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    Vibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground Railway

    Source: Journal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008::page 04023254-1
    Author:
    Linchang Miao
    ,
    Lijian Lei
    ,
    Chao Li
    ,
    Haizhong Zheng
    ,
    Zhendong Qian
    DOI: 10.1061/JMCEE7.MTENG-15400
    Publisher: 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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      Vibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground Railway

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4293816
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    contributor authorLinchang Miao
    contributor authorLijian Lei
    contributor authorChao Li
    contributor authorHaizhong Zheng
    contributor authorZhendong Qian
    date accessioned2023-11-27T23:45:27Z
    date available2023-11-27T23:45:27Z
    date issued5/30/2023 12:00:00 AM
    date issued2023-05-30
    identifier otherJMCEE7.MTENG-15400.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4293816
    description abstractTrain 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.
    publisherASCE
    titleVibration Reduction of Phononic-Like Crystal Metaconcrete Track Bed for Underground Railway
    typeJournal Article
    journal volume35
    journal issue8
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/JMCEE7.MTENG-15400
    journal fristpage04023254-1
    journal lastpage04023254-10
    page10
    treeJournal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008
    contenttypeFulltext
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