Investigation of train-induced vibration and noise from a steel-concrete composite railway bridge using a hybrid finite element-statistical energy analysis method
Investigation of train-induced vibration and noise from a steel-concrete composite railway bridge using a hybrid finite element-statistical energy analysis method
In this study a hybrid finite element-statistical energy analysis (FE-SEA) method is used to investigate the structure-borne noise of a steel-concrete composite railway bridge. The rail is represented by an infinite Timoshenko beam connected to the sleepers which are regarded as finite Timoshenko beams supported in ballast. The fasteners and ballast are simplified as a series of springs with complex stiffness. This model allows the receptance of the track to be determined. The wheel-rail forces are computed in the frequency domain from the contact-filtered roughness and the receptances of the wheel, track, and contact. The forces transmitted to the bridge are determined by substituting the wheel-rail forces into the equation of motion for the track. This model could also be applied to a slab track mounted on a bridge. A hybrid FE-SEA method is introduced in which FE is used to model the concrete deck and SEA is used to model the steel girders. This enables the computation of the vibration and noise of the composite railway bridge. The proposed method is verified by comparing its predictions with field measurements. The structure-borne noise level of the bridge is found to increase with train speed v by approximately 20lg(v). It is shown that the adjacent spans in a multi-span bridge can be ignored in deriving the bridge-borne noise at receiver points in the middle of the main span, provided that the distance to the track centreline is less than 0.3 times the length of the main span.
composite bridge, geometrical attenuation, hybrid FE-SEA method, sound contribution, structure-borne noise
1-21
Liu, Quanmin
9d9b1df3-c9ea-4c75-9cb5-efb60d79a3fb
Thompson, David
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Xu, Peipei
0a67e9c0-d8ee-4611-9466-03c1b0bd65a8
Feng, Qingsong
47394d62-3b3e-44d3-aa45-9248328d0fd1
Li, Xiaozhen
096a5842-fafb-44ca-a1d0-046d630b1d2e
14 April 2020
Liu, Quanmin
9d9b1df3-c9ea-4c75-9cb5-efb60d79a3fb
Thompson, David
bca37fd3-d692-4779-b663-5916b01edae5
Xu, Peipei
0a67e9c0-d8ee-4611-9466-03c1b0bd65a8
Feng, Qingsong
47394d62-3b3e-44d3-aa45-9248328d0fd1
Li, Xiaozhen
096a5842-fafb-44ca-a1d0-046d630b1d2e
Liu, Quanmin, Thompson, David, Xu, Peipei, Feng, Qingsong and Li, Xiaozhen
(2020)
Investigation of train-induced vibration and noise from a steel-concrete composite railway bridge using a hybrid finite element-statistical energy analysis method.
Journal of Sound and Vibration, 471, , [115197].
(doi:10.1016/j.jsv.2020.115197).
Abstract
In this study a hybrid finite element-statistical energy analysis (FE-SEA) method is used to investigate the structure-borne noise of a steel-concrete composite railway bridge. The rail is represented by an infinite Timoshenko beam connected to the sleepers which are regarded as finite Timoshenko beams supported in ballast. The fasteners and ballast are simplified as a series of springs with complex stiffness. This model allows the receptance of the track to be determined. The wheel-rail forces are computed in the frequency domain from the contact-filtered roughness and the receptances of the wheel, track, and contact. The forces transmitted to the bridge are determined by substituting the wheel-rail forces into the equation of motion for the track. This model could also be applied to a slab track mounted on a bridge. A hybrid FE-SEA method is introduced in which FE is used to model the concrete deck and SEA is used to model the steel girders. This enables the computation of the vibration and noise of the composite railway bridge. The proposed method is verified by comparing its predictions with field measurements. The structure-borne noise level of the bridge is found to increase with train speed v by approximately 20lg(v). It is shown that the adjacent spans in a multi-span bridge can be ignored in deriving the bridge-borne noise at receiver points in the middle of the main span, provided that the distance to the track centreline is less than 0.3 times the length of the main span.
Text
Quanmin Liu JSV 2020 Final version of the paper
- Accepted Manuscript
More information
Accepted/In Press date: 14 January 2020
e-pub ahead of print date: 20 January 2020
Published date: 14 April 2020
Additional Information:
Funding Information:
This work was supported by the National Natural Science Foundation of China (grant numbers 51608201 , 51878277 and 51878565 ), the Education Department of Jiangxi Province, China (grant number GJJ 180295 ) and the China Scholarship Council . All data published in this paper are openly available from the University of Southampton repository at https://doi.org/10.5258/SOTON/D1202 .
Publisher Copyright:
© 2020 Elsevier Ltd
Keywords:
composite bridge, geometrical attenuation, hybrid FE-SEA method, sound contribution, structure-borne noise
Identifiers
Local EPrints ID: 437269
URI: http://eprints.soton.ac.uk/id/eprint/437269
ISSN: 0022-460X
PURE UUID: 76c5056c-a635-4795-8fe7-7bf02bbb94cd
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Date deposited: 23 Jan 2020 17:34
Last modified: 17 Mar 2024 05:15
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Contributors
Author:
Quanmin Liu
Author:
Peipei Xu
Author:
Qingsong Feng
Author:
Xiaozhen Li
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