Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dynamic Analysis of Railway Track Response Subjected to Train Moving Loads Using Finite Element Simulation
https://orcid.org/http://orcid.org/0000-0002-7437-7690
https://orcid.org/http://orcid.org/0000-0001-8267-4890
In recent years, as train speeds and axle loads have increased, rail operators have been able to transport more goods and passengers over longer distances in shorter amounts of time which has led to an increase in the rail traffic density. This created excessive track structural deformation, which has worsened the dynamic issues with train operations. A detailed understanding of the dynamic response of the railway track under moving train loads is important for assessing the track performance and limiting these problems. Although many analytical and numerical studies can be found in the literature, this focuses on either the straight section or the curved section. The whole track layout was rarely considered. In this study, the dynamic response of the railway track in terms of the rail vertical displacement is analyzed by considering the general track path including straight section, curved section, and transition curve. The numerical modeling program ANSYS which is based on the finite element method is used. The influence of some important factors is also examined including the track design, train speeds, and the amplitude of wheel train loads. The results show that the performance of the track is very sensitive to the variation of these parameters, particularly to the variation of the track configuration and the axle load. This study may help to ensure the efficiency of train operations in selecting in more realistic way the optimal track design, the maximum train speed, and the maximum allowable axle mass depending on the vertical track’s resistance.
Dynamic Analysis of Railway Track Response Subjected to Train Moving Loads Using Finite Element Simulation
https://orcid.org/http://orcid.org/0000-0002-7437-7690
https://orcid.org/http://orcid.org/0000-0001-8267-4890
In recent years, as train speeds and axle loads have increased, rail operators have been able to transport more goods and passengers over longer distances in shorter amounts of time which has led to an increase in the rail traffic density. This created excessive track structural deformation, which has worsened the dynamic issues with train operations. A detailed understanding of the dynamic response of the railway track under moving train loads is important for assessing the track performance and limiting these problems. Although many analytical and numerical studies can be found in the literature, this focuses on either the straight section or the curved section. The whole track layout was rarely considered. In this study, the dynamic response of the railway track in terms of the rail vertical displacement is analyzed by considering the general track path including straight section, curved section, and transition curve. The numerical modeling program ANSYS which is based on the finite element method is used. The influence of some important factors is also examined including the track design, train speeds, and the amplitude of wheel train loads. The results show that the performance of the track is very sensitive to the variation of these parameters, particularly to the variation of the track configuration and the axle load. This study may help to ensure the efficiency of train operations in selecting in more realistic way the optimal track design, the maximum train speed, and the maximum allowable axle mass depending on the vertical track’s resistance.
Dynamic Analysis of Railway Track Response Subjected to Train Moving Loads Using Finite Element Simulation
https://orcid.org/http://orcid.org/0000-0002-7437-7690
https://orcid.org/http://orcid.org/0000-0001-8267-4890
In recent years, as train speeds and axle loads have increased, rail operators have been able to transport more goods and passengers over longer distances in shorter amounts of time which has led to an increase in the rail traffic density. This created excessive track structural deformation, which has worsened the dynamic issues with train operations. A detailed understanding of the dynamic response of the railway track under moving train loads is important for assessing the track performance and limiting these problems. Although many analytical and numerical studies can be found in the literature, this focuses on either the straight section or the curved section. The whole track layout was rarely considered. In this study, the dynamic response of the railway track in terms of the rail vertical displacement is analyzed by considering the general track path including straight section, curved section, and transition curve. The numerical modeling program ANSYS which is based on the finite element method is used. The influence of some important factors is also examined including the track design, train speeds, and the amplitude of wheel train loads. The results show that the performance of the track is very sensitive to the variation of these parameters, particularly to the variation of the track configuration and the axle load. This study may help to ensure the efficiency of train operations in selecting in more realistic way the optimal track design, the maximum train speed, and the maximum allowable axle mass depending on the vertical track’s resistance.
Dynamic Analysis of Railway Track Response Subjected to Train Moving Loads Using Finite Element Simulation
Transp. Infrastruct. Geotech.
Rhylane, Hajar (Autor:in) / Ajdour, Mounia (Autor:in)
Transportation Infrastructure Geotechnology ; 11 ; 650-674
01.04.2024
25 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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