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Loudspeaker design for home environment
Šafer, Radim ; Schimmel, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
The subject of my bachelor‘s thesis is a design of the loudspeaker for home listening. Foremost I focused on simulations of the loud-speakers, which I use to a design itself. The loudspeaker is a two-way and stereophonic, which is optimised for a woofer Beyma 6B30/P and a tweeter Beyma T2010. The enclosure is closed, made of the M.D.F. material. The vibration damping is ensured by a polyester damping cottonwool. The maximum standardised wattage of the loudspeaker is 50 W, nominal impedance is 8 ?, internal capacity is around 15 litres, sensitivity 90 dB and weight 10 kg.
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Upgrading of Bohdíkov and Ruda nad Moravou Railway Stations
Hospodka, Pavel ; Brůha, Bohuslav (referee) ; Svoboda, Richard (advisor)
The task of the thesis is to make a study of reconstruction of two railway stations: Bohdíkov and Ruda nad Moravou. The aim of the project is to prepare a plan of reconstruction, which will suit actual state of traffic. The plan must abide the rules of law, especially in the case of the entry of people with physical handicaps.The thesis contains the plan of reconstruction of platforms, a regulation of geometric parameters of tracks, reconstruction of superstructure and also rebuilding of actual drainage.
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The analysis of dynamic effects acting on the turnout with a focus on structural condition
Hajniš, Jan ; Vukušič, Ivan (referee) ; Smutný, Jaroslav (advisor)
Author´s name: Bc. Jan Hajniš School: Technical University - VUT, Brno Faculty of Civil Engineering Veveří 331/95, 602 00 Brno Program: Construction and Transportation Engineering Title: The Analysis of dynamic effects acting on the turnout with a focus on structural condition Consultant: Prof. Ing. Jaroslav Smutný, Ph.D. Number of pages: about 100 + attachments Number of attachments: about 340 Year: 2014 This work describes the size and the process of dynamic effect – vibrations and shift – cockles in crossing panel and switch panels of the turnout constructions on steel and concrete sleepers in time and frequency domain. It compares the results of the measurement between these turnout constructions. Dynamic effects are undesirable physical phenomena for operation each train. It is therefore necessary to eliminate these phenomena as much as possible. The result of this test will by means of software programm and measuring set help to determine precisely the advantages and disadvantages of using both turnout constructions, or even to propose their improvements or dimensions.
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Upgrading of Praha Liběň Locomotive Servicing Depot
Ondra, Michal ; Burda, Petr (referee) ; Svoboda, Richard (advisor)
The topic of my thesis is to study the complex reconstruction of the locomotive servicing depot Praha Liben. The locomotive depot is both operational maintenance and repair trains. The section reconstruction begins in turnout number 1, the whole area locomotive depot will be reconstructed. The main task is to propose an exchange of stepped old construction turnout for turnout new one in the whole area of the depot. The total number of changed points is 27. Depot demolition tasks in order to extend the track number 10 on the minimum usable effective length of 105 meters is the other task. Establishment of two dead-end tracks number 15 and 17 will be extend to an effective length of 105 metres. Retaining wall with PU componentsis designed along track 17. The next task is to solve the drainage area. The area will be drained interconnected system drains into the sewer and trench walls.
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Vsetin - Velke Karlovice Railway Track Refurbishment (section between km 2.725 - 6.000 km) Including Track Laying Technology
Klar, Vít ; Hoza, Miroslav (referee) ; Říha, Tomáš (advisor)
This thesis deals with the design of track geometry parameters and the reconstruction of the selected section of Vsetín – Velké Karlovice railway track’s superstructure. This reconstruction expands to further include the connection track to the Bečva branch. This proposal has been designed with the following objects in mind: railway stops Ústí u Vsetína and Janová, railway crossings, bridges, culverts, etc. Finally, this proposal addresses the restoration of drainage along the tracks and track laying technology. It should be noted, that all proposed adjustments are designed according to current regulations and legislation.
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Vsetin - Velke Karlovice Railway Track Refurbishment (section between km 17,000 - 19,950 km) Including Track Laying Technology
Kulich, Pavel ; Pokorný, Ondřej (referee) ; Říha, Tomáš (advisor)
Bachelor´s thesis deals with design of permanent way and track geometry parameters of the selected section of Vsetín – Velké Karlovice railway track. The design should be considered primarily on existing objects such as railway crossings, culverts, railway stops, bridges , etc. Thesis includes restoration of drainage and track laying technology. It should be noted, that all proposed adjustments are designed according to current regulations and legislation.
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Speed Increasing for Track Section Křenovice - Nezamyslice
Bombera, Jan ; Kroupa, Jan (referee) ; Svoboda, Richard (advisor)
Bachelor´s thesis deals with the possibility of increasing the line speed at Křenovice – Nezamyslice track number 315A. Speed increasing is tested in two steps – with current track geometry parameters and with changing some of the track geometry parameters, but always in order to meet regulatory and normative limit values. The new speed is determined for conventional vehicles and for vehicles that are able to take advantage of cant deficiency I > 100 mm. Speed limits in locations of railway crossings, signals position, etc., are taken into account for speed increasing. In some cases are proposed measures to change these objects.
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Analysis of dynamic effects acting on crossings
Vukušičová, Daniela ; Vukušič, Ivan (referee) ; Smutný, Jaroslav (advisor)
This thesis is focused on measurement and analysis of dynamic effects on railway turnouts. Two turnouts with different wear condition were chosen. My attention was focused mainly on the crossing part of the turnout, where the highest dynamic impacts occur. The point of the thesis is comparison of the crossing part of turnouts in term of dynamic behaviour and assessment of influence of the wearing depth on dynamic effects. A part of the thesis is proposal of methodology of the measurement and convenient mathematical apparatus for analysing of dynamic effects on crossings.
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