TY - GEN
T1 - Research and Application of Vibration and Noise Reduction Local Resonance Metamaterial Plate
AU - Wang, Dongxian
AU - Ma, Qian
AU - Zhu, Rui
AU - Yi, Kaijun
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
KW - Band gap
KW - Lightweight
KW - Locally resonant
KW - Structure-borne noise
KW - Vibration isolation metamaterial
UR - http://www.scopus.com/inward/record.url?scp=85197349155&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-8048-2_105
DO - 10.1007/978-981-99-8048-2_105
M3 - Conference contribution
AN - SCOPUS:85197349155
SN - 9789819980475
T3 - Lecture Notes in Mechanical Engineering
SP - 1571
EP - 1585
BT - Proceedings of the 2nd International Conference on Mechanical System Dynamics - ICMSD 2023
A2 - Rui, Xiaoting
A2 - Liu, Caishan
PB - Springer Science and Business Media Deutschland GmbH
T2 - 2nd International Conference of Mechanical System Dynamics, ICMSD 2023
Y2 - 1 September 2023 through 5 September 2023
ER -