Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Investigation of wooden floor junction in terms of sound wave propagation

Bard, Delphine LU (2009) 16th International Congress on Sound and Vibration 2009, ICSV 2009 3. p.1306-1311
Abstract

In modern building construction, where light weight structures are preferred for cost reasons, the sound transmission is often a problem to be considered carefully, hence the many studies addressing this issue. Various modal methods are frequently used to investigate the vibration pattern of light weight building structures in the low frequency range. The experimental determination of time average transmission and reflection coefficient has been developed for a wooden floor. In this investigation the wave approach is combined with the continuity equation. By doing so, both the flexural wave propagation and the in-plane wave motion can be taken into account. The mismatch impedance is also an important factor, since there is a change of... (More)

In modern building construction, where light weight structures are preferred for cost reasons, the sound transmission is often a problem to be considered carefully, hence the many studies addressing this issue. Various modal methods are frequently used to investigate the vibration pattern of light weight building structures in the low frequency range. The experimental determination of time average transmission and reflection coefficient has been developed for a wooden floor. In this investigation the wave approach is combined with the continuity equation. By doing so, both the flexural wave propagation and the in-plane wave motion can be taken into account. The mismatch impedance is also an important factor, since there is a change of material at the junction, and is therefore included in this study. The scattering matrix formulation is used to separate the transmitted wave and the reflected wave as the structural wave propagates towards a junction, but also to calculate the corresponding transmission and reflection coefficients. One type of junction has been studied with the help of accelerometer matrices: the T junction of a floor structure, together with its reinforcement beams. The experimental results are presented and commented.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
16th International Congress on Sound and Vibration 2009, ICSV 2009
volume
3
pages
6 pages
publisher
The International Institute of Acoustics and Vibration
conference name
16th International Congress on Sound and Vibration 2009, ICSV 2009
conference location
Krakow, Poland
conference dates
2009-07-05 - 2009-07-09
external identifiers
  • scopus:84871416027
ISBN
9781615677368
language
English
LU publication?
yes
id
d5a7ef91-d1f0-49c7-9dd7-75dba8317328
date added to LUP
2019-05-21 15:32:48
date last changed
2021-06-16 03:21:11
@inproceedings{d5a7ef91-d1f0-49c7-9dd7-75dba8317328,
  abstract     = {<p>In modern building construction, where light weight structures are preferred for cost reasons, the sound transmission is often a problem to be considered carefully, hence the many studies addressing this issue. Various modal methods are frequently used to investigate the vibration pattern of light weight building structures in the low frequency range. The experimental determination of time average transmission and reflection coefficient has been developed for a wooden floor. In this investigation the wave approach is combined with the continuity equation. By doing so, both the flexural wave propagation and the in-plane wave motion can be taken into account. The mismatch impedance is also an important factor, since there is a change of material at the junction, and is therefore included in this study. The scattering matrix formulation is used to separate the transmitted wave and the reflected wave as the structural wave propagates towards a junction, but also to calculate the corresponding transmission and reflection coefficients. One type of junction has been studied with the help of accelerometer matrices: the T junction of a floor structure, together with its reinforcement beams. The experimental results are presented and commented.</p>},
  author       = {Bard, Delphine},
  booktitle    = {16th International Congress on Sound and Vibration 2009, ICSV 2009},
  isbn         = {9781615677368},
  language     = {eng},
  month        = {12},
  pages        = {1306--1311},
  publisher    = {The International Institute of Acoustics and Vibration},
  title        = {Investigation of wooden floor junction in terms of sound wave propagation},
  volume       = {3},
  year         = {2009},
}