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Survey and Diagnostics of Building Construction
Haloun, Jan ; Cikrle, Petr (referee) ; Anton, Ondřej (advisor)
The topic of the first part of this bachelor thesis covers the methods of diagnostics of reinforced concrete constructions and their practical application. In the theoretical part are described the methods currently used with diagnostics of reinforced concrete constructions with focus on methods used in practical part. The practical part covers the survey of reinforced concrete constructions and its evaluation. The main objects of the practical part were the detection of the strength class of concrete and real reinforcement of certain elements.
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Causal analysis of control programs errors
Čapková, Hana ; Vojáček, Zdeněk (referee) ; Lacko, Branislav (advisor)
This Bachelor`s thesis concerns with the process of fault detection in software programs. It contains hierarchically organized typology of software errors, gained by research of available literature and analysis of events responsible for influencing the software errors evolution gathered into a typology of factors inspired by cognitive psychology. It contains also comparison of software evolution techniques and methodologies from the point of product validation and verification. The Bachelor`s thesis was written with respect to needs and requests of the commissioning company focusing on the Voice over IP (VoIP) software evolution. The thesis aims to suggest modifications of software errors database and error causes database.
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Impact of Faults and Errors in Context of Embedded Operating Systems
Doležel, Marek ; Pánek, Richard (referee) ; Strnadel, Josef (advisor)
Cílem práce je zhodnotit dopad injektovaných chyb a poruch na vestavěný operační systém a jeho aplikační vrstvu. Tento problém je vyřešen navrženým softwarem pro injektaci poruch a chyb. Tento software vkládá poruchy a chyby za běhu, tj. během provádění vestavěného systému. Injektace je spuštěna časem, jinými slovy, chyba je injektována po uplynutí časovače. Proti C/OS-II jádru spuštěnému pod NIOSII systémem byly provedeny dvě kampaně s injekcí chyb. Obě kampaně cílily na kód plánovače. Kód plánovače byl vylepšen mechanismem kontroly toku v případě druhé kampaně. Výsledky provedených injektačních kampaní ukázaly, že varianta s technikou CFCSS se ve srovnání s nezabezpečenou verzí chovala hůře.
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Rotor fault diagnosis of induction motors
Bednařík, Václav ; Cipín, Radoslav (referee) ; Vítek, Ondřej (advisor)
This bachelor thesis focus on the faults of induction motors. In general terms to mechanical and electirc faults and their influence on induction motor. Further on the tests, that are conducted on induction motors to detect faults and states that precede them. Main part is devoted to rotor eccentricity and broken rotor bars. Eccentricity is solved within theoretical analysis and measurements on free damaged motors. As well as broken rotor bars, which are supplemented by measurements on three damaged rotors. There are two types of eccentricity, static and dynamic. Faults of broken rotor bars is solved in terms of postion of broken rotor bars and their number.
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Survey and Evaluation of Existing Construction
Kozubková, Tereza ; Hrabová, Kristýna (referee) ; Cikrle, Petr (advisor)
The diploma thesis deals with the survey and evaluation of the existing structure. The theoretical part of the work is focused on the description of devices and methods used for destructive and non-destructive diagnostics of existing objects. In the practical part, a search of previous surveys and their results is processed, and an own diagnostic survey of the structure is also carried out. Based on the results of the survey, a critical element of the structure is selected and statically assessed, and then a method of statically securing the object is proposed
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Dependability Assessment Based on SMC
Gajdošík, Róbert ; Lojda, Jakub (referee) ; Strnadel, Josef (advisor)
Cieľom tejto práce bolo vyhodnotiť ukazalete spoľahlivosti výpočtových systémov. V pr- vom rade bola založená terminológia ktorá vysvetľuje základné pojmy ohľadom štatistiky and spoľahlivosti. Ďalej boli v tomto kroku preskúmané typy a vlastnosti chýb ktoré sa v takýchto systémoch vyskytujú, a techniky ktoré sa dajú využit na ich potlačenie alebo zmiernenie ich dopadu na fungovanie systému. V ďalšom kroku boli vysvetlené základné koncepty ohľadom modelovania a simulácie ako aj krátky nahľad do presností jednotlivých techník ktoré boli zvažované ako možnosti ktoré by boli použiteľné pri samotnom pro- cese generovania dát. Po rozhodnutí ísť cestou štatistickej simulácie boli v ďalšom kroku zavedené metódy pre generovanie dát analytickým spôsobom ktoré slúžia na overenie dát vygenerovaných štatistickými simuláciami, do úrovne kde je ešte možné sa k nim dostať re- latívne jednoduchými výpočtami. Nasleduje prehľad nástrojov na implementáciu modelov našich systémov, ich výhody a nevýhody a miera použiteľnosti. V ďalšich krokoch boli vo vybranom nástroji Uppaal SMC naimplementované niektoré vybrané systémy a situácie na základe časovych automatov, a následne boli vyhodnotené oproti iným metódam zlepšenia spoľahlivosti ako aj oproti analyticky dosiahnutým dátam. Práca končí zavermi ktoré boli vyvodené z testovacích dát.
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Diagnostika a opravy sedel vstřikovačů PD
HAVEL, Jan
This master's thesis deals with the topic of diagnostics and reparation of the unit of injector system PD. It focuses on the diagnostics of the most frequent malfunction of this system and on the reparation with a chosen method. The theoretical part describes the construction of the unit injector system and explained the principle of this injecting together with its use in different kinds of engines. At the end of the theoretical part, the system of attaching the unit pump-jet is described. The practical part of the thesis covers the diagnostics of malfunction and its reparation. It also explains how this malfunction is caused and how to proceed to fix it.
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Přestavba zemědělského objektu u obce Ortvínovice
SEDLÁK, Jakub
This bachelor's thesis deals with the reconstruction of an abandoned agricultural building near the village of Ortvínovice in southern Bohemia. The research part of the thesis deals with the summary of available information about the history of piglets, faults and their remediation methods. The practical part is devoted to the construction survey of the building and the design of a new use. The newly proposed plan includes a dispositional and structural description, verification of compliance with the zoning plan and a study.
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Diagnostika převodovek DSG
HAVEL, Jan
This bachelor thesis deals with the diagnostics of DSG gearboxes, in particular DQ250 gearbox. It focuses on the diagnostics of this gearbox without being disassembled, both in series and in parallel and subjectively. The theoretical part describes the DSC DQ250 gearbox, structural, mechanical and electrical parts, as well as the gearbox operation and its special functions. The practical part of work is focused on serial diagnostics, which is followed by the diagnostics in parallel and subjectively. The thesis concludes with results evaluation.
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Faults affecting the success of nursery schools management
Kafková, Jana ; Voda, Jan (advisor) ; Trunda, Jiří (referee)
The thesis concerns itself with the identification of common faults in school management with special focus on nursery schools. It compares the findings from literature with personal experience of selected nursery school headmasters. Its main objectives are to define the areas of high risk potential for mistake genesis and to find appropriate recommendations as to how to approach these faults. General perception of the found risk factors, and ways to approach them was subsequently verified in a survey. Lessons drawn from the faults should be perceived positively as a way to success and development. The thesis is divided into theoretical and practical parts. In practical part six interviews with nursery school headmasters were carried out and more than one hundred and twenty statements in the form of a questionnaire were obtained. A summarizing result of both parts of the thesis is a set of advice for beginner headmasters.
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