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Non-traditional Motorcycle Conception
Brezanský, Vít ; Drápal, Lubomír (referee) ; Beran, Martin (advisor)
The goal of the thesis is to introduce some interesting and non-traditional conceptions of motorcycles from the present and also from previous years. In every part reasons are described that led producers of these motorcycles to design conceptions that might be perceived as almost absurd. However not every one of them was forgotten and some succeeded on the roads and race tracks, others will be perhaps successful in a few years. Every part also includes a description of the construction and function followed by the assessment of individual solutions according to their justification, realization, number of pieces sold or race results.
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Engine Block Design of Aircraft Powertrain
Kuzník, Bořek ; Drápal, Lubomír (referee) ; Novotný, Pavel (advisor)
This thesis describes the problems of the engine block and crankcase. There is solution of structural design and contains the engineering design of invert six-cylinder engine block with water cooling. Thesis deals with connected equipment and drives. Engineering design is verified by finite elements analysis for the determination of strenght and durability. The ending of thesis analyzes the production methods of designed engine block.
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Measurement of Bearings Power Losses
Musil, Roman ; Raffai, Peter (referee) ; Drápal, Lubomír (advisor)
The intention of this bachelor's thesis is to handle an information about the measurement of losses in radial slide bearings and rolling bearings. In a first section, there is described friction in bearings. The next section is about the comparing machines with static and dynamic conditions. Third section describe methods and means of experimental measurement of losses in bearings under different operating conditions. In fourth section, there is introduced the numerical model for friction losses. In the last section, there is summary of machines and there is depicted possible future development too.
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Application of anti-friction bearings for four-stroke internal combustion engines
Knotek, Jiří ; Svída, David (referee) ; Drápal, Lubomír (advisor)
This thesis is concerned with the anti-friction bearings and their application in the construction of the four-stroke cycle internal combustion engine. Thesis consists of several parts. The first one is concerned with the anti-friction bearings themselves. This part provides basics of theory of the anti-friction bearings needed in the next parts. In the next part is described the use of the anti-friction bearings in the internal combustion engine. Last part is concerned with the use of the anti-friction bearings in the construction of the four-stroke cycle internal combustion engine. There is described mounting of crankshaft, connecting rod, camshaft, balancer shaft and turbocharger.
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Condition and Control Active Safety
Gašpar, Daniel ; Drápal, Lubomír (referee) ; Blaťák, Ondřej (advisor)
Bachelory work concerns conditional and control safety, shows thermal conditions of car crew, obligated specifications for heating and air-conditioning. Focuses on cooling units, defines exact part of air-condition´s systém, transfer of heat between a cabin of a car and souroundings, reduction of consumption and ways of reaching of this statement. Next it is encouraged with comfortability of siting, mainly locating people in bodywork, geometry inside space and creating virtual model and constructing seats.
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Engine modification for racing application
Fried, Tomáš ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This bachelor’s thesis deals with modifying a stock engine for racing application. The thesis briefly describes the regulations of the championship FIA CEZ Division 4 and rival powertrains. Next, it analyses the stock engine and two variants of modifications. The last chapter offers further possible modifications to the engine.
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