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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Design of test rig for measurement of adhesion and noise in wheel-rail contact
 Gabriel, Tomáš ; Robenek, Dětřich (referee) ; Omasta, Milan (advisor)
This master’s thesis is dedicated to the design of an experimental rig that allows investigation of causes for noise during tram’s passing of a track curve and the developement of means to mitigate this noise. The opening section of this thesis contains theoretical background for the tribological mechanics of wheel-rail contact with emphasis on the process of noise generation, followed by an overview of laboratory tst rigs with similar purpose. Design itself is centered around the implementation of the dynamic model of wheel-rail contact using real tram wheel. Resulting test rig allows measurement of the adhesion characteristic in tangential and lateral directions and recording of the generated noise while an angle of attack is set.
Detailed record
Twin-disc machine for the study of wheel-rail wear and rolling contact fatigue
 Šperlich, Vilém ; Skurka, Šimon (referee) ; Galas, Radovan (advisor)
Presented thesis describes the design of an experimental device used for the study of wear and contact fatigue of wheel-rail contact. The text describes selected devices already used for the study of wheel-rail contact. The main part of the text focuses on choosing a suitable conceptual variant and the design of the resulting twin-disc machine with linear contact. The final design enables easy mounting of the specimens and their precise positioning. The final part of the text contains calculation of estimated price of this device.
Detailed record
Design of test rig for measurement of adhesion and noise in wheel-rail contact
 Gabriel, Tomáš ; Robenek, Dětřich (referee) ; Omasta, Milan (advisor)
This master’s thesis is dedicated to the design of an experimental rig that allows investigation of causes for noise during tram’s passing of a track curve and the developement of means to mitigate this noise. The opening section of this thesis contains theoretical background for the tribological mechanics of wheel-rail contact with emphasis on the process of noise generation, followed by an overview of laboratory tst rigs with similar purpose. Design itself is centered around the implementation of the dynamic model of wheel-rail contact using real tram wheel. Resulting test rig allows measurement of the adhesion characteristic in tangential and lateral directions and recording of the generated noise while an angle of attack is set.
Detailed record

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