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Análisis de los efectos dinámicos que actúan sobre los cambiaviás férreos
Vukušičová, Daniela ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
This thesis is focused on measurement and analysis of dynamic effects on railway turnouts. Two same-type turnouts with different fastening elasticity were chosen. My attention was focused mainly on the crossing part of the turnout, where the highest dynamic impacts occur. The point of the thesis is comparison of the crossing part of turnouts in term of dynamic behaviour and assessment of influence of soft rail pads on spread of dynamic energy through the construction. A part of the thesis is choice of methodology of the measurement and proposal of convenient mathematical apparatus for analysing of the dynamic effects on crossings.
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The analysis of the dynamic and acoustic parameters of the superstructure construction
Bačík, Jakub ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
This diploma thesis is focused on operational testing of selected railway lines with different structures of railway superstructure. For the purposes of measuring were chosen suitable measuring sections on the rail corridor and was designed suitable measuring methodology. Dynamic and acoustic parameters of tested structures were determined on the basis of all tests, which were performed. Suitable mathematic method was chosen for evaluation of tests in time and frequency zone. Part of my work is also compare parameters of the tested structures and recommendations for practice.
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L'analyse expérimentale des paramtres dynamiques du rail grille
Podolník, Adam ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
In terms of deciding on the appropriate use of the railway superstructure assemblies in both the recommendations arising from the theoretical analysis (modeling), as well as recommendations obtained under static and dynamic testing of the finished product play an important role. Such tests can then be applied in the laboratory or in the field. The thesis will be devoted to operational testing of selected track grid structures in situ. For measurement purposes an appropriate measuring point will be chosen and the methodology of measurement will be proposed. In terms of track geometry sections in curves will be selected. On the basis of tests carried out dynamic parameters of structures will be determined. To their evaluation suitable mathematical system will be chosen. It assumes the use of mathematical methods in time and frequency areas. In the thesis there will also be a comparison of the parameters of the tested structures. Based on the measurements it will be a source of recommendations for the practice.
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Analysis of acoustic and vibration parameters from rail transport
Turčíková, Hana ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
This diploma thesis is focused on operational testing of selected railway lines with different structures of superstructure. For the measurement purposes suitable measuring sections in directional curves on the rail corridors were chosen and suitable measuring methodology was designed. Based on all the tests the dynamic and acoustic parameters of tested structures were determined. For the test evaluations suitable mathematic methods in both time and frequency zone was chosen. Part of my work is also to compare the parameters of the tested structures and to make recommendations for practise.
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The analysis of acoustic and dynamic parameters of the track skeleton
Ratislavová, Eva ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
This diploma thesis is focused on experimental measurement and acoustic and dynamic behavior analysis of railway construction with the Y – steel sleepers and their comparison with concrete sleepers. The measurements were taken in situ, in suitable sections of a railway line. These sections meet the requirements of regional railway tracks in the Czech Republic. Monitored parameters were obtained by measuring a response of testing trains and were analyzed using frequency and time analysis. Based on these evaluations, comparisons of particular constructions and their recommendations for practice were made.
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Access to Railway Platform for Wheelchair User
Šafář, Zdeněk ; Tomandl, Vladimír (referee) ; Svoboda, Richard (advisor)
The bachelor’s thesis focuses on wheelchair accessible survey at railway stations. It has been chosen a few different kind of stations which are marked as physically disabled accessible. Railway stations have been thoroughly visited, gauged and explored. The main intention was to solve these problems as an activity chain performed by people at railway stations. It means everything from passengers arrival, do all steps in a station building, to passengers access to platforms and after that getting on the train. Due to large extent of wheelchair accessible, this thesis has only focused on wheelchair users.
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MEASUREMENT OF DYNAMIC PARAMETERS OF TRACK GRID
Podolník, Adam ; Tomandl, Vladimír (referee) ; Smutný, Jaroslav (advisor)
Coupled with theory analyses, various static and dynamic tests carrying out in laboratory or directly on site serve as a basis for selection and comparison of particular rail superstructure parts. It should be noted that the theoretical analysis of the application of mathematical modeling is often based on highly idealized assumptions. The purpose of this bachelor thesis is the experimental analysis of dynamic effects of selected flexible fastening structures without baseplates. Forces induced by the passage of trains have been simulated on a specially prepared samples using inertial exciter. Additional measurements of the dynamic response of structures to shock induced by a modal hammer were also performed. Measurements were performed in the laboratory of ÚPKO and ÚŽKS and in situ.
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