Theoretical and experimental analysis of bifurcation induced passive bandgap reconfiguration

Conference Paper

© The Society for Experimental Mechanics, Inc. 2016. This paper presents a theoretical analysis and experimental validation of passively reconfigurable bandgaps in a 1D chain of oscillators. Nonlinearities in the system result in a morphing of the bandgap structure when the excitation amplitude passes a certain threshold. Specifically, an asymmetric bistability is used to achieve amplitude dependent filtering through passive bandgap reconfiguration. The experimental system consists of a 1D chain of axially aligned pendulums arranged in dimer unit cells with nearest neighbor coupling. Repulsive magnets are used to induce bistability in the pendulums. Comparisons between experiments and theory show good agreement.

Full Text

Duke Authors

Cited Authors

  • Mazzoleni, MJ; Bernard, BP; Garraud, N; Arnold, DP; Mann, BP

Published Date

  • January 1, 2016

Published In

Volume / Issue

  • 1 /

Start / End Page

  • 155 - 162

Electronic International Standard Serial Number (EISSN)

  • 2191-5652

International Standard Serial Number (ISSN)

  • 2191-5644

International Standard Book Number 13 (ISBN-13)

  • 9783319152202

Digital Object Identifier (DOI)

  • 10.1007/978-3-319-15221-9_13

Citation Source

  • Scopus