Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Improved low-frequency performance of cross-laminated timber floor panels by informed material selection

Persson, Peter LU ; Flodén, Ola LU ; Danielsson, Henrik LU orcid ; Peplow, Andrew LU orcid and Andersen, Lars Vabbersgaard (2021) In Applied Acoustics 179.
Abstract

The paper demonstrates improved structural low-frequency vibroacoustic performance of cross-laminated timber (CLT) floor panels by informed selection of the wood material. The use of wood species and strength classes that are not traditionally assigned to CLT panels was investigated in order to study their influence on dynamic characteristics and vibroacoustic response metrics. The potential of each of the orthotropic material properties to alternate the vibration response was examined to determine the governing parameters of the low-frequency vibroacoustic performance. The effects on transfer mobility response functions, and eigenfrequencies and mode shapes were used for a rigorous performance study of the panels. It was found that... (More)

The paper demonstrates improved structural low-frequency vibroacoustic performance of cross-laminated timber (CLT) floor panels by informed selection of the wood material. The use of wood species and strength classes that are not traditionally assigned to CLT panels was investigated in order to study their influence on dynamic characteristics and vibroacoustic response metrics. The potential of each of the orthotropic material properties to alternate the vibration response was examined to determine the governing parameters of the low-frequency vibroacoustic performance. The effects on transfer mobility response functions, and eigenfrequencies and mode shapes were used for a rigorous performance study of the panels. It was found that using laminations with stiffness properties typical for hardwoods ash, beech, and birch can significantly improve the performance of a CLT floor panel, and they outperform laminations of typical softwood strength classes.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cross-laminated timber (CLT), Finite element method, Floor panels, Floor vibrations, Strength classes, Vibroacoustic response, Wood species
in
Applied Acoustics
volume
179
article number
108017
publisher
Elsevier
external identifiers
  • scopus:85103275256
ISSN
0003-682X
DOI
10.1016/j.apacoust.2021.108017
language
English
LU publication?
yes
id
d13f2b27-f851-4578-ae04-f926c3775df1
date added to LUP
2021-04-05 10:26:01
date last changed
2022-04-27 01:14:57
@article{d13f2b27-f851-4578-ae04-f926c3775df1,
  abstract     = {{<p>The paper demonstrates improved structural low-frequency vibroacoustic performance of cross-laminated timber (CLT) floor panels by informed selection of the wood material. The use of wood species and strength classes that are not traditionally assigned to CLT panels was investigated in order to study their influence on dynamic characteristics and vibroacoustic response metrics. The potential of each of the orthotropic material properties to alternate the vibration response was examined to determine the governing parameters of the low-frequency vibroacoustic performance. The effects on transfer mobility response functions, and eigenfrequencies and mode shapes were used for a rigorous performance study of the panels. It was found that using laminations with stiffness properties typical for hardwoods ash, beech, and birch can significantly improve the performance of a CLT floor panel, and they outperform laminations of typical softwood strength classes.</p>}},
  author       = {{Persson, Peter and Flodén, Ola and Danielsson, Henrik and Peplow, Andrew and Andersen, Lars Vabbersgaard}},
  issn         = {{0003-682X}},
  keywords     = {{Cross-laminated timber (CLT); Finite element method; Floor panels; Floor vibrations; Strength classes; Vibroacoustic response; Wood species}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Applied Acoustics}},
  title        = {{Improved low-frequency performance of cross-laminated timber floor panels by informed material selection}},
  url          = {{http://dx.doi.org/10.1016/j.apacoust.2021.108017}},
  doi          = {{10.1016/j.apacoust.2021.108017}},
  volume       = {{179}},
  year         = {{2021}},
}