A finite element solution of structure-borne sound attenuation for a lightweight timber floor
(2008) In Building Acoustics 15(2). p.137-152- Abstract
Structure-borne sound attenuation of lightweight timber floor structures has been investigated by high-resolution numerical calculation methods. Two models have been studied both experimentally and numerically. The first considers a continuous chipboard plate and a supporting beam. The second considers two plates that are fastened on one beam. Damping effects, which arise from the two different discontinuities, are included. The real-valued modulus of elasticity is replaced with a complex value. In the calculations, the orthotropic material characteristics of the building material have also been taken into account. The results from the calculations and laboratory measurement confirm that the attenuation rate is highly dependent on the... (More)
Structure-borne sound attenuation of lightweight timber floor structures has been investigated by high-resolution numerical calculation methods. Two models have been studied both experimentally and numerically. The first considers a continuous chipboard plate and a supporting beam. The second considers two plates that are fastened on one beam. Damping effects, which arise from the two different discontinuities, are included. The real-valued modulus of elasticity is replaced with a complex value. In the calculations, the orthotropic material characteristics of the building material have also been taken into account. The results from the calculations and laboratory measurement confirm that the attenuation rate is highly dependent on the excitation location, if all the other parameters remain the same.
(Less)
- author
- Bard, D. LU ; Sonnerup, J. LU and Sandberg, G. LU
- organization
- publishing date
- 2008-06-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Damping, Finite element formulations, Structure-borne sound, T junctions
- in
- Building Acoustics
- volume
- 15
- issue
- 2
- pages
- 16 pages
- publisher
- Multi-Science Publishing
- external identifiers
-
- scopus:70949105033
- ISSN
- 1351-010X
- DOI
- 10.1260/135101008785082498
- language
- English
- LU publication?
- yes
- id
- efbf66ef-12aa-4a5e-8fef-ee1853692e99
- date added to LUP
- 2019-05-21 15:34:31
- date last changed
- 2022-01-31 20:32:43
@article{efbf66ef-12aa-4a5e-8fef-ee1853692e99,
abstract = {{<p>Structure-borne sound attenuation of lightweight timber floor structures has been investigated by high-resolution numerical calculation methods. Two models have been studied both experimentally and numerically. The first considers a continuous chipboard plate and a supporting beam. The second considers two plates that are fastened on one beam. Damping effects, which arise from the two different discontinuities, are included. The real-valued modulus of elasticity is replaced with a complex value. In the calculations, the orthotropic material characteristics of the building material have also been taken into account. The results from the calculations and laboratory measurement confirm that the attenuation rate is highly dependent on the excitation location, if all the other parameters remain the same.</p>}},
author = {{Bard, D. and Sonnerup, J. and Sandberg, G.}},
issn = {{1351-010X}},
keywords = {{Damping; Finite element formulations; Structure-borne sound; T junctions}},
language = {{eng}},
month = {{06}},
number = {{2}},
pages = {{137--152}},
publisher = {{Multi-Science Publishing}},
series = {{Building Acoustics}},
title = {{A finite element solution of structure-borne sound attenuation for a lightweight timber floor}},
url = {{http://dx.doi.org/10.1260/135101008785082498}},
doi = {{10.1260/135101008785082498}},
volume = {{15}},
year = {{2008}},
}