Band gap, frequency ranges in which no free wave propagation is one of the most important characteristics of the acoustic metamaterial. The band gaps are realized due to the periodic arrangement of the resonators. Therefore, spring constant of the resonator are important factor in determining the band gap characteristics. This paper investigates the band gap using serpentine springs. The formula of the band gap was derived in a simple system in which the serpentine spring resonators were periodically arranged to the host plate, and analytical calculations was compared with the simulation values. Hence the effects of the serpentine spring parameters on band gap are studied. In conclusion, this paper shows the possibility of band gap implementation using serpentine spring.
|Title of host publication||Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020|
|Editors||Jin Yong Jeon|
|Publisher||Korean Society of Noise and Vibration Engineering|
|Publication date||23 Aug 2020|
|Publication status||Published - 23 Aug 2020|
|Event||49th International Congress and Exposition on Noise Control Engineering - Virtual event, Seoul, Korea, Republic of|
Duration: 23 Aug 2020 → 26 Aug 2020
|Conference||49th International Congress and Exposition on Noise Control Engineering|
|Country||Korea, Republic of|
|Period||23/08/2020 → 26/08/2020|
|Series||Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020|
Bibliographical noteFunding Information:
Based on the results, it was confirmed that the theory(analytical) band gap and FEM(simulation) band gap were very similar. So, this paper shows the possibility of band gap implementation using serpentine spring. . 5. ACKNOWLEDGEMENTS This work was supported by GIST Research Institute(GRI) grant funded by the GIST in 2020 . 6. REFERENCES  Hernan Vazquez Javier, Brunskog Jonas, Cutanda Henriquez Vicente, “An Analytical Model for Broadband Sound Transmission Loss of a Finite Single Leaf Wall using a Metamaterial,” INTER-NOISE, 2019.
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