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Condition monitoring of engine block machining - Plasma
Váško, Ondřej ; Krejčí, Jakub (referee) ; Pikula, Stanislav (advisor)
The aim of this thesis is to design and implement two methods of predictive analysis for company Škoda Auto a.s. In the first part I have conducted a literature search on methods of predictive diagnostics. In the next part, with help from thesis consultant in Škoda Auto a.s., the analysis of the assembly line and data blocks from machinery and measuring has been made. Then I designed and programmed data generator based on real data. I created two methods of predictive diagnostics, capable of analyzing input data and deciding about their condition. In the end I tested these two methods and evaluated accuracy of their prediction. Main output of my thesis is two methods of predictive diagnostics, feasible in real world.
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Automatization of production technologies status monitoring
Molent, Michal ; Číka, Petr (referee) ; Krajsa, Ondřej (advisor)
The bachelor thesis focuses on with a description and design of automated surveillance over operation of production technologies from the initial collection and processing of information to the presentation of the results in the company´s intranet and their archiving. In the first part the proposal is described theoretically with possibilities of advanced solution of the given issues. The second part occupy of with the initial proposal for the solution. The third part is focused on the implementation of the prototypical implementation of an automated surveillance for application in an industrial environment. The Fourth part focus on testing all system, which is used in two factoring halls D and E.
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Automatization of production technologies status monitoring
Molent, Michal ; Číka, Petr (referee) ; Krajsa, Ondřej (advisor)
The bachelor thesis focuses on with a description and design of automated surveillance over operation of production technologies from the initial collection and processing of information to the presentation of the results in the company´s intranet and their archiving. In the first part the proposal is described theoretically with possibilities of advanced solution of the given issues. The second part occupy of with the initial proposal for the solution. The third part is focused on the implementation of the prototypical implementation of an automated surveillance for application in an industrial environment. The Fourth part focus on testing all system, which is used in two factoring halls D and E.
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Immediate diagnostics of aircraft jet engines
Valuch, Tomáš ; Molčan, Anton (referee) ; Šplíchal, Miroslav (advisor)
In this diploma thesis is elaborated design of diagnostic system for small jet engines. The aim is to describe the types of possible failures of jet engines, to determine important parameters characterizing the immediate state of engine and define methods for measurement of selected parameters. The first part is devoted to a description of selected types of small turbojet engines, followed by a summary of the most widely used diagnostic methods for assessing the health condition of the engine during operation. The next chapter contains calculation of the engine thermal cycle with characteristics of construction components. Then there is analysis of small jet engine failures with a description of their causes and possibilities of identification by diagnostic system. Thesis continues with a description of measurement methods and selection of the required sensors. Next chapter is focused on the proposed diagnostic system for condition monitoring of the engine. The last part is devoted to an excursion in laboratory for jet engine testing at the Technical University in Košice.
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Methods of Technical Diagnostics
Klusáček, Stanislav ; Ďaďo, Stanislav (referee) ; Němec, Zdeněk (referee) ; Tůma, Jiří (referee) ; Bejček, Ludvík (advisor)
The main objective of the presented thesis is to contribute to the development of diagnostic methods for piezoelectric sensor testing. The thesis describes the methods for piezoelectric sensors microcracks identification and diagnostics. The core of the thesis presents the development of a knock sensor prototype, design of suitable methods for the knock sensors diagnosis and evaluation of developed methods with focus on detection of microcracks in the sensor piezoceramic. The last part of the thesis deals with the influence of cracks and splits on the measured data from the piezoelectric transducer. The presented methods are focusing on impedance measurements and sensors frequency response measurements. Known properties of used piezoelectric material as an information source for measurement and diagnosis are provided. The main result of the work is the evaluation of the methods developed for the piezoelectric sensors self-diagnosis.
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Maintenance of jet engines
Drápal, Stanislav ; Koštial, Rostislav (referee) ; Šplíchal, Miroslav (advisor)
This bachelor thesis relates to the problematic of jet engine maintenance. In the first part the reader is introduced to the historic context and functionality of the jet engine as well as to the various types of this engine. The second part relates to the problematic of maintenance, shows and compares different concepts and shows modern trends in this field. The last part is based on my visit in Letecké opravny Malešice, and shows practical methods used during overhauls of jet engines.
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