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

TY - JOUR

T1 - Improved low-frequency performance of cross-laminated timber floor panels by informed material selection

AU - Persson, Peter

AU - Flodén, Ola

AU - Danielsson, Henrik

AU - Peplow, Andrew

AU - Andersen, Lars Vabbersgaard

N1 - Publisher Copyright: © 2021 The Authors

PY - 2021/8

Y1 - 2021/8

N2 - The paper demonstrates improved structural low-frequency vibroacoustic performance of crosslaminated 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. (C) 2021 The Authors. Published by Elsevier Ltd.

AB - The paper demonstrates improved structural low-frequency vibroacoustic performance of crosslaminated 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. (C) 2021 The Authors. Published by Elsevier Ltd.

U2 - 10.1016/j.apacoust.2021.108017

DO - 10.1016/j.apacoust.2021.108017

M3 - Journal article

AN - SCOPUS:85103275256

SN - 0003-682X

VL - 179

JO - Applied Acoustics

JF - Applied Acoustics

M1 - 108017

ER -