Transient vibration and sound radiation of a stiffened plate

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8 Citations (Scopus)

Abstract

The transient vibration and sound radiation (TVSR) of a stiffened plate was investigated using the time-domain finite element method and time-domain boundary element method. A four-noded stiffened-plate element was adopted in this method; this allowed the plate to have arbitrary elastic boundary conditions and the stiffeners with any shape to be located at arbitrary positions inside the plate. The in-plane deformation of the plate was taken into account. The transient vibration predicted by the present approach showed a good agreement with earlier published results. The proposed method was subsequently applied to a parametric study that examined the effects of the stiffeners on the TVSR of a window, which is a typical plate structure. The results showed that the stiffeners (or their locations) notably influenced the window's TVSR responses, thereby demonstrating the possibility of using appropriate stiffeners to improve the transient vibration and noise isolation performance of a practical window.
Original languageEnglish
Pages (from-to)1378-1385
Number of pages8
JournalJVC/Journal of Vibration and Control
Volume19
Issue number9
DOIs
Publication statusPublished - 1 Jul 2013

Keywords

  • Boundary condition
  • stiffener
  • transient sound radiation
  • transient vibration
  • window

ASJC Scopus subject areas

  • Materials Science(all)
  • Automotive Engineering
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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