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The effect of modelling acoustic media in cavities of lightweight buildings on the transmission of structural vibrations

Flodén, Ola LU ; Negreira, Juan LU ; Persson, Kent LU and Sandberg, Göran LU (2015) In Engineering Structures 83. p.7-16
Abstract
Determining the dynamic behaviour of lightweight buildings by means of finite element analyses requires models representing the geometry involved in great detail, resulting in systems having many millions of degrees of freedom. It is, therefore, important to avoid unnecessarily detailed models by carefully considering what is essential to include in the models and the level of details required for describing the phenomena of interest accurately. In the study presented here, it was investigated whether or not air and insulation in cavities of multi-storey wood buildings affect the transmission of low-frequency structural vibrations. It was concluded, by means of numerical studies, that including air and insulation in cavities, modelled as... (More)
Determining the dynamic behaviour of lightweight buildings by means of finite element analyses requires models representing the geometry involved in great detail, resulting in systems having many millions of degrees of freedom. It is, therefore, important to avoid unnecessarily detailed models by carefully considering what is essential to include in the models and the level of details required for describing the phenomena of interest accurately. In the study presented here, it was investigated whether or not air and insulation in cavities of multi-storey wood buildings affect the transmission of low-frequency structural vibrations. It was concluded, by means of numerical studies, that including air and insulation in cavities, modelled as acoustic media, affects the transmission from a floor to the underlying ceiling and surrounding walls. (C) 2014 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Structure-acoustic interaction, Porous materials, Vibration, transmission, Lightweight buildings, Finite element method
in
Engineering Structures
volume
83
pages
7 - 16
publisher
Elsevier
external identifiers
  • wos:000347363000002
  • scopus:84911403693
ISSN
1873-7323
DOI
10.1016/j.engstruct.2014.10.037
language
English
LU publication?
yes
id
37356ff3-9ce5-4c55-983c-85d0767c3019 (old id 5076029)
date added to LUP
2015-02-25 17:13:26
date last changed
2017-05-14 03:22:47
@article{37356ff3-9ce5-4c55-983c-85d0767c3019,
  abstract     = {Determining the dynamic behaviour of lightweight buildings by means of finite element analyses requires models representing the geometry involved in great detail, resulting in systems having many millions of degrees of freedom. It is, therefore, important to avoid unnecessarily detailed models by carefully considering what is essential to include in the models and the level of details required for describing the phenomena of interest accurately. In the study presented here, it was investigated whether or not air and insulation in cavities of multi-storey wood buildings affect the transmission of low-frequency structural vibrations. It was concluded, by means of numerical studies, that including air and insulation in cavities, modelled as acoustic media, affects the transmission from a floor to the underlying ceiling and surrounding walls. (C) 2014 Elsevier Ltd. All rights reserved.},
  author       = {Flodén, Ola and Negreira, Juan and Persson, Kent and Sandberg, Göran},
  issn         = {1873-7323},
  keyword      = {Structure-acoustic interaction,Porous materials,Vibration,transmission,Lightweight buildings,Finite element method},
  language     = {eng},
  pages        = {7--16},
  publisher    = {Elsevier},
  series       = {Engineering Structures},
  title        = {The effect of modelling acoustic media in cavities of lightweight buildings on the transmission of structural vibrations},
  url          = {http://dx.doi.org/10.1016/j.engstruct.2014.10.037},
  volume       = {83},
  year         = {2015},
}