The effects of fluid loading and elastic supports on the transmission of low-frequency noise through a single-pane window

Z. Yu, K. M. Li, D. Y. Ou, Cheuk Ming Mak

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

The transmission of low frequency noise (LFN) through a structural element is explored in the current study by coupling the finite element method (FEM) with the boundary element formulation (BEM). The techniques of component mode synthesis are applied to adjust the stiffness matrix in the FEM formulation. The effect of the elastic boundary conditions on the transmission of sound through a rectangular window is then investigated numerically. Parametric studies have been carried out to examine the effects of natural frequencies, fluid loading and dimensions of the elastic structures on the transmission of LFN. The coupled FEM/BEM formulation is particularly useful to study the structural responses due to LFN below 200 Hz because relevant parametric studies can be conducted numerically avoiding the need of performing tedious and expensive experimental measurements. It has been demonstrated in the numerical simulations that the effects of fluid loading and elastic mounting conditions are particularly important for computing the transmission of airborne excitations through elastic windows with frequency below 125 Hz.
Original languageEnglish
Pages (from-to)187-200
Number of pages14
JournalNoise Control Engineering Journal
Volume58
Issue number2
DOIs
Publication statusPublished - 1 Mar 2010

ASJC Scopus subject areas

  • Building and Construction
  • Automotive Engineering
  • Aerospace Engineering
  • Acoustics and Ultrasonics
  • Mechanical Engineering
  • Public Health, Environmental and Occupational Health
  • Industrial and Manufacturing Engineering

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