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Effect of material parameter variability on vibroacoustic response in wood floors

Persson, Peter LU and Flodén, Ola (2019) In Applied Acoustics 146. p.38-49
Abstract
The use of wood as construction material in multi-story buildings increased in Europe during the last decades. Wood buildings are more sensitive to dynamic loading compared to conventional concrete buildings, especially in terms of vibroacoustic comfort. Furthermore, it is more difficult to predict the accurate response due to dynamic loading for wood buildings. This is due to factors such as a complex structure involving many connections which vary in their mechanical behavior and the variability in the material parameters of wood. In the study, a reduced-order finite element model correlated to measurement data is used to examine the effect of experimentally obtained variability in material parameters on the vibroacoustic response of a... (More)
The use of wood as construction material in multi-story buildings increased in Europe during the last decades. Wood buildings are more sensitive to dynamic loading compared to conventional concrete buildings, especially in terms of vibroacoustic comfort. Furthermore, it is more difficult to predict the accurate response due to dynamic loading for wood buildings. This is due to factors such as a complex structure involving many connections which vary in their mechanical behavior and the variability in the material parameters of wood. In the study, a reduced-order finite element model correlated to measurement data is used to examine the effect of experimentally obtained variability in material parameters on the vibroacoustic response of a wooden floor. The floor is subjected to surface loading. Monte Carlo simulations are conducted and in order to execute the probabilistic analysis in an efficient manner, the use of various sampling techniques is investigated. It was concluded that the variability in material parameters of wood significantly affects the predicted low-frequency vibrations, and thereby also affects the transmission of structure-borne sound. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Acoustics
volume
146
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:85056208967
ISSN
0003-682X
DOI
10.1016/j.apacoust.2018.10.034
language
English
LU publication?
yes
id
02495371-86c2-43a3-86ee-8d972c301243
date added to LUP
2018-11-09 13:13:20
date last changed
2019-02-20 11:35:03
@article{02495371-86c2-43a3-86ee-8d972c301243,
  abstract     = {The use of wood as construction material in multi-story buildings increased in Europe during the last decades. Wood buildings are more sensitive to dynamic loading compared to conventional concrete buildings, especially in terms of vibroacoustic comfort. Furthermore, it is more difficult to predict the accurate response due to dynamic loading for wood buildings. This is due to factors such as a complex structure involving many connections which vary in their mechanical behavior and the variability in the material parameters of wood. In the study, a reduced-order finite element model correlated to measurement data is used to examine the effect of experimentally obtained variability in material parameters on the vibroacoustic response of a wooden floor. The floor is subjected to surface loading. Monte Carlo simulations are conducted and in order to execute the probabilistic analysis in an efficient manner, the use of various sampling techniques is investigated. It was concluded that the variability in material parameters of wood significantly affects the predicted low-frequency vibrations, and thereby also affects the transmission of structure-borne sound.},
  author       = {Persson, Peter and Flodén, Ola},
  issn         = {0003-682X},
  language     = {eng},
  pages        = {38--49},
  publisher    = {Elsevier},
  series       = {Applied Acoustics},
  title        = {Effect of material parameter variability on vibroacoustic response in wood floors},
  url          = {http://dx.doi.org/10.1016/j.apacoust.2018.10.034},
  volume       = {146},
  year         = {2019},
}