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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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The measurement and analysis of dynamic load applied on railway switches
Růžková, Jitka ; Pazdera, Luboš (referee) ; Smutný, Jaroslav (advisor)
This bachelor's thesis deals with suggestion method to measurement, aplication this method of the real measurement and evaluation. The theoretical part contains basic informations about dynamic effects of wheel impacts and vibrations. The measurement procedur is described the two crossings of the same type constructions (monoblock crossing with the running surfaces explosive hardened) with different fastening (elastic rail fastening and fastening rail system). The practical part contains an analysis which is made in time and frequency. The point of thesis is verification of the function elastic fastening crossing in switches in comparison with rail fastening.
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The measurement and analysis of dynamic load applied on railway switches
Růžková, Jitka ; Pazdera, Luboš (referee) ; Smutný, Jaroslav (advisor)
This bachelor's thesis deals with suggestion method to measurement, aplication this method of the real measurement and evaluation. The theoretical part contains basic informations about dynamic effects of wheel impacts and vibrations. The measurement procedur is described the two crossings of the same type constructions (monoblock crossing with the running surfaces explosive hardened) with different fastening (elastic rail fastening and fastening rail system). The practical part contains an analysis which is made in time and frequency. The point of thesis is verification of the function elastic fastening crossing in switches in comparison with rail fastening.
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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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