Targeted energy transfer phenomena in vibro-impact oscillators

Young S. Lee, Francesco Nucera, Alexander F Vakakis, D. Michael McFarland, Lawrence Bergman

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

Abstract

We study targeted energy transfer (TET) in a coupled oscillator, consisting of a single-degree-of-freedom primary linear oscillator coupled to a vibro-impact nonlinear energy sink (VI NES). For this purpose, we first compute the VI periodic orbits of the underlying hamiltonian VI system, and construct the corresponding frequency-energy plot (FEP). Then, considering inelastic impacts and viscous dissipation, we examine VI damped transitions on the FEP to identify a TET phenomenon by exciting a VI impulsive orbit, which is the most efficient mechanism for TET. Not only can the VI TET involve passive absorption and local dissipation of significant portions of the energy from the primary systems, but it occurs at sufficiently fast time scales. This renders VI NESs suitable for applications, like seismic mitigation, where shock elimination in the early, highly energetic regime of the motion is a critical requirement.

Original languageEnglish (US)
Title of host publication2008 Seismic Engineering Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake
Pages1390-1398
Number of pages9
EditionPART 1
DOIs
StatePublished - Dec 1 2008
Event2008 Seismic Engineering International Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake, MERCEA 2008 - Reggio Calabria, Italy
Duration: Jul 8 2008Jul 11 2008

Publication series

NameAIP Conference Proceedings
NumberPART 1
Volume1020
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other2008 Seismic Engineering International Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake, MERCEA 2008
CountryItaly
CityReggio Calabria
Period7/8/087/11/08

Keywords

  • Targeted energy transfer (TET)
  • passive and broadband vibration absorber
  • vibro-impact nonlinear energy sink (VI NES)

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Lee, Y. S., Nucera, F., Vakakis, A. F., McFarland, D. M., & Bergman, L. (2008). Targeted energy transfer phenomena in vibro-impact oscillators. In 2008 Seismic Engineering Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake (PART 1 ed., pp. 1390-1398). (AIP Conference Proceedings; Vol. 1020, No. PART 1). https://doi.org/10.1063/1.2963762