Anechoic wind tunnel tests on high-speed train bogie aerodynamic noise
Anechoic wind tunnel tests on high-speed train bogie aerodynamic noise
Aerodynamic noise becomes a significant noise source at speeds normally reached by high-speed trains. The train bogies are identified as important sources of aerodynamic noise. Due to the difficulty to assess this noise source carrying out field tests, wind tunnel tests offer many advantages. Tests were performed in the large-scale low-noise anechoic wind tunnel at Maibara, Japan, using a 1/7 scale train car and bogie model for a range of flow speeds between 50, 76, 89 and 100 m/s. The dependence of the aerodynamic noise from the bogie region on different factors has been studied for different bogie configurations and inflow conditions representing different positions of the bogie along the train. The speed dependence and the noise directivity have also been assessed. The results show the particular importance of the components exposed to the free flow, whereas those shielded within the bogie cavity are shown to radiate much less noise.
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Latorre Iglesias, E.
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Thompson, D.
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Smith, M.
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Kitagawa, T.
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Yamazaki, N.
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Latorre Iglesias, E.
3cdb7920-9f71-48fa-8f09-34557e5ce9a4
Thompson, D.
bca37fd3-d692-4779-b663-5916b01edae5
Smith, M.
1bc8608d-0178-4793-8f73-46a6c6b9b279
Kitagawa, T.
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Yamazaki, N.
fd4674d7-5f4b-45a4-bbc9-5bff3f916a22
Latorre Iglesias, E., Thompson, D., Smith, M., Kitagawa, T. and Yamazaki, N.
(2016)
Anechoic wind tunnel tests on high-speed train bogie aerodynamic noise.
International Journal of Rail Transportation, .
(doi:10.1080/23248378.2016.1274685).
Abstract
Aerodynamic noise becomes a significant noise source at speeds normally reached by high-speed trains. The train bogies are identified as important sources of aerodynamic noise. Due to the difficulty to assess this noise source carrying out field tests, wind tunnel tests offer many advantages. Tests were performed in the large-scale low-noise anechoic wind tunnel at Maibara, Japan, using a 1/7 scale train car and bogie model for a range of flow speeds between 50, 76, 89 and 100 m/s. The dependence of the aerodynamic noise from the bogie region on different factors has been studied for different bogie configurations and inflow conditions representing different positions of the bogie along the train. The speed dependence and the noise directivity have also been assessed. The results show the particular importance of the components exposed to the free flow, whereas those shielded within the bogie cavity are shown to radiate much less noise.
Text
Anechoic wind tunnel tests on high-speed train bogie aerodynamic noise-FINAL.pdf
- Accepted Manuscript
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Accepted/In Press date: 16 December 2016
e-pub ahead of print date: 29 December 2016
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 404103
URI: http://eprints.soton.ac.uk/id/eprint/404103
ISSN: 2324-8378
PURE UUID: 56764399-cddc-4d04-adec-be417623cdb2
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Date deposited: 22 Dec 2016 09:50
Last modified: 16 Mar 2024 02:54
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Contributors
Author:
E. Latorre Iglesias
Author:
M. Smith
Author:
T. Kitagawa
Author:
N. Yamazaki
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