|
|
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.
|
|
|
Reconstruction of Merhautova – Okruzni – Seifertova crossing in Brno
Palán, Libor ; Šamánková, Zdeňka (referee) ; Pavlíček, Jan (advisor)
The theme of this master thesis is a way of solving tram track elongation in Brno - Lesna. The task was to draw up a tram track through the crossroad of streets Merhautova, Seifertova and Okruzni including reconstruction of crossroad. This master thesis deals with the of different variants of solution of crossroad. The most appropriate option is worked out further. In this work is also included outlining of futher tram tracking behind the crossroad and placement of the nearest tram stops. The result of this work is to elaborate of the situation including charasteristic cut sections and longitudinal profiles of tram lines. Part of this work is an estimate of the financial cost to realize this building.
|
|
|
Analysis of the causes and solutions proposed to tram transport delays from the transport and construction point of view
Kopecký, Vojtěch ; Svoboda, Richard (referee) ; Valehrach, Jan (advisor)
The thesis Analysis of the causes and solutions proposed to tram transport delays from the transport and construction point of view focuses on the issue of delays and speed drops in tram transport, especially on the causes of their occurrence and ways of their elimination. The thesis examines the current state of the Brno tram system, with a focus on the slowing elements in the system and the locations with frequent delays, including what causes these delays. The thesis also examines the possibilities of speeding up tram transport both from the point of view of transport and from the point of view of track layout. In the final part of the thesis, selected sections of the Brno tram system are analysed in more detail and on the basis of these analyses, measures are proposed that lead to the acceleration of tram transport and the elimination of delays that occur in it.
|
|
|
Design of rail vehicle sanding systems
Balounová, Hana ; Šperka, Petr (referee) ; Hartl, Martin (advisor)
The bachelor thesis deals with creating an overview of sanding systems, which are available on the marketplace in terms of their construction. Sanding devices are used in rail transport to incerase the adhesion during braking and moving off in bad weather condition. The thesis inculdes findings of testing influences of construction on the quality of sanding, list of companies producing sanders and their products and defining the future development trends.
|
|
| |
|
|
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.
|
|
|
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.
|
|
|
Universal computer program for energy calculations of power supply of DPMB tracks
Mai, Jaroslav ; DPmB, Jiří Šebor - (referee) ; Matoušek, Antonín (advisor)
This thesis dwells on program creating in program environment Excel, in accordance with submission from submitter. Program is going to be able solve all required values. This thesis has four parts. First part is oriented on problems of urban mass transportation a methods of specific energy consumption. Second part contains program flowchart and program description. Third part contains theoretical solution of specific energy consumption and theoretical comparison of computing methods. Last part contains numerical substitution in an equations and calculating of their values.
|
|
|
Tram Extension in Řečkovice
Tomašov, Filip ; Šamánková, Zdeňka (referee) ; Všetečka, Martin (advisor)
The main goal of the work was to modify Tereza Nováková street due to the extension of the tram line towards the planned graveyard, including the design of the tram line itself. One variant has been elaborated in detail, with alternative variants being shown in sample cross-sections.
|
|
|
Peace Square in Brno
Nováková, Barbora ; Págo, Tomáš (referee) ; Františák, Luboš (advisor)
The goal of my project is urban delimitation for social and cultural life of people. The multifunctional building takes place along the Lerchova’s street and it is a closing point of the square. The other side of affore mentioned square is opened towards the park on Kravi hora. The dominant place is a st. Augustin church, that is located on the north side. The closing point on the south is a cultural center, which is connected with community garden. My main intention is to change a traffic situation, that is currently quite problematic. To accomplish this I have joined the Udolni and Brezinova streets together with a perpendicular street. The tram loop is also shifted more into the parkside. The main object is the 5 floor multifunctional building, that is in elementary concept with passage. The object determines natural communication axis from the square to school in the Lerchova’s street. This concept is also reflected on the square. First floor is realized as a parter with commercial usage, the floor above is designed for living and parking is in the underground. Area for living is divided into a part of 1 floor housing units, that are accessible from a platform and a part of housing units inside the main building. Project comprises blue-green elements of grass surface for sucking the water into soil, trees in the square and perennial bed in the middle of tram loop.
|
guest ::
