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Presentation
Negative Effective Mass Density of Acoustic Metamaterial using Dual-Resonator Spring-Mass Model
Metamaterials '2012: The Sixth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
  • Kwek Tze Tan, University of Akron Main Campus
  • H. H. Huang
  • C. T. Sun
Document Type
Conference Proceeding
Publication Date
1-1-2012
Abstract
In this paper, we propose an acoustic metamaterial with a microstructure consisting of two internal resonators. The performance of this dual-resonator metamaterial is compared to the original singleresonator metamaterial. Analytical findings show that the dual-resonator metamaterial exhibits its negative effective mass density over a larger frequency spectrum, particularly at two distinctively asymptotic regions. The wave propagation phenomenon in the metamaterial is investigated using finite element simulation. Computational results reveal that the dual-resonator metamaterial is capable of attenuating wave propagation in a larger operating frequency. Practical applications like vibration control and blast mitigation are demonstrated and discussed.
Citation Information
Kwek Tze Tan, H. H. Huang and C. T. Sun. "Negative Effective Mass Density of Acoustic Metamaterial using Dual-Resonator Spring-Mass Model" Metamaterials '2012: The Sixth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (2012)
Available at: http://works.bepress.com/kwek_tze_tan/14/