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Adjustable portal for hydraulic pulsator Inova
Buchta, Tomáš ; Robenek, Dětřich (referee) ; Mazůrek, Ivan (advisor)
The aim of this thesis is the innovation of the testing device which is located in Institute of Machine and Industrial Design laboratory. The innovation relates to the portal construction design, where will be placed the hydraulic pulsator from the company INOVA Praha Ltd. New portal construction will be designed with respect to specified parameters and requirements and also with regard to the performed tests (damper tests, vibroizolated properties magnetorheological valves tests etc.). The thesis contains detailed analysis of the current tester and detailed analysis of similar machines with focusing on the portal structure and ways of positioning the crossmember. Further parts of the thesis is a detailed description of the design solution, including the computational simulations, attached drawing documentation and experimentally verified functional sample (crossmember).
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Analysis of the production process of HPL panels applied for playgrounds made by Kompan Inc
Vik, Michal ; Kouřil, Karel (referee) ; Sedlák, Josef (advisor)
The theoretical part consists of the introduction of company KOMPAN A.S. In addition, there are also introduced the main parts of production, especially CNC workshop, shop floor workplace and warehouse. In the experimental part there is introduced HPL material first. The following is a description of the testing including used tools and materials provided by Kompan Czech Republic s.r.o. Testing was focused on measurement of force load of instruments using piezoelectric dynamometer. The obtained data was processed and analyzed. The last part of the master's thesis is economic evaluation of the production of selected product, which consist of HPL panels. In the following discussion there are evaluate obtained results. In the conclusion part are summarized main results.
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Problems in machining of titanium alloys
Drábek, Tomáš ; Slaný, Martin (referee) ; Sedlák, Josef (advisor)
The theoretical part of the thesis contains a brief overview of some experimental methods that are used in machining technologies. The experimental part at first elaborates on the analysis of two titanium alloys. The actual experiment, which consists of milling of the two aforementioned materials with the use of several tools and holders, is then described. It was conducted in collaboration with the company Frentech Aerospace s.r.o. When milling, forces were measured with piezoelectric dynamometer. Further, the analysis of acquired data that is followed with discussion about its main findings, is provided. The conclusion of the thesis deals with the found facts corresponding with the information obtained by analysis of materials. The main results arise out of the comparison of used combinations of tools and holders for milling of material Ti-Al6-V4, observation of impact of particular factors on measured force, or out of different values of measured forces when milling two given materials.
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Stand for Single Cylinder Engine Testing
Sikora, Ondřej ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
The diploma thesis deals with construction design of stand for testing single-cylinder turbocharged engine. The first part describes principles and possibilities of measuring the performance parameters of internal combustion engines. It also analyzes the issue of measuring single-cylinder combustion engine. The main part of thesis is about construction design of stand, which describes the individual technical solutions of the general construction parts. The last chapter deals with numerical simulation, which uses modern software tools. This software helps with verification of function design.
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Experimatal Analysis of Windshield Wipers Motors
Dočekal, Martin ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
The work deals with the methods of measurement of small DC motors, especially motors used for drives wiper’s mechanisms. Furthermore, describing the internal structure and function of wiper’s engines. Measurement of these engines is carried out mainly dynamometers which is described in more details in the work. However, measuring systems consist not only from the dynamometer but also many other components such as controllers, software for testing engines, various stands, temperature and speed testers, and many others. These components are taken into account, when selecting the most suitable measuring system. There are also various systems analyzed and compared in terms of both technical and economic parameters, but also in terms of measurement options, such as immediate viewing characteristics on a PC monitor of the system assembly, the possibility of measuring the friction torque, efficiency, heating, etc. In conclusion, there is a recommendation of measuring system which I chose as the best option according to its parameters.
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Motor parameter identification for laboratory stand
Lidmila, Petr ; Knobloch, Jan (referee) ; Červinka, Dalibor (advisor)
The goal of introduced thesis is to provide measurement of the engines used as a tutorial laboratory stand in the course “Electric drives”. Due to the absence of appropriate measurement centre, the main emphasis is laid on the modernization of older dynymometer, which is going to be used by the students. Dynymometer has been equipped with the electric speed and torque vbmeasurement, data from these measurements are displayed and evaluated by the digital devices very clearly and precisely. Engines parameters measurements has only marginal importance in this thesis.
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Pneumobile dynamometer design
Fritscher, Matyáš ; Kubík, Michal (referee) ; Jeniš, Filip (advisor)
This bachelor thesis concerns design of measuring station with a dynamometer for a racing pneumobile developed by a student team. The aim of this device is to simplify the process of tuning of the vehicle and to make it more precise. At the beginning of the work, there is a research of current commercial solutions of dynamometer stations. Then, while choosing a suitable brake, there is an evaluation of the possibility of repurposing an old brake, given by the university for this project. After verifying that it meets the necessary requirements, there are several concept solutions presented. For the selected concept, with a specific design for this vehicle, there is a complete design solution including safety analysis of selected nodes.
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Methods of correction performance parameters of the diesel engine
Charouz, Ondřej ; Ramík, Pavel (referee) ; Štětina, Josef (advisor)
This diploma thesis deals with obtaining the most suitable way of correcting the influence of intake air pressure, temperature and humidity as well as correcting the influence of fuel properties (diesel fuel). These correction factors are adapted to a specific engine for military use. It is a four-stroke, diesel, turbocharged, 6-cylinder engine, PV6-K37, with a displacement of 19100 cm3. This work also deals with the creation of a methodology for the measurement of this motor at the engine station and with the treatise on current methods of power correction. The measurements were made in the premises of Excalibur Army Ltd. in Šternberk.
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