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Measurement of torsion bars and stabilizers
Bláha, David ; Vančura, Jan (referee) ; Blaťák, Ondřej (advisor)
This diploma thesis deals with the measurement of the anti-roll bar characteristics. The target of this thesis is to design a device for measuring of torsional stiffness of the automobile stabilizer bars, design a measuring sequence for detection values subsequently used to calculate the stiffness, and calculate the total measuring error. The measuring device is designed for the needs of the Institute of Automotive Engineering of FME BUT.
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Traveling Mechanism of Crane Trolley Capacity 32 tons
Bláha, David ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
This bachelor work describes the design of running gear bridge crane trolley with lifting capacity 32 tons. The main objective of this work is the design and calculation of selected components of the running mechanism and parts directly related. The work contains a selection of design solutions, design drive motor with gearbox and brake, couplings, bearings, countershaft and output shaft. The work includes stress analysis of selected components. The work also includes drawing documentation.
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Design Optimization of the Manufacturing Process using Standardization and JIS
Nedoma, Tomáš ; Bláha, David (referee) ; Jurová, Marie (advisor)
The task of the project developed in cooperation with Bosch Diesel Ltd. in Jihlava was to create an optimization tool for the evaluation of production processes with a focus on JIS implementation on its individual parts. Another important goal was to create a standardized manual that makes it possible to optimize poorly rated parts of the production process. The aim of the thesis is to create an optimization tool that can be implemented globally. A model process for the project had been determined to efficiently define and test individual steps of the work. The first part is dedicated to theory, which was largely supported by many trainings as well as training materials from Bosch. In the practical part, there is given and described the created tool, which is subsequently applied to the selected process. The combination of theoretical knowledge with a practical example has led to the elimination of many unknowns. The result is a user-friendly tool that can be used worldwide. Due to the results of the evaluation of the selected process, it was not possible to implement JIS but steps were taken to improve the whole process and thus to save time and money.
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Obsah organického uhlíku v orniční a podorniční vrstvě půdy v porostech energetických trav
BLÁHA, David
The study aimed to determine the total content of organic carbon in the topsoil and subsoil layer of energy grasses (Dactylis glomerata, Elymus elongatus subsp. ponticus cv. Szarvasi-1, Festuca arundinacea, Phleum pratense). The plant cultures were established on 16 April 2019 at the experimental field of the Faculty of Agriculture and Technology, University of South Bohemia in České Budějovice. The organic carbon content was evaluated depending on the sampling depth and the fertilization variant. Soil sampling was taken at regular intervals with a pedological sounding rod from three depths (0-10 cm, 10-20 cm and 20-30 cm). The samples were adjusted for subsequent analysis on a Primacs SLC Analyzer in the Department of Agroecosystems laboratory. The highest content of total organic carbon was observed at 0-10 cm depth and the lowest at depth of 20-30 cm. Furthermore, a positive effect of fertilization on the total organic carbon content was found.
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Organic carbon content in soils of energy crops
BLÁHA, David
The aim of the study was to determine the total content of organic carbon in the soils planted by selected energy plants (Dactylis glomerata, Elymus elongatus subsp. Ponticus, Festuca arundinacea, Phleum pratense). The plant cultures were established on 16. 4. 2019 at the experimental field of the Faculty of agriculture, University of South Bohemia, České Budějovice. The organic carbon content was monitored regularly depending on the depth of sampling and fertilization of variants. The first sampling was carried out before the plant culture establishment. Further samples were taken every 2 months. All of the samples were taken from the depth of 0-10 cm and 10-20 cm by pedological sounding rod. Subsequently, the samples were adjusted for the analysis and examined with the SKALÁR instrument in the laboratory at the Department of Agroecosystems. During the measurement, a sharp increase of organic carbon in the sample taken in the spring of 2020 was observed. A higher content of organic carbon was observed in the samples taken from the depth of 0-10 cm, though, statistically not significant. It was further found, that fertilization influences the total content of organic carbon. The fertilized variants showed higher values than unfertilized. The highest amount of total organic carbon was recorded at the Phleum pretense variant. However, the differences between the plants were not statistically significant.
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Contemporary practise of placing artworks into the public space
Bláha, David ; Klimešová, Marie (advisor) ; Štefková, Zuzana (referee)
The bachelor thesis is focused on the problematics of contemporary practise of placing artworks into the public space of the Czech Republic and sets a goal of finding out how conditions of negotiation, choosing or creation of said works are and can be set up. The focus is laid on the city in a role of an executor, specifically on committees supervising the choosing of the monuments or on financial conditions of the tenders. The question is if there is a possibility of tracing a causality between the way of setting the conditions and subsequent quality of the artworks. The thesis focuses on examples of artworks that were placed into the public space and illustrates the problematics on these situations in the clearest way possible.
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Design Optimization of the Manufacturing Process using Standardization and JIS
Nedoma, Tomáš ; Bláha, David (referee) ; Jurová, Marie (advisor)
The task of the project developed in cooperation with Bosch Diesel Ltd. in Jihlava was to create an optimization tool for the evaluation of production processes with a focus on JIS implementation on its individual parts. Another important goal was to create a standardized manual that makes it possible to optimize poorly rated parts of the production process. The aim of the thesis is to create an optimization tool that can be implemented globally. A model process for the project had been determined to efficiently define and test individual steps of the work. The first part is dedicated to theory, which was largely supported by many trainings as well as training materials from Bosch. In the practical part, there is given and described the created tool, which is subsequently applied to the selected process. The combination of theoretical knowledge with a practical example has led to the elimination of many unknowns. The result is a user-friendly tool that can be used worldwide. Due to the results of the evaluation of the selected process, it was not possible to implement JIS but steps were taken to improve the whole process and thus to save time and money.
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Measurement of torsion bars and stabilizers
Bláha, David ; Vančura, Jan (referee) ; Blaťák, Ondřej (advisor)
This diploma thesis deals with the measurement of the anti-roll bar characteristics. The target of this thesis is to design a device for measuring of torsional stiffness of the automobile stabilizer bars, design a measuring sequence for detection values subsequently used to calculate the stiffness, and calculate the total measuring error. The measuring device is designed for the needs of the Institute of Automotive Engineering of FME BUT.
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|
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Traveling Mechanism of Crane Trolley Capacity 32 tons
Bláha, David ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
This bachelor work describes the design of running gear bridge crane trolley with lifting capacity 32 tons. The main objective of this work is the design and calculation of selected components of the running mechanism and parts directly related. The work contains a selection of design solutions, design drive motor with gearbox and brake, couplings, bearings, countershaft and output shaft. The work includes stress analysis of selected components. The work also includes drawing documentation.
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