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Honda B Engines
Smělý, Jiří ; Bradávka, Marek (referee) ; Svída, David (advisor)
This bachelor’s thesis deals with four-stroke internal combustion gasoline engines series B by manufacturer Honda (marked B-series) focusing on their characteristics, construction and use of models in the course of production. Attention is also given to applicability of these engines for racing cars.
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Modification of a motorcycle spark ignition engine
Poulíček, Matěj ; Ramík, Pavel (referee) ; Kaplan, Zdeněk (advisor)
This diploma thesis is about possible modifications of four-stroke motorcycle petrol engines for increasing power. It also deals with the modification of the Aprilia Leonardo 250 engine from a 2-valve variant to a 4-valve variant, the simulation of this engine and the proposed solution in the GT SUITE. Attention is also paid to the strength control of the crank mechanism of the engine.
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Innovative wood-based materials
Buriánek, Vlastimil ; Brožovský, Jiří (referee) ; Vaněrek, Jan (advisor)
This bachelor’s thesis deals with the issue of optimizing the modification process for plywood boards. Optimization consists mainly in evaluating different densification methods with different parameters of plasticization and stabilization. Psychical parameters (bulk density, swelling, water absorption) and strength parameters (bending strength, modulus of elasticity) of modified plates were chosen for the evaluation parameters. The practical part involved the verification of two thickening treatments on birch plywood.
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Modifying the Babetta engine
Poulíček, Matěj ; Píštěk, Václav (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis is about one of the possible modifications of two-stroke single-cylinder Babetta 210 engine for increasing of power. Further about another manufactured Babetta engines with focus on their pros and cons. Attention is paid also to possible design changes for elimination of drawbacks.
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Over-expanded internal-combustion engines
Novotný, Pavel ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
At the beginning there is a short history of over-expanded engines. Subsequently, the thermodynamics of ideal over-expanded cycles are analysed and compared with the ideal Otto cycle. The thesis also deals with some design solutions for achieving over-expansion in an internal combustion engine. In the thesis there are also selected over-expanded engines from leading world carmakers. At the end the thesis deals with systems with variable compression ratio.
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Thermodynamic of Atkinson and Miller cycle
Böhm, Michael ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
In the bachelor thesis is performed a basic thermodynamic analysis of combustion engines cycles. For every cycle there is also a design for a real combustion engine. Subsequently, the Atkinson and Miller cycles are compared to the ideal Otto cycle with supercharger and without it in terms of thermal efficiency for the same input parameters. The results are evaluated and the use of the Atkinson and Miller cycle in motor vehicles is explained. Next, there are specific car representatives, which use these cycles and the development trends of modern cars.
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Compression of ECG signal
Blaschová, Eliška ; Němcová, Andrea (referee) ; Vítek, Martin (advisor)
This paper represents the most well-known compression methods, which have been published. A Compression of ECG signal is important primarily for space saving in memory cards or efficiency improvement of data transfer. An application of wavelet transform for compression is a worldwide discussed topic and this is the reason why the paper focuses in this direction. Gained wavelet coefficients might be firstly quantized and then compressed using suitable method. There are many options for a selection of wavelet and a degree of decomposition, which will be tested from the point of view of the most efficient compression of ECG signal.
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Honda B Engines
Smělý, Jiří ; Bradávka, Marek (referee) ; Svída, David (advisor)
This bachelor’s thesis deals with four-stroke internal combustion gasoline engines series B by manufacturer Honda (marked B-series) focusing on their characteristics, construction and use of models in the course of production. Attention is also given to applicability of these engines for racing cars.
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