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Challenges for acoustic calculation models in "Silent Timber Build", Part 2

Kouyoumji, Jean Luc; Bard, Delphine LU ; Borello, Gérard and Guigou, Catherine (2014) 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 p.3054-3061
Abstract

The project "Silent Timber Build" will develop new prediction tools for timber structures. There are several challenges that have to be overcome to provide a full prediction tool. The differences in weight, stiffness and density for wooden structures compared to traditional, heavy and more homogeneous structural material have repercussions on how the sound propagates throughout the structures, affecting the sound and vibration insulation performance and also theories to be used in prediction models. The project will use Finite element simulations (FEM) and Statistical Energy Analysis (SEA) approaches to predict acoustical behavior of light weight timber constructions. This article, following another article Part 1, will focus on medium... (More)

The project "Silent Timber Build" will develop new prediction tools for timber structures. There are several challenges that have to be overcome to provide a full prediction tool. The differences in weight, stiffness and density for wooden structures compared to traditional, heavy and more homogeneous structural material have repercussions on how the sound propagates throughout the structures, affecting the sound and vibration insulation performance and also theories to be used in prediction models. The project will use Finite element simulations (FEM) and Statistical Energy Analysis (SEA) approaches to predict acoustical behavior of light weight timber constructions. This article, following another article Part 1, will focus on medium and high frequency range calculations. Statistical methods will be used in the medium and high frequency, where the acoustic performance of wooden building components (walls and floors) is generally limited by the presence of structural links and couplings. Statistical Energy Analysis (SEA) has proven to be an efficient approach, providing robust vibroacoustic models in this frequency region. The extension of statistical methods towards the low frequencies has to be evaluated, especially regarding time responses of impact noise on floor systems. For full-scale building, Virtual SEA method will be used as well as analytic SEA approach in frequencies low enough in order to optimize the overlap to FEM.

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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
keywords
FEM, Insulation, Modeling, SEA, Sound, Transmission, VSEA
host publication
43rd International Congress on Noise Control Engineering (INTERNOISE 2014)
editor
Davy, John; Burgess, Marion; Don, Charles; Dowsett, Liz; McMinn, Terry; Broner, Norm; ; ; ; ; and
pages
3054 - 3061
publisher
Australian Acoustical Society
conference name
43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
conference location
Melbourne, Australia
conference dates
2014-11-16 - 2014-11-19
external identifiers
  • scopus:84923574469
ISBN
9781634398091
9780909882037
language
English
LU publication?
yes
id
470f4d4e-e66e-4172-bfb5-167df55f34e1
date added to LUP
2019-05-21 15:24:55
date last changed
2019-06-12 13:08:56
@inproceedings{470f4d4e-e66e-4172-bfb5-167df55f34e1,
  abstract     = {<p>The project "Silent Timber Build" will develop new prediction tools for timber structures. There are several challenges that have to be overcome to provide a full prediction tool. The differences in weight, stiffness and density for wooden structures compared to traditional, heavy and more homogeneous structural material have repercussions on how the sound propagates throughout the structures, affecting the sound and vibration insulation performance and also theories to be used in prediction models. The project will use Finite element simulations (FEM) and Statistical Energy Analysis (SEA) approaches to predict acoustical behavior of light weight timber constructions. This article, following another article Part 1, will focus on medium and high frequency range calculations. Statistical methods will be used in the medium and high frequency, where the acoustic performance of wooden building components (walls and floors) is generally limited by the presence of structural links and couplings. Statistical Energy Analysis (SEA) has proven to be an efficient approach, providing robust vibroacoustic models in this frequency region. The extension of statistical methods towards the low frequencies has to be evaluated, especially regarding time responses of impact noise on floor systems. For full-scale building, Virtual SEA method will be used as well as analytic SEA approach in frequencies low enough in order to optimize the overlap to FEM.</p>},
  author       = {Kouyoumji, Jean Luc and Bard, Delphine and Borello, Gérard and Guigou, Catherine},
  editor       = {Davy, John and Burgess, Marion and Don, Charles and Dowsett, Liz and McMinn, Terry and Broner, Norm},
  isbn         = {9781634398091},
  keyword      = {FEM,Insulation,Modeling,SEA,Sound,Transmission,VSEA},
  language     = {eng},
  location     = {Melbourne, Australia},
  month        = {01},
  pages        = {3054--3061},
  publisher    = {Australian Acoustical Society},
  title        = {Challenges for acoustic calculation models in "Silent Timber Build", Part 2},
  year         = {2014},
}