Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study
This paper analyses the influence of rolling stock dynamics on ground-borne vibration levels. Four vehicle types (Thalys, German ICE, Eurostar, and Belgian freight trains) are investigated using a multibody approach. First, a numerical model is constructed using a flexible track on which the vehicle...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/142807 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545538611871744 |
|---|---|
| author | Georges Kouroussis David P. Connolly Konstantinos Vogiatzis Olivier Verlinden |
| author_facet | Georges Kouroussis David P. Connolly Konstantinos Vogiatzis Olivier Verlinden |
| author_sort | Georges Kouroussis |
| collection | DOAJ |
| description | This paper analyses the influence of rolling stock dynamics on ground-borne vibration levels. Four vehicle types (Thalys, German ICE, Eurostar, and Belgian freight trains) are investigated using a multibody approach. First, a numerical model is constructed using a flexible track on which the vehicles traverse at constant speed. A two-step approach is used to simulate ground wave propagation which is analysed at various distances from the track. This approach offers a new insight because the train and track are fully coupled. Therefore rail unevenness or other irregularity on the rail/wheel surface can be accurately modelled. Vehicle speed is analysed and the frequency spectrums of track and soil responses are also assessed to investigate different excitation mechanisms, such as carriage periodicities. To efficiently quantify train effects, a new
(normalised) metric, defined as the ratio between the peak particle velocity and the nominal axle load, is introduced for a comparison of dynamic excitation. It is concluded that rolling stock dynamics have a significant influence on the free field vibrations at low frequencies, whereas high frequencies are dominated by the presence of track unevenness. |
| format | Article |
| id | doaj-art-c1e38a3daad94c31b6a01f4552faec55 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-c1e38a3daad94c31b6a01f4552faec552025-02-03T07:25:30ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/142807142807Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical StudyGeorges Kouroussis0David P. Connolly1Konstantinos Vogiatzis2Olivier Verlinden3Faculty of Engineering, Department of Theoretical Mechanics, Dynamics and Vibrations, University of Mons, Place du Parc 20, 7000 Mons, BelgiumInstitute for Infrastructure and Environment, School of Energy, Geoscience, Infrastructure & Society, Heriot-Watt University, Edinburgh EH14 4AS, UKLaboratory of Transportation Environmental Acoustics (LTEA), School of the Civil Engineering, Transportation Department, University of Thessaly, Pedion Areos, 383 34 Volos, GreeceFaculty of Engineering, Department of Theoretical Mechanics, Dynamics and Vibrations, University of Mons, Place du Parc 20, 7000 Mons, BelgiumThis paper analyses the influence of rolling stock dynamics on ground-borne vibration levels. Four vehicle types (Thalys, German ICE, Eurostar, and Belgian freight trains) are investigated using a multibody approach. First, a numerical model is constructed using a flexible track on which the vehicles traverse at constant speed. A two-step approach is used to simulate ground wave propagation which is analysed at various distances from the track. This approach offers a new insight because the train and track are fully coupled. Therefore rail unevenness or other irregularity on the rail/wheel surface can be accurately modelled. Vehicle speed is analysed and the frequency spectrums of track and soil responses are also assessed to investigate different excitation mechanisms, such as carriage periodicities. To efficiently quantify train effects, a new (normalised) metric, defined as the ratio between the peak particle velocity and the nominal axle load, is introduced for a comparison of dynamic excitation. It is concluded that rolling stock dynamics have a significant influence on the free field vibrations at low frequencies, whereas high frequencies are dominated by the presence of track unevenness.http://dx.doi.org/10.1155/2015/142807 |
| spellingShingle | Georges Kouroussis David P. Connolly Konstantinos Vogiatzis Olivier Verlinden Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study Shock and Vibration |
| title | Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study |
| title_full | Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study |
| title_fullStr | Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study |
| title_full_unstemmed | Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study |
| title_short | Modelling the Environmental Effects of Railway Vibrations from Different Types of Rolling Stock: A Numerical Study |
| title_sort | modelling the environmental effects of railway vibrations from different types of rolling stock a numerical study |
| url | http://dx.doi.org/10.1155/2015/142807 |
| work_keys_str_mv | AT georgeskouroussis modellingtheenvironmentaleffectsofrailwayvibrationsfromdifferenttypesofrollingstockanumericalstudy AT davidpconnolly modellingtheenvironmentaleffectsofrailwayvibrationsfromdifferenttypesofrollingstockanumericalstudy AT konstantinosvogiatzis modellingtheenvironmentaleffectsofrailwayvibrationsfromdifferenttypesofrollingstockanumericalstudy AT olivierverlinden modellingtheenvironmentaleffectsofrailwayvibrationsfromdifferenttypesofrollingstockanumericalstudy |