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Vibration reduction
of low frequency of phononic-like crystal structures for
subways
Linchang Miao, Lijian Lei, Chao Li, Junjie Wang and Zhendong Qian |
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Vol. 17 (2022), No. 3, 193–205
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Abstract |
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Damping vibration reduction techniques, such as using rubber products, are widely used for reducing engineering structure vibrations, but they are mainly suitable for high-frequency damping fields. However, the vibration induced by subways and earthquakes is low frequency vibration. Low frequency vibration reduction is among the major challenges for engineering applications. In this respect, searching for suitable materials for this aim is a very important task. This paper aims to develop a new phononic-like crystal structure material for decreasing subway-induced vibration. The proposed new material has the periodic structure of multicrystal cell aggregates and has the basic characteristics of opening low frequency band gaps. Based on the new phononic-like crystal periodic structure, a high-polymer concrete is constructed. The theoretical and experimental results demonstrate the slab bed track of metro railways with a phononic-like crystal structure possesses the low frequency and wide band gaps and can thus be used in underground railroad transport engineering to reduce vibration wave propagation. |
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Keywords
vibration reduction material, phononic-like crystal, low
frequency band gap, generalized scattering local resonance,
railroad transport engineering.
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Milestones
Received: 12 June 2021
Revised: 9 February 2022
Accepted: 14 February 2022
Published: 22 January 2023
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Authors |
| Linchang Miao | |
| School of Transportation Southeast University Nanjing, Jiangsu China |
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| Lijian Lei | |
| School of Transportation Southeast University Nanjing, Jiangsu China |
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| Chao Li | |
| School of Transportation
Engineering Shandong Jianzhu University Jinan, Shandong China |
School of Transportation Southeast University Nanjing, Jiangsu China |
| Junjie Wang | |
| School of Transportation Southeast University Nanjing, Jiangsu China |
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| Zhendong Qian | |
| School of Transportation Southeast University Nanjing, Jiangsu China |
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