Targeted mode attenuation and broadband vibration control with optimized elastomeric metamaterials

Sih Ling Yeh, Ryan L. Harne

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study investigates the broadband vibration attenuation mechanism of optimal cylindrical metamaterial inclusions embedded within a hollow tubular beam. The optimal metamaterial inclusions are obtained by leveraging a genetic algorithm with an analytical model of the system. The analytical model is formulated on an energy method and approximately solved by the Ritz method. Experimental efforts affirm that the model identifies the optimal metamaterial inclusions to best provide broadband vibration control capability. The results suggest that optimal inclusions often exhibit quasi-solid cross-section geometries to maximize damping behaviors similar to constrained layer dampers. Results from this research give the insight on the most influential vibration attenuation mechanisms by elastomeric metamaterials.

Original languageEnglish (US)
Title of host publicationBehavior and Mechanics of Multifunctional Materials XIII
EditorsHani E. Naguib
PublisherSPIE
ISBN (Electronic)9781510625914
DOIs
StatePublished - 2019
EventBehavior and Mechanics of Multifunctional Materials XIII 2019 - Denver, United States
Duration: Mar 4 2019Mar 6 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10968
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceBehavior and Mechanics of Multifunctional Materials XIII 2019
CountryUnited States
CityDenver
Period3/4/193/6/19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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