Characteristics of train noise in crosswind conditions
文献类型：会议论文
| 作者 | Sun ZX(孙振旭) ; Yang GW(杨国伟); Guo DL(郭迪龙)
|
| 出版日期 | 2014 |
| 会议日期 | 8-11 April 2014 |
| 会议地点 | Ajaccio, Corsica, France |
| 关键词 | Acoustic fields Acoustic intensity Aerodynamic loads Aerodynamics Flow separation Railroad cars Railroad transportation Railroads Aerodynamic noise Crosswind Detached eddies Flow reattachment Non linear acoustics |
| 英文摘要 | The aerodynamic loads and noise of high speed trains deteriorate rapidly in crosswind conditions. Typical study usually focuses on the characteristics of aerodynamic loads and corresponding safety issues, while less on the noise characteristics. In the present paper, a hybrid NLAS/FW-H approach has been adopted to investigate the near field and far field noise of high speed trains under different yaw angles. As the root of acoustic field, typical flow phenomena in crosswind conditions has been firstly analyzed, and flow separations and reattachments on the train surface have been discussed in detail. For the near field analysis, the asymmetric characteristics of acoustic field have been studied and the comparison with that in no crosswind conditions has been performed. For the far field analysis, the comparison of the acoustic intensity of probes in the windward and leeward sides has been performed, and a linear relationship between the yaw angle and the acoustic intensity has been obtained. Results in this paper could aid in the study of amenity problem for trains running in complex conditions. © Civil-Comp Press, 2014. |
| 会议录 | PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
 |
| 语种 | 英语 |
| ISBN号 | 978-1-905088-59-1 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77999]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China |
| 推荐引用方式 GB/T 7714 | Sun ZX,Yang GW,Guo DL. Characteristics of train noise in crosswind conditions[C]. 见:. Ajaccio, Corsica, France. 8-11 April 2014. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。