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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Requirements for design and in servce quality of track geometry in relation to interatcion between vehicle and track
 Trejtnar, Radek ; Ižvolt,, Libor (referee) ; Igielski, Vladimír (referee) ; Zvěřina, Pavel (referee) ; Plášek, Otto (advisor)
Aim of the proper track design is build track, which enable smooth run of the vehicle as much as is possible complying with the safety rules and reasonable level of comfort for passengers. However, this track has to be maintainable and the vehicle shouldn’t face unacceptable amount of wear. On the other hand it is clear that it is impossible to build ideal (straight) track because of many environmental and morphological conditions. So the rules for track designing have to be set carefully in order to produce a good track design which meets the conditions mentioned above. The principles for track designing are evaluated with using the results of track test running dynamic behavior of the vehicles in this study. These tests were made for couple vehicles on several track sections. The influence of design parameters on the dynamic behavior are evaluated based on these results. That’s defining one of the basic part interactions between vehicle and track. Evaluation of the quality of track geometry in service has the same or may be higher importance. Limit values as defined in standard ČSN 73 6360-2 was set partially in consideration results of scientific studies, but partially in consideration of as common practice. So that part of this work is verification of the influence of tolerance in each parameter and their combinations in order to allow reasonable establishment of their limit values for track maintenance and for preventing of train derailment.
Detailed record
Requirements for design and in servce quality of track geometry in relation to interatcion between vehicle and track
 Trejtnar, Radek ; Ižvolt,, Libor (referee) ; Igielski, Vladimír (referee) ; Zvěřina, Pavel (referee) ; Plášek, Otto (advisor)
Aim of the proper track design is build track, which enable smooth run of the vehicle as much as is possible complying with the safety rules and reasonable level of comfort for passengers. However, this track has to be maintainable and the vehicle shouldn’t face unacceptable amount of wear. On the other hand it is clear that it is impossible to build ideal (straight) track because of many environmental and morphological conditions. So the rules for track designing have to be set carefully in order to produce a good track design which meets the conditions mentioned above. The principles for track designing are evaluated with using the results of track test running dynamic behavior of the vehicles in this study. These tests were made for couple vehicles on several track sections. The influence of design parameters on the dynamic behavior are evaluated based on these results. That’s defining one of the basic part interactions between vehicle and track. Evaluation of the quality of track geometry in service has the same or may be higher importance. Limit values as defined in standard ČSN 73 6360-2 was set partially in consideration results of scientific studies, but partially in consideration of as common practice. So that part of this work is verification of the influence of tolerance in each parameter and their combinations in order to allow reasonable establishment of their limit values for track maintenance and for preventing of train derailment.
Detailed record

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