Measuring,modelling and optimising an embedded rail track |
| |
Authors: | Yue Zhao Xusheng Li Qiang Lv Honglin Jiao Xinbiao Xiao Xuesong Jin |
| |
Affiliation: | 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;2. School of Economics and Management, Southwest Jiaotong University, Chengdu 610031, China;3. Chengdu Xinzhu Road & Bridge Machinery Co. Ltd., Chengdu 611430, China |
| |
Abstract: | A finite element (FE) model and a boundary element (BE) model have been developed to predict the decay rate, vibration and noise responses of an embedded rail track. These models are validated using measured results. The optimisation of the embedded rail track is conducted using these calculated models. The results indicate that the optimised cross-section of the gutter for the embedding rail can significantly reduce the radiated noise of the embedded rail track. The embedded rail track using the I-shaped cross-section gutter reduces the radiated noise of the track by at least by 3 dB(A). Furthermore, combining the material parameter optimisation with the gutter cross-section optimisation can further reduce the radiated noise of the embedded rail track. Increasing the Young’s modulus of the rail pad in the embedded rail track with the I-shaped cross-section gutter can result in a radiated noise reduction of 4 dB(A). |
| |
Keywords: | Embedded rail Wheel/rail rolling noise Decay rate Tramway Frequency response function |
本文献已被 ScienceDirect 等数据库收录! |
|