Enhancement of wave damping for metamaterial beam structures with embedded inerter-based configurations

Zhuang Dong, Dimitrios Chronopoulos, Jian Yang

Research output: Journal PublicationArticlepeer-review

7 Citations (Scopus)

Abstract

This study investigates the wave dissipation properties of continuous metamaterial beam structures with embedded inerter-based devices and possible negative-stiffness elements. The vibration attenuation performance of using inerters is evaluated by examining the system frequency response functions and the propagating wave damping ratios. The results show that the response amplitude can be significantly reduced in the targeted frequency ranges. Additionally, anti-resonance frequencies and wave stopbands are induced with the use of inerters. Exceptional energy dissipation properties are also obtained when the proposed oscillators are employed to support a metamaterial beam structure. These findings provide a better understanding of the effects of inerters on vibration suppression and will benefit future designs of smart structures with metamaterials for vibration mitigation.

Original languageEnglish
Article number108013
JournalApplied Acoustics
Volume178
DOIs
Publication statusPublished - Jul 2021

Keywords

  • Inerter
  • Metamaterials
  • Negative stiffness
  • Vibration suppression
  • Wave dissipation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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