Vibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground RailwaySource: Journal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008::page 04023254-1DOI: 10.1061/JMCEE7.MTENG-15400Publisher: ASCE
Abstract: Train vibrations can travel through the track, tunnel structure, and surrounding strata as well as into the structure of buildings near tunnels, where they can be radiated as low-frequency vibration waves and noises inside the building. Low-frequency vibration reduction is a major challenge for vibration control technology. Herein, the new phononic-like crystal metaconcrete material was invented to make the track bed for decreasing vibration induced by trains because it can open low-frequency bandgaps to reduce the low-frequency vibration in actual subway engineering. First, the original phononic-like crystal model was optimized to improve the vibration reduction effect for low-frequency bandgaps. Second, the metaconcrete track beds were conducted according to the new phononic-like crystal model based on the vibration reduction need. Finally, the metaconcrete track beds were installed in the Ning-Ju line of Nanjing Metro in Nanjing, China, and the vibration reduction effect was monitored. The monitoring results in the Ning-Ju line demonstrate that the new phononic-like crystal structure metaconcrete track bed has excellent vibration reduction performance for rail transportation.
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contributor author | Linchang Miao | |
contributor author | Lijian Lei | |
contributor author | Chao Li | |
contributor author | Haizhong Zheng | |
contributor author | Zhendong Qian | |
date accessioned | 2023-11-27T23:45:27Z | |
date available | 2023-11-27T23:45:27Z | |
date issued | 5/30/2023 12:00:00 AM | |
date issued | 2023-05-30 | |
identifier other | JMCEE7.MTENG-15400.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4293816 | |
description abstract | Train vibrations can travel through the track, tunnel structure, and surrounding strata as well as into the structure of buildings near tunnels, where they can be radiated as low-frequency vibration waves and noises inside the building. Low-frequency vibration reduction is a major challenge for vibration control technology. Herein, the new phononic-like crystal metaconcrete material was invented to make the track bed for decreasing vibration induced by trains because it can open low-frequency bandgaps to reduce the low-frequency vibration in actual subway engineering. First, the original phononic-like crystal model was optimized to improve the vibration reduction effect for low-frequency bandgaps. Second, the metaconcrete track beds were conducted according to the new phononic-like crystal model based on the vibration reduction need. Finally, the metaconcrete track beds were installed in the Ning-Ju line of Nanjing Metro in Nanjing, China, and the vibration reduction effect was monitored. The monitoring results in the Ning-Ju line demonstrate that the new phononic-like crystal structure metaconcrete track bed has excellent vibration reduction performance for rail transportation. | |
publisher | ASCE | |
title | Vibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground Railway | |
type | Journal Article | |
journal volume | 35 | |
journal issue | 8 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/JMCEE7.MTENG-15400 | |
journal fristpage | 04023254-1 | |
journal lastpage | 04023254-10 | |
page | 10 | |
tree | Journal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008 | |
contenttype | Fulltext |