Vibroacoustic analysis of a finite cylindrical shell with internal floor partition

J. Missaoui, Li Cheng

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31 Citations (Scopus)

Abstract

Vibroacoustic analysis of a finite isotropic thin cylindrical shell with an internal floor partition is presented in the present paper. A general formulation is developed based on a variational approach in which the structural coupling between sub-structures is simulated using the artificial spring technique, while the acoustic field is computed by an integro-modal approach. For validation purposes, numerical results are compared with experimental data. Numerical analysis is performed to show the structural and acoustical effects of the floor on the internal pressure field. Further analysis is made to identify contributions of individual structural modes to sound radiation. The present paper illustrates how the two previously established methods (artificial spring technique and the integro-modal approach) can be combined into a vibroacoustic model in the prediction of the structural acoustic response of complex shaped cavities surrounded by structural boundaries.
Original languageEnglish
Pages (from-to)101-123
Number of pages23
JournalJournal of Sound and Vibration
Volume226
Issue number1
DOIs
Publication statusPublished - 9 Sep 1999
Externally publishedYes

ASJC Scopus subject areas

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

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