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Powertrain Mountings in a Car Body
Dúlovcová, Gabriela ; Vopařil, Jan (referee) ; Drápal, Lubomír (advisor)
The main aim of this thesis is to give reasons and describe different conceptions of engine mountings that eliminate vibrations of powertrain in a car body of personal vehicle. Another part is a comparison of particular conceptions from construction views and features. At the end of the thesis, there is assessment and designed possible future development.
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Jawa 50 performance improvement
Horák, Jiří ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
The bachelor thesis is focused on increasing the performance of Jawa Babetta type 225 moped engine. The first part of the bachelor thesis describes the principle of a two - stroke combustion engine and the possibility of its distribution. The next part is dedicated to the modification, which was done experimentally according to information from available literature. The thesis contains a comparison of the results of the serial and modified engine measurements.
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Alternative conceptions of combustion engines
Šťáva, Martin ; Fojtášek, Jan (referee) ; Zháňal, Lubor (advisor)
The subject of this bachelor´s thesis on the topic Alternative conception of combustion engines is description of chosen historical and present alternatives to conventional piston combustion engine with crankshaft. The aim of this thesis is to create thesis that relates description of historical evolution of alternative construction combustion engines. Alternatives are described in terms of construction, operating principle and properties. In past were developed plenty of different conceptions of combustion engines. However most of them have never been successful because of many technical problems, complicated construction or other shortages.
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Active control of the wake behind the cylinder
Broučková, Zuzana ; Flídr, Erik ; Šafařík, P. ; Trávníček, Zdeněk
Active control of the flow around a cylinder using synthetic jet (SJ) array was experimentally investigated. The prevailing method was flow visualization. Modification of the wake was investigated at two values of a dimensionless momentum coefficient (Cμ = 0.21 and 1.02). Various α and Cf parameters were tested (where α is the angle between SJs and the main flow direction and Cf is the frequency ratio). The control moves separation point more downstream. Increasing frequency ratio Cf causes refining of the vortex structure. When SJs are placed at the front or rear stagnation points, wake tends towards the symmetrical pattern.
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Piston for Bioethanol Engine
Žilinský, Ondřej ; Ramík, Pavel (referee) ; Svída, David (advisor)
The aim of this thesis is to design Husqvarna FE 501 turbocharged engine piston for Formula Student competition using bioethanol as its fuel. Proposed concept originates in background research on design solutions of modern combustion engine pistons. FEM simulations are used for piston design.
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REINFORCED CONCRETE CYLINDRICAL TANK
Chumová, Petra ; Podroužková, Božena (referee) ; Šulák, Pavel (advisor)
The Bachelor´s thesis focuses on a static solution of reinforced concrete cylindrical tank. The thesis comprises dimensioning of the bottom of the tank and its walls to selected load cases and processing a drawing documentation. The calculation of internal forces is done using the software Scia Engineer. The validation of results is performed by hand calculation using differential equations on a simplified model for the results of internal forces in the wall of the tank.
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The Cylinders of Four-stroke Engines
Vanda, Marek ; Řehák, Kamil (referee) ; Dlugoš, Jozef (advisor)
The topic of this bachelor thesis is Cylinders of Four-stroke Engines. First part is about four-stroke cycle, engine construction. Next parts are about cylinders, their function and requirements. Also included is the importance of the cylinders on the engine operation and engine life. Last part is focused on the construction, materials of the cylinders and their usage in the past and today.
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Uniform Marker Field on a Cylinder
Kříž, Radim ; Havel, Jiří (referee) ; Herout, Adam (advisor)
This work presents a new extension for Uniform Marker Field, which is able to detect UMF on the cylinder. First part of the text deals with Augmented reality and focuses on systems using markers. It discusses the actual state-of-the-art systems and its possibilities. After that it focuses more deeply on the marker system Uniform marker field and its grayscale variants. Next part of the work describes properties of the cylinder projected in real space. Important properties for detecting are discussed in detail. Then the proposal and description of detection algorithm is presented. Implementation of algorithm is tested and evaluated on the very end of this thesis.
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Proposal for the automation of the production line for the grinding of compressor part
Jirák, David ; Jakoubek, Jaroslav (referee) ; Kubík, Roman (advisor)
The topic of this diploma thesis was chosen by Valeo Compressor Europe Company. The aim is to propose an automation of the production line for grinding of a compressor part. The part is internally termed “Cylinder,” and it is an integral part of a new type of a rotational compressor for air-conditioning units of automobiles. The diploma thesis includes a complete proposal for the automation of workplace. The current state, the proposal of the concept, technical specification of the project, and the choice of a suitable supplier and economical assessment are included. The data were provided by Valeo Compressor Europe Company.
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