Experimental investigation of low-frequency wayside noise from high-speed train

被引：1

作者：

Takami H. ^{[1
]}

Kikuchi K. ^{[1
]}

机构：

[1] Aerodynamics Laboratory, Environmental Engineering Division

来源：

Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | 2010年 / 51卷 / 01期

关键词：

Aerodynamic sound; Concrete bridge noise; High-speed train; Low-frequency noise;

D O I：

10.2219/rtriqr.51.23

中图分类号：

学科分类号：

摘要：

The authors performed laboratory experiments and field measurements to investigate low-frequency noise generated in wayside environments from high-speed train running. The results indicated the following three types of low-frequency sound sources: pressure fields around the nose and tail parts of the train, low-frequency acoustic pressure waves aerodynamically caused by the train itself, and noise radiation from vibrating concrete railway viaducts. Measurements conducted in a higher-speed section revealed that the major sound source of low-frequency noise in the far field was aerodynamically generated unsteady flow, which is analogous to a line source.

引用

页码：23 / 28

页数：5

共 11 条

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