Tunable acoustic metamaterial with an array of resonators actuated by dielectric elastomer

Xiang Yu, Zhenbo Lu, Fangsen Cui, Li Cheng, Yongdong Cui

Research output: Journal article publicationJournal articleAcademic researchpeer-review

40 Citations (Scopus)

Abstract

We propose a resonator design by employing a pre-stretched dielectric elastomer (DE) membrane to tune the acoustic property of each resonator. Both numerical and experimental techniques are developed to characterize the acoustic behavior of the proposed device in terms of transmission loss (TL). By connecting multiple resonators, we show that a broadband TL can be achieved which combines the multiple attenuation bands provided by each resonator unit. The resulted attenuation band can be tuned by varying the applied voltage to the DE membranes, showing promising potentials such as adaptive sound control devices for ventilation systems and other engineering applications.
Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalExtreme Mechanics Letters
Volume12
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • Acoustic metamaterial
  • Adaptive silencer
  • Dielectric elastomer
  • Tunable resonator

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering (miscellaneous)
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Mechanical Engineering

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