Acoustic radiation from a cylindrical shell with an internal plate

J. Bjarnason, J. D. Achenbach, T. Igusa

Research output: Contribution to journalArticlepeer-review

Abstract

The presence of a substructure in a submerged cylindrical shell gives rise to dynamic interactions which influence the radiated acoustic field. The lowest modes of the substructure may resonate vigorously with a higher order mode of the shell. In this paper, a Lagrange's equations formulation is used to analyze the forced harmonic response of a submerged shell/substructure system. An infinitely long cylindrical shell is considered and the substructure is a plate with various types of connections to the shell. Harmonic forcing is applied to the structure and expressions are developed for the far-field radiated pressure. The frequency window method is used to simplify the analysis and to provide approximate solutions in a frequency range of interest.

Original languageEnglish (US)
Pages (from-to)23-41
Number of pages19
JournalWave Motion
Volume15
Issue number1
DOIs
StatePublished - Jan 1992
Externally publishedYes

ASJC Scopus subject areas

  • Modeling and Simulation
  • Physics and Astronomy(all)
  • Computational Mathematics
  • Applied Mathematics

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