Influence of resonator configuration on band gap range in acoustic metamaterials

Riaz Ahmed, Hossain Ahmed

Research output: Contribution to book or proceedingConference articlepeer-review

2 Scopus citations

Abstract

In recent years study acoustic metamaterials have found great attention due to its enormous ability to guide and manipulate elastic wave in a medium. Frequency bandgap is a great feature that can be achieved by acoustic metamaterials. The bandgap is the frequency range at which the elastic wave doesn't propagate through the medium. In another word, the frequency band gap offers wave isolation ability for a structure. An acoustic metamaterial usually consists of resonators and a host media. The frequency bandgap is mainly the result of brag scattering in the structure. The orientation and geometry of resonators in a unit cell possess a great influence on brag scattering. This study is dedicated to understanding the influence of resonators volume percentage in the frequency bandgap. Several resonator geometries of two different combinations are studied. Finally, comparing the outcome from both the combinations, a claim is made regarding the effect of volume fraction on frequency band gaps.

Original languageEnglish
Title of host publication2021 12th International Conference on Mechanical and Aerospace Engineering, ICMAE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages339-342
Number of pages4
ISBN (Electronic)9781665433211
DOIs
StatePublished - Jul 16 2021
Event12th International Conference on Mechanical and Aerospace Engineering, ICMAE 2021 - Virtual, Athens, Greece
Duration: Jul 16 2021Jul 19 2021

Publication series

Name2021 12th International Conference on Mechanical and Aerospace Engineering, ICMAE 2021

Conference

Conference12th International Conference on Mechanical and Aerospace Engineering, ICMAE 2021
Country/TerritoryGreece
CityVirtual, Athens
Period07/16/2107/19/21

Scopus Subject Areas

  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Fuel Technology

Keywords

  • Acoustic metamaterial
  • Band gap
  • Material anisotropy
  • Periodic media
  • Split-ring resonator

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