Active cloaking of flexural waves in thin plates

Gregory Futhazar, William J. Parnell, Andrew N. Norris

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Abstract An active cloak consists of a set of discrete multipole sources distributed in space. When the source positions and amplitudes are carefully specified the active field destructively interferes with an incident time harmonic wave so as to nullify the total field in some finite domain and ensure that in the far field only the incident wave is present, i.e. the active field is non-radiating. Here it is shown how to efficiently determine the source coefficients explicitly in the context of flexural waves in thin plates. The work is carried out in the context of Kirchhoff plate theory, using the Rayleigh-Green theorem to derive the unique source amplitudes for a given incident flexural wave.

Original languageEnglish (US)
Article number1253
Pages (from-to)1-19
Number of pages19
JournalJournal of Sound and Vibration
Volume356
DOIs
StatePublished - Nov 10 2015

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Active cloaking of flexural waves in thin plates'. Together they form a unique fingerprint.

Cite this