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Survey and Diagnostics of Building Construction
Grygar, Zdeněk ; Heřmánková, Věra (referee) ; Anton, Ondřej (advisor)
The main goal of this diploma thesis is diagnostics and vocational training in assessment of existing structure of the center of leisure time for children. The teoretical part is focused on vocational training in assessment of existing structures by ČSN ISO 13 822 - Bases for design of structures - Assessment of existing structures and assesment of brick structures. The designing strength of masonry and mortar is defined in the end of theoretical part. The practical part continues with real construction, where diagnostic methods based on technical survey are applied and in the end describes present state of real construction with plan for required steps to secure safety. As a result of this thesis is also a demonstration static report.
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Diagnostics of GNU/Linux-Based Systems
Hofbauer, Martin ; Doležal, Jan (referee) ; Smrž, Pavel (advisor)
This bachelor thesis focuses on the creation of the light-weighted program, which collects and saves information from GNU/Linux-based systems. Designed and developed solution can also inform about errors in the operating system and its unusual behavior. The program aims at maximum reliability, isolation of individual parts, and ease of use. The theoretical part describes problems of already existing solutions and focuses on the system monitoring context. The practical part then describes program architecture and its implementation. The program was successfully deployed in the company BringAuto, which collaborated with the creation of this thesis. It turned out that the program is able to record information from the operating system without its big load. In case of partial system failure, the program helped with finding its causes.
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Methodology of highly reliable systems design
Straka, Martin ; Gramatová, Elena (referee) ; Racek, Stanislav (referee) ; Kotásek, Zdeněk (advisor)
In the thesis, a methodology alternative to existing methods of digital systems design with increased dependability implemented into FPGA is presented, new features which can be used in the implementation and testing of these systems are demonstrated. The research is based on the use of FPGA partial dynamic reconfiguration for the design of fault tolerant systems. In these applications, the partial dynamic reconfiguration can be used as a mechanism to correct the fault and recover the system after the fault occurrence. First, the general principles of diagnostics, testing and digital systems dependability are presented including a brief description of FPGA components and their architectures. Next, a survey of currently used methods and techniques used for the design and implementation of fault tolerant systems into FPGA is described, especially the methods used for fault detection and localization, their correction, together with the principles of evaluating fault tolerant systems design quality. The most important part of the thesis is seen in the description of the design methodology, implementation and testing of fault tolerant systems implemented into FPGAs which uses SRAMs as the configuration memory. First, the methodology of developing and automated checker components design for digital systems and communication protocols is presented. Then, a reference architecture of a dependable system implemented into FPGA is demonstrated including several fault tolerant architectures based on the use of partial dynamic reconfiguration as the mechanism of fault correction and the recovery from it. The principles of controlling the reconfiguration process are described together with the description of the test platform which allows to test and verify the design of fault tolerant systems based on the methodology presented in the thesis. The experimental results and the contribution of the thesis are discussed in the conclusions.
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Vibration of rolling bearing
Otoupalík, Jan ; Ripel, Tomáš (referee) ; Krejsa, Jiří (advisor)
The thesis deals with vibrations caused by geometric defect and fatigue damage of rolling element bearing. Hardware for vibration measurement is tested on 25 new pieces of NJ 304. Second part of the thesis examines if measuring of bearing vibration can help to detect a geometric defect. Geometric defects are detected according to a spectrum of vibration but the results are not absolutely exact. The possibility to detect geometric defects by measuring vibration has not been proven. The end of project tests diagnostic methods for rolling element bearings. The bearing defect was simulated to demonstrate bearing failure frequencies, envelope method and vibration spectrum.
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Diagnostics and assessment of the structure of bridge
Lehocký, Peter ; Komárková, Tereza (referee) ; Kocáb, Dalibor (advisor)
This diploma thesis focuses on diagnostics of bridge structures. First part of this diploma thesis will focus on theoretical knowledge about bridge structures and common diagnostic techniques suited for examining material priperties of samples taken from structure. Second part of this thesis will focus on practical use of experiments used in diagnostic branch. I will be doing visual observation of concrete structure followed by experiments on core samples. End of thesis will be evaluating structure from global perspective and will deliver specific sugestions for renovation.
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Design and performance diagnostics of building
Dušek, Erik ; Žítt, Petr (referee) ; Daněk, Petr (advisor)
The bachelor’s thesis deals with diagnostics of a reinforced concrete road bridge, evidential number 325-021 in Hostinné, Hradec Králové region. The goals are to design and partially execute a diagnostic examination. As a part of the thesis, there is a visual inspection of the bridge and survey of the existing design documentation. The conclusion is dedicated to evaluating the diagnostic results and outlining reconstruction.
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Diagnosis of defects of an existing object
Niedoba, Jakub ; Láník, Jaromír (referee) ; Schmid, Pavel (advisor)
This bachelor thesis deals with structural and technical research of the Lužánky Leisure Time Activity Centre, a civic amenity building situated in Brno, 50 Lidická Street. A building diagnosis was carried out due to a number of static defects spreading fast all over the structure. The first part of the thesis describes the history of the surrounding Lužánky Park. Furthermore, the history of the city’s watercourses and the related issue of clay soil are also discussed. The practical part focuses on the diagnostics of the building together with its current state. After the theoretical assessment, short-term as well as long-term maintenance measures are proposed.
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Intelligent features classification aimed to support diagnosis of glaucoma
Vykoupil, Pavel ; Čmiel, Vratislav (referee) ; Odstrčilík, Jan (advisor)
This bachelor thesis deals with inteligent features classification aimed to support diagnosis of glaucoma. First part focuses on eye anatomy and disease called glaucoma. In next part is briefly described texture analysis and how do we get attributes for classification. In last part it is dealt with attribute classification with the aid of neural networks and algorithm HoKashyap and AdaBoost. This thesis is therefore focused on comparing effectivity of these classifiers on the field of optical diagnostics which was managed successfully.
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Tester of photovoltaic cells and modules
Pavlík, Stanislav ; Šimonová, Lucie (referee) ; Vaněk, Jiří (advisor)
This semestral thesis introduces basics of function of the photovoltaic panels and cells. In this thesis I introduce methods for detection of defect and characteristics of the solar cells. Main diagnostics method introduced in this work is method called FLASH. Next thing is to create for solar simulator PASAN SunSim 3C holder for testing of the photovoltaic cells and calibrate older continual simulator.
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Contribution to the Evaluation of Dissolved Gas Analysis in Power Oil Transformer Diagnosis
Ministr, Martin ; Szabó,, Radek (referee) ; Kratochvíl, Petr (referee) ; Hammer, Miloš (advisor)
This dissertation thesis is focused on the evaluation of the dissolved gas analysis in the power oil transformer diagnosis. This thesis derives from known, in standards, directives and literature shows realities which are fill in new pieces of knowledge as determining of gases important for evaluation of the transformer condition, specifying of current methods accuracy and investigating of accuracy change for interpretation of dissolved gases. The part of this thesis is the application of mathematic methods for detailed description of individual transformer failures and determining of dominant gas which are generating in power oil transformer. Obtain conclusion will be contribution for transformer diagnostics and will be applicable in industrial practice.
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