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Aircraft Engines till the End of WWII
Falta, Libor ; Drápal, Lubomír (referee) ; Dundálek, Radim (advisor)
Bachelor’s thesis deals with aircraft piston engines until end Second World War. Thesis surveys about known, the most use and non-traditional types of engines in timeline. At the beginning it deals about history of aviation and the first use of piston engine as power source energy for controlled flight. There are high requirements on aircraft piston engines. Improving construction and increasing output of engines. In every chapter typical construction and the most powerful engines of the period are described. Thesis includes influence of both World Wars and some prestigious racings, which considerably accelerated global development. Explain the limit for increase output of piston aircraft engines in the last part.
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Conceptual design of two-seat high performance car
Straka, Martin ; Blaťák, Ondřej (referee) ; Porteš, Petr (advisor)
is diploma thesis deals with design concept of two-seater sports car with the main focus on chassis torsional stiffness and axle kinematics. The main idea started with some paper sketches which were later transferred to the 3D model with all the main parts (engine, differential, driver etc.) using CATIA V5 design program. Then the torsional stiffness was counted using FEM software ANSYS 12.0. Finally the axis geometry during bump/rebump movement of the wheel was simulated in MBS system ADAMS 2007.
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Design of scooter
Oulehla, Jakub ; Rubínová, Dana (referee) ; Rajlich, Jan (advisor)
The topic of this bachelor‘s thesis is design of children's scooter of a higher price category. It solves basic ergonomic problems such as machine weight, height and length of deck, and height of handlebars. The goal is to solve these problems and create a scooter that is different of the current production, especially on the domestic market. The design has taken into account the safety, functionality and manufacturability of the machine. The color solution is adapted to the fact that the scooter users will be children.
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Reinforced concrete structure of a multifunction building
Marková, Anna ; Buřič, Pavel (referee) ; Šulák, Pavel (advisor)
The aim of this qualification thesis is to design a reinforced concrete monolithic ceiling construction of typical floor. It concerns locally supported panel that is 250 mm thick and of irregular shape. The spread of the span is 6 x 6 m with the overshoot of 1,2 m. Inside the building there is a staircase with a lift and a plumbing stack that is surrounded by the monolithic reinforced concrete wall that is 300 mm thick. The structural height of the floor is 3500 mm. The pillars` cross-sections are 450/450 mm. An analysis using the end-element method, a static design and a drawing documentation of the ceiling panel were conducted within this thesis.
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Measurement of the Weight Parameters of Vehicles
Rücker, Jan ; Bradáč, Albert (referee) ; Panáček, Vladimír (advisor)
This thesis is the first part deals with methods of determining weight parameters of vehicles. By measuring the position of center of gravity and inertia measurements. In the second part focuses on the measurement of gravity position in a selected group of vehicles Škoda and their comparison between vehicles and comparison with simulation programs PCcrach and Virtual crach.
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Design of 3 MW high-speed permanent magnet synchronous motor
Bořil, Michal ; Bárta, Jan (referee) ; Vítek, Ondřej (advisor)
The thesis theme is the design of 3 MW high-speed permanent magnet synchronous motor. The work is divided into several parts, and contains the information given on the topic. The first part lists trends and new technologies of high-speed electric machines, and the issues and construction of high-speed synchronous machines are also listed here. In the second part, the machine is analytically designed from the specified values, which is then modelled in the RMxprt program. In the penultimate part, the engine is simulated by programs that are included in the ANSYS Electronics Desktop package, they are RMxprt and Maxwell. The modified engine model in RMxprt is simulated using defined formulas and then converted to Maxwell 2D, where the engine is simulated using the finite element method. In the last part, the results from the analytical calculation are compared with other high-speed machines. In addition, the results of simulations from RMxprt and Maxwell were compared in the last part.
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Development and influence of the weight of cars and motorcycles
Valtrová, Martina ; Fojtášek, Jan (referee) ; Zháňal, Lubor (advisor)
This bachelor's thesis contains the description of the evolution of weight of automobiles and motorcycles. The first chapter contains a description of automobile dynamics and the influence of weight on dynamic properties of a vehicle. To describe the evolution of weight better, there are more detailed descriptions of weight evolutions of certain types of vehicles. The research of historical evolution and technology used today serves as the basis for the main outcome of this thesis, which is a prediction of the future development. This is the content of the last chapter.
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Influence of mass parameters on the vehicle driving dynamics
Dušek, Otakar ; Semela, Marek (referee) ; Panáček, Vladimír (advisor)
This diploma thesis deals with assessment of weight parameters impact on driving dynamics. History and basic categories of personal vehicles are described in the introductory part. Weight parameters and driving dynamics of personal vehicles are described in the next part. Methodology and results of realized driving tests (braking test, circular test and avoidance maneuver) are presented in the experimental part of this work. Simulation of realized driving tests that was made by simulation software Virtual Crash is devised in the penultimate chapter. Evaluation of results that were found out from realized and simulated driving tests is made in the last chapter. Achieved results are briefly summarized in conclusion.
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Aero Engines for Aircraft up to 2000 kg
Loutocký, Jiří ; Šplíchal, Miroslav (referee) ; Juračka, Jaroslav (advisor)
This bachelor project was created like database of certified aircraft engines for aircraft with 450 - 2000 kg of weight. It is divide into four parts. Each part contains another conception of comparison. First part comprises of list of worldwide successful manufacturers and their products. Second part ranks engines by type of fuel transfer to combustion chamber and charge pressure. Third part compares engines with similar power in tables and in graphs. (Class 100, 200 and 300 horse power). Last part solves selection of most optimal engine in classes 100, 200 and 300 horse power.
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Approximate determination of the load on the vertical elevator
Šindelek, Milan ; Šedivá, Soňa (referee) ; Štohl, Radek (advisor)
Bachelor thesis "Approximate determination of the weight load on the vertical elevator" is concerned with detecting the mass of material in the container storage tower LogiMat. In Chapter Weight container using strain gages described method to determine the weight by using strain gages and their placement in the draft Logimatu. There is also addressed the possibility of using measurements actual size of current asynchronous motor to drive the elevator. In the chapter Editing Software PLC is described library VahaLib that calculates the load from the measured variables on the elevator motor.
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