7-8)：533-552.
[19] LIGHTHILL M J. On sound generated aerodynamically. I. general theory[J]. Proceedings of the Royal Society of London,Series A,Mathematical and Ohasical Sciences,1952,211(1107)：564-587.
[20] LIGHTHILL M J. On sound generated aerodynamically. II. Turbulence as a source of sound[J]. Proceedings of the Royal Society of London,Series A,Mathematical and Ohasical Sciences,1952,222(1148)：1-32.
[21] WILLIAMS J E F,HAWKINGS D J. Sound generation by turbulence and surfaces in arbitrary motion[J]. Philosophical Transactions for the Royal Society of London,Series A,Mathematical and Physical Sciences,1969,264(1151)：321-342.
[22] 詹福良,徐俊伟. Virtual.lab acoustics 声学仿真计算从入门到精通[M]. 西安：西北工业大学出版社,2013.
ZHAN Fuliang,XU Junwei. Virtual.lab acoustics simulation from entry to the master[M]. Xi’an：Northwestern Polytechnical University Press,2013.