Measuring high-frequency wave propagation in railroad tracks by joint time–frequency analysis
- 作者：Lanza di Scalea ; F. ; McNamara ; J.
- 刊名：Journal of Sound and Vibration
- 出版年：2004
- 期刊代码：91_0022460x
- 类别：ph
- 出版时间：June 7, 2004
- 卷：273
- 期：3
- 页码：637-651
- 文件大小：423 K
摘要
The behavior of high-frequency elastic waves propagating in railroad tracks is relevant to the field of rail noise generation and long-range rail inspection. While a large amount of theoretical and numerical work exists to predict transient vibrations propagating in rails, obtaining experimental data has been particularly challenging due to the multimode and dispersive behavior of the waves.