Research and Application of Vibration and Noise Reduction Local Resonance Metamaterial Plate

Dongxian Wang, Qian Ma, Rui Zhu*, Kaijun Yi

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Locally resonant metamaterials (LRM) with structural stop band behavior can strongly increase the performance of vibration attenuation and sound transmission in a targeted frequency range. This work proposes an LRM plate with a folded beam structure to generate excellent property. The LRM plate is formed by a periodic arrangement of folded beam resonators, the LRM plate has the characteristics of broadband, low-frequency bandgap, light-weight, easy processing and can be well integrated into structures that require vibration and noise reduction. Firstly, theoretical and numerical researches are carried out to obtain the dispersion relation and the bandgap of the folded beam LRM plate utilizing both the plane wave expansion (PWE) method and the finite element method (FEM). Additionally, the dynamic properties of the LRM plate are acquired applying FEM to evaluate its wave attenuation ability within the bandgap. Lastly, the folded beam LRM is used to address the noise issue of the refrigerator in practical engineering, and the radiated sound power level (RSPL) of a refrigerator compressor during normal operation was reduced by about 10db within the designed bandgap range.

源语言英语
主期刊名Proceedings of the 2nd International Conference on Mechanical System Dynamics - ICMSD 2023
编辑Xiaoting Rui, Caishan Liu
出版商Springer Science and Business Media Deutschland GmbH
1571-1585
页数15
ISBN(印刷版)9789819980475
DOI
出版状态已出版 - 2024
活动2nd International Conference of Mechanical System Dynamics, ICMSD 2023 - Beijing, 中国
期限: 1 9月 20235 9月 2023

出版系列

姓名Lecture Notes in Mechanical Engineering
ISSN(印刷版)2195-4356
ISSN(电子版)2195-4364

会议

会议2nd International Conference of Mechanical System Dynamics, ICMSD 2023
国家/地区中国
Beijing
时期1/09/235/09/23

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引用此

Wang, D., Ma, Q., Zhu, R., & Yi, K. (2024). Research and Application of Vibration and Noise Reduction Local Resonance Metamaterial Plate. 在 X. Rui, & C. Liu (编辑), Proceedings of the 2nd International Conference on Mechanical System Dynamics - ICMSD 2023 (页码 1571-1585). (Lecture Notes in Mechanical Engineering). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-99-8048-2_105