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Analysis of the dynamic effects in the turnout
Vukušič, Ivan ; Zvěřina, Pavel (referee) ; Hřebačka,, Milan (referee) ; Smutný, Jaroslav (advisor)
The vibration of the railway superstructure is mainly influenced by its quality, by the operational technical conditions, climatic phenomena and above all by the dynamic load by the pair of wheels of the rail vehicles and also by the quality of railway subgrade. Simultaneously, the dynamic parameters also depend on the speed of rail vehicles, on the arrangement of axles, their spring mounting and on the spring mounting of the body casing or on the weight acting on the axle, and last but not least, also on the quality of the running surface of the wheel tyre. The dynamic effects of sets of wagons are transferred through the rails to the rail pads below the base of the rails, then to the sleepers or bearers and fastening system, then to the ballast bed and also to the superstructure construction. This fact applies especially for turnout structures. In turnout rigidity is changed and also there is a place where the wheel passes over a gap (in case of fixed crossings). In particular of above mentioned reasons, turnout is a place where high dynamic effects occurre and that is why often defects occurre. Dissertation thesis will be focused on measurement and analysis of the dynamic effects on turnout. The point of the thesis will be updating recent system (observing of the geometrical parameters and wear of the rails in turnouts) for dynamic effect observe. Methodology of the measurement and convenient mathematical apparatus for analysing dynamic effect will be proposed.
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Upgrading of Litice nad Orlicí Railway Station
Šmíd, Jaroslav ; Andratschke, Jan (referee) ; Svoboda, Richard (advisor)
The aim of this study is to design an upgrading of station Litice nad Orlicí to meet current legislation on access of persons with reduced mobility. It is desired platform 150 m long, at least two running tracks, conservation of double-sided connection of siding and a loading track. The work also solve drainage. Two variants of layout were developed, of which one was selected for detailed processing.
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Analysis of the dynamic effects in the turnout
Vukušič, Ivan ; Zvěřina, Pavel (referee) ; Hřebačka,, Milan (referee) ; Smutný, Jaroslav (advisor)
The vibration of the railway superstructure is mainly influenced by its quality, by the operational technical conditions, climatic phenomena and above all by the dynamic load by the pair of wheels of the rail vehicles and also by the quality of railway subgrade. Simultaneously, the dynamic parameters also depend on the speed of rail vehicles, on the arrangement of axles, their spring mounting and on the spring mounting of the body casing or on the weight acting on the axle, and last but not least, also on the quality of the running surface of the wheel tyre. The dynamic effects of sets of wagons are transferred through the rails to the rail pads below the base of the rails, then to the sleepers or bearers and fastening system, then to the ballast bed and also to the superstructure construction. This fact applies especially for turnout structures. In turnout rigidity is changed and also there is a place where the wheel passes over a gap (in case of fixed crossings). In particular of above mentioned reasons, turnout is a place where high dynamic effects occurre and that is why often defects occurre. Dissertation thesis will be focused on measurement and analysis of the dynamic effects on turnout. The point of the thesis will be updating recent system (observing of the geometrical parameters and wear of the rails in turnouts) for dynamic effect observe. Methodology of the measurement and convenient mathematical apparatus for analysing dynamic effect will be proposed.
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|
|
Upgrading of Litice nad Orlicí Railway Station
Šmíd, Jaroslav ; Andratschke, Jan (referee) ; Svoboda, Richard (advisor)
The aim of this study is to design an upgrading of station Litice nad Orlicí to meet current legislation on access of persons with reduced mobility. It is desired platform 150 m long, at least two running tracks, conservation of double-sided connection of siding and a loading track. The work also solve drainage. Two variants of layout were developed, of which one was selected for detailed processing.
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