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Possibillities of connecting Suchdol and Bohnice by tram
Nádvorník, Petr ; Mervart, Michal (advisor) ; Kratinová, Alžběta (referee)
This diploma thesis deals with the possibilities of building a tram track between the Prague districts of Suchdol and Bohnice. It summarizes basic facts about public transport in general and in Prague, mentions the organization of the Prague Integrated Transport system and its financing. The practical part deals with the specific project of the tram track connecting Suchdol and Bohnice using the already designed tracks Kobylisy - Bohnice and Podbaba - Suchdol. Moreover, the nearby Troja area is added to the project. Based on current bus traffic data, new tram lines serving these areas are suggested. At the final stage, the project is complemented by the new P + R parking lots and the possibilities of their use.
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Computational modeling of noise emitted by tram wheel during cornering
Motyka, Jakub ; Fiedler, Robert (referee) ; Švancara, Pavel (advisor)
This thesis deals with computational modeling of curve squeal noise phenomena which occurs during cornering tight curves by trams. Lateral creep between rail and wheel and slip-stick phenomena leads to self-excited vibrations of the wheel which, therefore, emits unpleasant high-pitched noise. Two FEM models in frequency domain are carried out. First model is based on prestressed modal analysis. Due to unsymmetric stiffness matrix, unstable eigenvalues can occur. It is assumed that self-excited vibrations occurs on frequencies corresponding to that eigenvalues. Second model uses harmonic response analysis. It examines vibrations of the wheel excited by lateral creep force acting in contact region. This force is obtained externally by simple time-domain model. Results from harmonic response are used consequently for noise radiation computation.
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Design of Tram
Blaha, Tomáš ; Surman, Martin (referee) ; Zvonek, Miroslav (advisor)
The thesis is about design of autonomous tram, which is part of integrated system of adaptive control of city traffic. The thesis includes research of history and current production of tram view of design, technologic solution and prospects. The next part contains design solution, which includes layout of interior, color and graphic solution with regard to technical solution and ergonomics requirements.
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Transit Hub Brno - Merhautova
Krejčí, Petr ; Pavlíček, Jan (referee) ; Všetečka, Martin (advisor)
The diploma thesis deals with the reconstruction of the intersection of streets Merhautova and Provazníkova in Brno in means of to establish a comfortable transit hub between all passing lines. The reconstruction of the intersection includes a proposal for new tram stops and adjustment of pedestrian routes allowing easy transfer between cruise lines, trolley buses and trams.
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Evaluation of the Causes of Traffic Accidents Involving Public Transport Vehicles in Brno
Ševčíková, Lucie ; Finstrle, Jiří (referee) ; Panáček, Vladimír (advisor)
My master´s thesis is concerned with the problems of traffic accidents involving public transport in Brno. The first part of my master´s thesis is concentrated on an analysis of the structure of the vehicle fleet of the Dopravní podnik města Brna, a.s. (DPMB). There is an evaluation of traffic accidents of the vehicles of Brno´s public transport in the second part, according to the kind of traction. An analysis of the causes of the most common accidents was carried out on the basis of the ascertained results. In the last part, my master´s thesis is concerned with a proposal of measures to reduce the accident rate.
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Analysis of Deceleration of Trams and Evaluation of its Impact on Standing Passengers
Skupová, Dagmar ; Fleissig,, Petr (referee) ; Vémola, Aleš (advisor)
The thesis is concerned with establishing the braking retardation and determining of it's influence for standing passengers. The thesis consists of three parts. The first part is theoretical and it is engaged in brake system of tramway. The second, experimentally part talks about practical establishing of braking retardation. And the third part of thesis is gived to discussion about established values of braking retardation. The aim of thesis is to find a value of braking retardation, when standing passengers don't fall down.
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Design of Tram
Řihánek, Šimon ; Pelikán, František (referee) ; Zvonek, Miroslav (advisor)
The content of this diploma thesis is design of a low-floor tram, primarily intended for inner-city use. The thesis includes a brief summary of the historical development, analysis of current trends in tram design and analysis of currently used technical solutions. The main part is devoted to the design process, resulting in shape and graphical solution of the exterior and interior arrangement while respecting the structural and ergonomic requirements in respect of passengers and the driver of the vehicle.
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Development of railroad sanding equipment
Matečka, Martin ; Růžička, Bronislav (referee) ; Omasta, Milan (advisor)
This master's thesis is engaged in development of new sanding units for a specific type of rail vehicle. Sanding in rail transport is application of most commonly silica sand into wheel-rail contact. Thanks to its reliability it is still the most widely used method for removing contaminants and improving adhesion in that contact. Sanding devices were developed in cooperation with corporation, which deals with production of rail transport equipment, among other things. The most important part of sanding device is sand dispenser. Dispensers were experimentally developed at the test station in the cooperating corporation. Dispensers were tested for utilization conditions on the locomotive of the train and conditions for trams and light rail vehicles. Furthermore, sand boxes have been designed for specific type of rail vehicle and new type of sand discharge tube, which directs sand directly into wheel-rail contact was designed too.
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