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Design of a mattrack unit of an RC model produced by the 3D printing
Mašek, Dominik ; Rekem, Jakub (referee) ; Otipka, Václav (advisor)
The focus of this bachelor thesis is 3D print and design of mattrack unit for the RC off-road car. In the first part there are description of 3D print technologies, materials for 3D print and evaluation which of this method is suitable for hobby printers. The second part is focused on technical solution and the design of mattrack unit, most of unit parts are made by 3D print. First step was choosing of type of construction which should be inspiration for this mattrack unit. It was necessary to choose suitable tolerance of holes and pins to get required deposition of printed parts. There was problem with an unstrung belt when bodies of guiding wheels rotated. This problem was solved by the mechanical limitation of rotate. The construction is described by the technical documentation which was created by the 3D model.
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Infrastructure for electric buses
Adamec, Matěj ; Rekem, Jakub (referee) ; Štětina, Josef (advisor)
The aim of this bachelor thesis is to examine the charging infrastructure of electric buses from the point of view of dynamically charged buses, trolleybuses, statically charged battery electric buses and their combination in the form of partial buses. In the case of the trolleybus infrastructure, the method of powering the contact wire traction, the properties of the contact wire are described, and the operation of partial buses are not omitted. For the charging infrastructure of battery buses, a detailed evaluation of the methods of connection to the charging station, charging modes and an overview of offered charging solutions from selected companies is performed. Considerable attention is paid to the possibilities of standardization and automation of connections to charging stations. In the final chapter, an approximate calculation of the optimal capacity of the battery storage for the selected line and the subsequent evaluation of the charging solution of the operating electric buses on this line is performed.
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Design of the Tractor's Cabin Suspension
Rekem, Jakub ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
Diploma thesis is devoted to tractor cabin's suspension. First part of the work consists of the overview of used suspension designs and their various modifications. Next, law requirements for roll-over protective structure are described. Subsequently, the suspension design for small-sized tractor is explored. Law compliance is revised via ROPS procedure simulation using finite element method. In the last part of the work, virtual prototype of agricultural tractor in Multi-body environment is built and it is used for studying the dynamic characteristics of proposed cabin suspension design.
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Design of Reversing Gearbox for Historic Railway Draisine
Rekem, Jakub ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
Bachelor's thesis deals with the design of the reversing gearbox for the historic railway draisine. First part of the work is devoted to the overview of power units of railway draisines and technical solutions used in their design. The next part contains the description of the original reversing gearbox. The rest of the work explores the design of the gearbox itself.
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