Lattices With Internal Resonator Defects

Abstract

We consider a variety of settings involving chains with one or more defects stemming from the introduction of nodes bearing internal resonators. Motivated by experimental results in woodpile elastic lattices with one or two defects, we consider a variety of different theoretical scenarios. These include multi-defect chains and their ability to transmit, reflect, and especially trap energy; they also include settings with linear vs. nonlinear defects of variable interaction exponent. Moreover, they involve defects which are spatially separated and either statically, or more effectively dynamically, enable the confinement of energy between the separated defects. Wherever possible, comparisons of the experiments with numerical simulations, as well as with theoretical intuition are also offered, to provide a justification for the observed findings.

arXiv comment12 pages, 10 figures

References in corpus (7)

• Strongly nonlinear waves in a chain of Teflon beads
• Anomalous wave reflection from the interface of two strongly nonlinear granular media
• Generation of Sound Bullets with a Nonlinear Acoustic Lens
• Highly Nonlinear Wave Propagation in Elastic Woodpile Periodic Structures
• Wave propagation in single column woodpile phononic crystals: Formation of tunable band gaps
• Nonlinear Coherent Structures in Granular Crystals
• Interaction of Traveling Waves with Mass-With-Mass Defects within a Hertzian Chain