Clamping resonators for low-frequency S0 Lamb wave reflection

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A recent elastic metamaterial study found that resonators that "clamp" a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study investigates whether the concept can be extended to S0 Lamb wave modes by designing resonators that can prohibit the propagation of S0 Lamb wave modes in a 1-mm aluminum plate waveguide at 50 kHz. The frequency-matched resonators did not reduce the transmitted signal, leading to the conclusion that the design concept of frequency-matched resonators is not always effective. On the other hand, the resonators designed to clamp the upper surface of the plate were very effective and reduced the transmitted signal by approximately 75%.

Original languageEnglish (US)
Article number257
JournalApplied Sciences (Switzerland)
Volume9
Issue number2
DOIs
StatePublished - Jan 12 2019

Fingerprint

wave reflection
Lamb waves
Surface waves
Resonators
resonators
low frequencies
clamps
Clamping devices
Waveguides
waveguides
propagation
Metamaterials
Aluminum
Energy gap
aluminum

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Cite this

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title = "Clamping resonators for low-frequency S0 Lamb wave reflection",
abstract = "A recent elastic metamaterial study found that resonators that {"}clamp{"} a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study investigates whether the concept can be extended to S0 Lamb wave modes by designing resonators that can prohibit the propagation of S0 Lamb wave modes in a 1-mm aluminum plate waveguide at 50 kHz. The frequency-matched resonators did not reduce the transmitted signal, leading to the conclusion that the design concept of frequency-matched resonators is not always effective. On the other hand, the resonators designed to clamp the upper surface of the plate were very effective and reduced the transmitted signal by approximately 75{\%}.",
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Clamping resonators for low-frequency S0 Lamb wave reflection. / Hakoda, Christopher; Lissenden, III, Clifford Jesse; Shokouhi, Parisa.

In: Applied Sciences (Switzerland), Vol. 9, No. 2, 257, 12.01.2019.

Research output: Contribution to journalArticle

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