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Prediction of Selected Parameters of Rotational Kinematics Pairs of Machine Tools
Marek, Tomáš ; Šooš, Ĺubomír (referee) ; Kolář, Petr (referee) ; Blecha, Petr (advisor)
The dissertation thesis is used as a methodology for prediction of selected parameters of rotational kinematic pairs of machine tools. The motivation for its writing has been continually increasing requirements for parameters (performance, accuracy, static and dynamic stiffness) of machine tools. The methodology takes into account the availability of suitable measuring devices and description of the design of rotary kinematic pairs. It will be useable for predicting the behavior of rotational kinematic pairs, even at the design stage by applying results to the machine design. The work is processed so that first is used a system approach to suggest methodology for prediction of the behavior of rotary kinematic pair in CNC machine tools, planning measurement strategy and verifying the results, including applications for specific kinematic chain of the selected machine. Based on this system approach and the resulting methodology, the measurement of the rotary kinematic pair was performed. The results of the system approach and measurement are generalized in the form of recommendations for designers of machining centers, allowing to increase the accuracy of the rotational kinematic pair.
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Program for calculation of ventilation and heating in synchronous machine
Kolář, Pavel ; Ondrůšek, Čestmír (referee) ; Huzlík, Rostislav (advisor)
This master´s thesis deals with ventilation of synchronous generators with a cylindrical rotor. For the design of ventilation we apply basic physical laws in the field of hydromechanics and thermomechanics. Therefore the first chapters are devoted to these subjects. They are followed by the description of ventilation systems and a thermal net is created and solved for one of them consisting of the thermal resistance and sources. The final part deals with a program, which I developed in Visual Basic 2008 Express Edition. This program enables to calculate the ventilation and heating of individual parts of the machine after entering basic machine dimensions and losses.
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Frame of foundry trolley crane 330 t
Otevřel, Marek ; Kolář, Pavel (referee) ; Pokorný, Přemysl (advisor)
The topic of this diploma thesis is the frame of the foundry trolley crane 330/65/20t. The crane crab is used for handling with molten metal. The frame is analyzed by strength inspection and fatigue strength inspection. The process is according to ČSN EN 13001. The analyses are made by using finite element method on a beam and shell models. The diploma thesis was made in cooperation with the Královopolská a.s. company.
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Analysis of crab frame of bridge magnet crane 15t 27,5m
Strommer, Bohumír ; Kolář, Pavel (referee) ; Pokorný, Přemysl (advisor)
The diploma thesis deals with crab frame of bridge magnet crane with lifting capacity 15t used in steel mill for handling billets. Thesis contains strength analysis and fatigue strength check of crab frame based on ČSN EN 13001. Strength analyses are made by using beam and shell models of finite element method. The diploma thesis was carried out in cooperation with Královopolská a.s. company.
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Application of LED in Lighting Technology
Kolář, Pavel ; Bátora, Branislav (referee) ; Baxant, Petr (advisor)
Bachelor's thesis deals with basic principles of Light-Emitting Diodes, their supplying, characterization of these light sources in relation to application in luminaires, possibilities of application in standard practice and economical contribution of LED technology. It's mainly drawn from internet sources to this topic because manufacturers and distributors of lighting technology like Osram, Siteco, Philips, Bergquist, Cree, LEDfield and other companies provide a lot of catalogs with technical parameters and examples of applications on their webs.
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The Pespectives of Spiritual Service as Seen by Clergy of Prague Diocese of the Czechoslovak Hussite Church
Netřeba, Tomáš ; Kolář, Pavel (advisor) ; Bravená, Noemi (referee)
The thesis "The Perspectives of Spiritual Service as Seen by Clergy of Prague Diocese of the Czechoslovak Hussite Church" deals with the phenomenon of the spiritual ministry in the Prague Diocese of the Czechoslovak Hussite Church (CČSH). It provides a historical and theological introduction to the spiritual ministry in the CČSH and a description of the current church orders that determine the current rights and duties of clergy. In the theoretical part, it also describes the personal prerequisites for spiritual ministry according to professor Rutrle, the current requirements for education and qualifications of clergy, and the challenges that accompany spiritual ministry in the Prague Diocese of the CČSH. In the practical part, the author, using a quantitative method of phenomenological research applied by the method of semi-structured interview with partially open questions according to Hendl, provides an insight into the perception of the current spiritual ministry by deacons and priests of the Prague Diocese of the CČSH and, at the same time, presents how the clergy imagines the possible improvement of their ministry in the perspective of the future. NETŘEBA, Tomáš. The Perspectives of Spiritual Service as Seen by Clergy of Prague Diocese of the Czechoslovak Hussite Church. Master's...
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