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Groundborne railway noise and vibration in buildings: results of a structural and acoustic parametric study

Groundborne railway noise and vibration in buildings: results of a structural and acoustic parametric study
Groundborne railway noise and vibration in buildings: results of a structural and acoustic parametric study

Two parametric studies have been conducted in order to examine the influence of a number of building and room parameters on the groundborne noise and vibration levels in a room. The studies have each utilised a three-dimensional finite element (FE) approach, validated with site measurements. It was found that changing the floor thickness had a limited effect on floor vibration, whereas changing the floor area was found to be more important, due to shifting the floor mode frequencies. Structural damping was shown to be important, and should therefore be specified carefully when modelling building vibration. The FE model of a typical domestic room demonstrated that there is significant variation in groundborne noise at different room positions due to the influence of acoustic modes. It is therefore recommended that the low frequency procedure detailed in ISO 16283-1 be adopted for specifying and measuring groundborne noise in such rooms. The parametric study showed that the room reverberation time, room size and presence of furniture each have a moderate effect on the sound pressure level. Whilst the installation of wall linings was predicted to provide only a marginal improvement in sound pressure level, this effect is dependent on the relative contributions of the wall, ceiling and floor surfaces. Results from the parametric studies are being used to inform semi-empirical prediction formulae for groundborne noise and vibration.

1612-2909
193-204
Springer
Lurcock, D.E.J.
fed639db-25e5-4f27-89ae-515351703805
Thompson, David J.
bca37fd3-d692-4779-b663-5916b01edae5
Bewes, O. G.
ad641452-b531-4044-bf6a-b1aa2e0e919d
Anderson, David
Gautier, Pierre-Etienne
Iida, Masanobu
Nelson, James T.
Thompson, David J.
Tielkes, Thorsten
Towers, David A.
de Vos, Paul
Nielsen, Jens C.O.
Lurcock, D.E.J.
fed639db-25e5-4f27-89ae-515351703805
Thompson, David J.
bca37fd3-d692-4779-b663-5916b01edae5
Bewes, O. G.
ad641452-b531-4044-bf6a-b1aa2e0e919d
Anderson, David
Gautier, Pierre-Etienne
Iida, Masanobu
Nelson, James T.
Thompson, David J.
Tielkes, Thorsten
Towers, David A.
de Vos, Paul
Nielsen, Jens C.O.

Lurcock, D.E.J., Thompson, David J. and Bewes, O. G. (2018) Groundborne railway noise and vibration in buildings: results of a structural and acoustic parametric study. Anderson, David, Gautier, Pierre-Etienne, Iida, Masanobu, Nelson, James T., Thompson, David J., Tielkes, Thorsten, Towers, David A., de Vos, Paul and Nielsen, Jens C.O. (eds.) In Noise and Vibration Mitigation for Rail Transportation Systems. vol. 139, Springer. pp. 193-204 . (doi:10.1007/978-3-319-73411-8_13).

Record type: Conference or Workshop Item (Paper)

Abstract

Two parametric studies have been conducted in order to examine the influence of a number of building and room parameters on the groundborne noise and vibration levels in a room. The studies have each utilised a three-dimensional finite element (FE) approach, validated with site measurements. It was found that changing the floor thickness had a limited effect on floor vibration, whereas changing the floor area was found to be more important, due to shifting the floor mode frequencies. Structural damping was shown to be important, and should therefore be specified carefully when modelling building vibration. The FE model of a typical domestic room demonstrated that there is significant variation in groundborne noise at different room positions due to the influence of acoustic modes. It is therefore recommended that the low frequency procedure detailed in ISO 16283-1 be adopted for specifying and measuring groundborne noise in such rooms. The parametric study showed that the room reverberation time, room size and presence of furniture each have a moderate effect on the sound pressure level. Whilst the installation of wall linings was predicted to provide only a marginal improvement in sound pressure level, this effect is dependent on the relative contributions of the wall, ceiling and floor surfaces. Results from the parametric studies are being used to inform semi-empirical prediction formulae for groundborne noise and vibration.

Full text not available from this repository.

More information

e-pub ahead of print date: 20 May 2018
Published date: 2018
Venue - Dates: 12th International Workshop on Railway Noise, Terrigal, Australia, 2016-09-12 - 2016-09-16

Identifiers

Local EPrints ID: 421367
URI: http://eprints.soton.ac.uk/id/eprint/421367
ISSN: 1612-2909
PURE UUID: 326095ce-79df-4e4c-a527-5b1bd0f15190
ORCID for David J. Thompson: ORCID iD orcid.org/0000-0002-7964-5906

Catalogue record

Date deposited: 06 Jun 2018 16:30
Last modified: 20 Jul 2019 01:16

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