A general theory for bandgap estimation in locally resonant metastructures
Locally resonant metamaterials are characterized by bandgaps at wavelengths that are
much larger than the lattice size, enabling low-frequency vibration attenuation. Typically …
much larger than the lattice size, enabling low-frequency vibration attenuation. Typically …
[HTML][HTML] On the mechanism of bandgap formation in locally resonant finite elastic metamaterials
Elastic/acoustic metamaterials made from locally resonant arrays can exhibit bandgaps at
wavelengths much longer than the lattice size for various applications spanning from low …
wavelengths much longer than the lattice size for various applications spanning from low …
Formation of local resonance band gaps in finite acoustic metamaterials: A closed-form transfer function model
The objective of this paper is to use transfer functions to comprehend the formation of band
gaps in locally resonant acoustic metamaterials. Identifying a recursive approach for any …
gaps in locally resonant acoustic metamaterials. Identifying a recursive approach for any …
[HTML][HTML] Multiple bandgap formation in a locally resonant linear metamaterial beam: Theory and experiments
This study presents a strategy of vibration suppression of a beam when multiple resonant
frequencies of the structure are excited. The methodology operates on the ability of local …
frequencies of the structure are excited. The methodology operates on the ability of local …
Closed-form formulas for bandgap estimation and design of metastructures undergoing longitudinal or torsional vibration
Metastructures can be employed to control waves/vibrations owing to their unique bandgap
behaviour. There are two problems that are of great concern in the design of …
behaviour. There are two problems that are of great concern in the design of …
Widening, transition and coalescence of local resonance band gaps in multi-resonator acoustic metamaterials: From unit cells to finite chains
Local resonance band gaps in acoustic metamaterials are widely known for their strong
attenuation yet narrow frequency span. The latter limits the practical ability to implement …
attenuation yet narrow frequency span. The latter limits the practical ability to implement …
Thermally tunable band gaps in architected metamaterial structures
C Nimmagadda, KH Matlack - Journal of Sound and Vibration, 2019 - Elsevier
The combined characteristics of periodic and locally resonant features in metamaterial
structures, or meta-structures, give rise to unique wave propagation characteristics such as …
structures, or meta-structures, give rise to unique wave propagation characteristics such as …
Closed-form bandgap design formulas for beam-type metastructures
Metastructures have received increasing attention because of their unique bandgap
behavior that can be utilized to control vibration and noise of mechanical structures. This …
behavior that can be utilized to control vibration and noise of mechanical structures. This …
Merging mechanical and electromechanical bandgaps in locally resonant metamaterials and metastructures
Locally resonant metamaterials are characterized by bandgaps at wavelengths much larger
than the lattice size. Such locally resonant bandgaps can be formed using mechanical or …
than the lattice size. Such locally resonant bandgaps can be formed using mechanical or …
Tailoring vibration suppression bands with hierarchical metamaterials containing local resonators
Vibration suppression at subwavelength scales is of great interest in acoustic and/or elastic
metamaterial engineering which has a wide range of potential applications requiring …
metamaterial engineering which has a wide range of potential applications requiring …