Prediction of ground-borne vibration generated at railway crossings using a hybrid model
Prediction of ground-borne vibration generated at railway crossings using a hybrid model
Railway crossings are an important source of localized ground vibration. Models are required for identifying ways to tackle unacceptable levels of vibration from existing as well as future railway lines. Yet, the use of a prediction model that directly allows for the non-Hertzian wheel-rail contact dynamics and also includes three dimensional calculations of the ground response would be computationally expensive. In order to reduce the computational cost without affecting the accuracy of the predictions, a hybrid approach is proposed for the prediction of ground-borne vibration due to impacts at railway crossings. The approach combines the simulation of the vertical wheel-rail contact force in the time domain and the prediction of ground vibration levels in the far field using a linear wavenumber-frequency-domain approach. The proposed hybrid approach is used to investigate the influence of different vehicle speeds, crossing designs and wheel profiles on predicted ground vibration levels in the free field.
Equivalent rail unevenness, Ground-borne vibration, Hybrid model, Railway crossings
420-428
Ntotsios, Evangelos
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Kostovasilis, Dimitrios
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Thompson, David J.
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Squicciarini, Giacomo
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Bezin, Yann
ab3c46ce-6068-473f-a8cb-9aef699da669
Ntotsios, Evangelos
877c3350-0497-4471-aa97-c101df72e05e
Kostovasilis, Dimitrios
ea6c3649-99fa-41a7-98bc-2f6ad875b050
Thompson, David J.
bca37fd3-d692-4779-b663-5916b01edae5
Squicciarini, Giacomo
c1bdd1f6-a2e8-435c-a924-3e052d3d191e
Bezin, Yann
ab3c46ce-6068-473f-a8cb-9aef699da669
Ntotsios, Evangelos, Kostovasilis, Dimitrios, Thompson, David J., Squicciarini, Giacomo and Bezin, Yann
(2021)
Prediction of ground-borne vibration generated at railway crossings using a hybrid model.
In,
Notes on Numerical Fluid Mechanics and Multidisciplinary Design.
(Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 150)
Springer Cham, .
(doi:10.1007/978-3-030-70289-2_44).
Record type:
Book Section
Abstract
Railway crossings are an important source of localized ground vibration. Models are required for identifying ways to tackle unacceptable levels of vibration from existing as well as future railway lines. Yet, the use of a prediction model that directly allows for the non-Hertzian wheel-rail contact dynamics and also includes three dimensional calculations of the ground response would be computationally expensive. In order to reduce the computational cost without affecting the accuracy of the predictions, a hybrid approach is proposed for the prediction of ground-borne vibration due to impacts at railway crossings. The approach combines the simulation of the vertical wheel-rail contact force in the time domain and the prediction of ground vibration levels in the far field using a linear wavenumber-frequency-domain approach. The proposed hybrid approach is used to investigate the influence of different vehicle speeds, crossing designs and wheel profiles on predicted ground vibration levels in the free field.
Text
IWRN13_Ntotsios_etal_final
- Accepted Manuscript
More information
e-pub ahead of print date: 9 April 2021
Additional Information:
Funding Information:
Acknowledgements. The financial support by the EPSRC under the grant EP/M025276/1 is gratefully acknowledged.
Publisher Copyright:
© 2021, Springer Nature Switzerland AG.
Keywords:
Equivalent rail unevenness, Ground-borne vibration, Hybrid model, Railway crossings
Identifiers
Local EPrints ID: 467649
URI: http://eprints.soton.ac.uk/id/eprint/467649
ISSN: 1612-2909
PURE UUID: b79c2f14-7159-487e-8a01-4214a34b602e
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Date deposited: 18 Jul 2022 18:11
Last modified: 18 Mar 2024 03:26
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Contributors
Author:
Dimitrios Kostovasilis
Author:
Yann Bezin
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