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Reliability of Technical Systems
Ertl, Jakub ; Šácha, Jakub (referee) ; Karpíšek, Zdeněk (advisor)
The diploma project is focused on investigating the reliability of multi-state technical systems. A summary of the basic conception of renewal theory and stochastic processes is given in this paper. The possibility of solving multi-state systems reliability by using Markov models or simulation is shown. The software Reliab. S. M. S. O. 1.0 was created for solving non-homogeneous series, parallel, series-parallel and parallel-series systems. Outputs of this software are described in chapter 10. This work also contains $\beta$-factor method and theory of common-cause failures. The diploma project was supported by project from MSMT of the Czech Republic no. 1M06047 "Centre for Quality and Reliability of Production" and by grant from Grant Agency of the Czech Republic (Czech Science Foundation) reg. no. 103/08/1658 "Advanced optimum design of composed concrete structures".
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Residential Complex in Brno - Komín
Ertl, Jakub ; Čelikovský, Martin (referee) ; Makovský, Zdeněk (advisor)
Urban Risen Solution parcel located on the street Pasture in the city of Brno chimney. The property is located on the edge of the city district and directly continues the surrounding forest, which is on the east side. The plot is an avenue of chestnut trees that proposal preserves intact. Oklí are good amenities. In its narrowest surroundings there are elementary school and kindergarten with their priľahlími Sports and satellites family townhouses on the south side of the property. After the eastern and northern boundary leads IMPORTANT relaxing walking routes on which the proposal responds through-beds, and a "restoration" of pastures, which once was located here. Land would extend that oľúbenú Walking and served by community residents as well as the city of the chimney. The project also own community náveznosťou room with a plate of street furniture. Architectural design Material objects based on the elongated shape of the land and is divided into three apartment buildings. Distributes land to the "street" and the "grazing". The volume responds to building orientation sides are angled wings housing the south and west. All the apartments are so perfect sunlit and overlook the "pasture". On the north side of the building they are arranged in the form of communication zasklennej galleries. The porch with loggias flats made up of separate steel structure, which forms the form of these apartment buildings. The main module becomes one living room, ensuring good housing variability. The building is located only forty apartments of sizes 1 + kk to 5 + kk apartment with terrace. Parking is in the combined form of overhead and underground parking. Building Solutions The building is designed as a reinforced concrete skeleton with dimensions of 8600 mm x 6600 mm with stiffening communication core. The shell is insulated with thermal insulation with a thickness of 200 mm. Area building openings is minimized on the north facade and vice versa is open to south and west facades, which benefits the passive energy gain. These construction holes are filled with high quality aluminum windows and doors with Triple glazing. On the frame is attached a separate steel construction porches and balcony. This concept allows a perfect insulation shell fired by a separate steel structures unheated porch and balcony, and hence a considerable degree of energy efficiency.
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Reliability of Power Oil Transformers
Ertl, Jakub ; Szabó,, Radek (referee) ; Kratochvíl, Petr (referee) ; Hammer, Miloš (advisor)
The doctoral thesis deals with design of non-invasive methods for estimated reliability analysis of power oil transformers. Such procedures also solve two-state and multistate reliability problems together with applying of gained reliability characteristics in planning further operation of these non-rotating electrical machines. Reliability module for diagnostic system, which is developed at the training workplace, is designed in conclusion of this thesis. All the above procedures were verified on data obtained from diagnostic measurements of ten power oil transformers operating in different power plants in the Czech Republic.
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Progress Prediction of Diagnostic Quantities
Akhmadishina, Alina ; Hammer, Miloš (referee) ; Ertl, Jakub (advisor)
The work deals with the analysis of time series of diagnostic quantities measured in power oil transformers. The first part includes power oil transformers and the description of diagnostic variables that are measured inside these non-rotating electrical machines. The next section introduces the decomposition model of time series including analysis of all its components. The last part deals with the predictions of the likely survival time of power oil transformers operating in different power plants in the Czech Republic.
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Reliability of Power Oil Transformers
Ertl, Jakub ; Szabó,, Radek (referee) ; Kratochvíl, Petr (referee) ; Hammer, Miloš (advisor)
The doctoral thesis deals with design of non-invasive methods for estimated reliability analysis of power oil transformers. Such procedures also solve two-state and multistate reliability problems together with applying of gained reliability characteristics in planning further operation of these non-rotating electrical machines. Reliability module for diagnostic system, which is developed at the training workplace, is designed in conclusion of this thesis. All the above procedures were verified on data obtained from diagnostic measurements of ten power oil transformers operating in different power plants in the Czech Republic.
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Progress Prediction of Diagnostic Quantities
Akhmadishina, Alina ; Hammer, Miloš (referee) ; Ertl, Jakub (advisor)
The work deals with the analysis of time series of diagnostic quantities measured in power oil transformers. The first part includes power oil transformers and the description of diagnostic variables that are measured inside these non-rotating electrical machines. The next section introduces the decomposition model of time series including analysis of all its components. The last part deals with the predictions of the likely survival time of power oil transformers operating in different power plants in the Czech Republic.
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