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Design of machining process diagnostic system
Wolf, Jonatan ; Klapka, Milan (referee) ; Houfek, Lubomír (advisor)
The master’s thesis is focused on online diagnostics of the machining process. In the theoretical part are presented maintenance possibilities of machine tools. A whole chapter is devoted to vibrodiagnostics, which describes vibration sensors, their attachment to the measured object and methods of vibration signal processing. The practical part lies in creating a software diagnostic solution for chosen PLC and sensors. The functionality of the proposed system was verified during experimental machining, which also provided valuable data for the correct setting of the system.
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Use of GTI's wireless system for diagnostics of high-speed spindles
Škrobánek, Martin ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
This bachelor thesis deals with technical diagnostics and its place in machine maintenance systems. Above all, it focuses on vibrational diagnostics. Basic methods and procedures of vibrational diagnostics are described in the theoretical part of this work. The vibro-diagnostic wireless system GTI is analyzed and several measurements on the M8Cube are performed and evaluated in the practical part. On the basis of the measurements made, a system for diagnosing the M8Cube is designed using the GTI system.
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Using the RCM in machine maintenance
Ludvík, Radek ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
The master's thesis deals with maintenance in the theoretical part, this part is describing historical development and individual systems. Then explains concepts of vibro-diagnostics and electro-diagnostics. Further work will focus on complex maintenance systems such as Reliability Centered Maintenance (RCM). The implementation of RCM in the manufacturing company is the subject of a practical part.
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Study of fatigue life of roller bearings type 6204 -2Z
Poláček, Vojtěch ; Svoboda, Petr (referee) ; Klapka, Milan (advisor)
This bachelor thesis deals with the basic description of produced by fatigue failure of ball bearings. In the paper there is a description of basic diagnostic methods of machine parts. Following there is a study of vibration, their recording and the evaluation concerning bearing lifetime. The aim of the experimental part of the paper is to check the functionality and suitability od the VDT2000 analyzer and VDT Control Center software, both made by company VidiTech, s.r.o. together with the SA67 laboratory experimental stations owned by the Department of Design at Faculty of Mechanical Engineering, which were used for examining the 6204-2Z bearings. The aim of the lifespan exam is to confirm the reliability of the bearing failure warning by the analyzer and to assess the ability to record the first stages of bearing damage.
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Acquisition and evaluation of datasets from the vibrodiagnostic model
Kuba, Marek ; Marada, Tomáš (referee) ; Zuth, Daniel (advisor)
The master thesis deals with the use of artificial intelligence methods in order to classify static and dynamic imbalance. The measured data has been obtained with the help of the vibrodiagnostic model. The measurements were processed in the Matlab program environment and with the help of the classification learner app afterwards. The measured data has been processed by the common machine learning classifiers. The success rates of the particular classifiers and the measurement courses are further described in the thesis.
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Bearing diagnosis of electrical motors
Kratochvíl, Lumír ; Janda, Marcel (referee) ; Vítek, Ondřej (advisor)
This work breaks down the individual phenomena and findings that have as a common denominator the emergence of irreversible processes leading to damage to bearings in electrical machinery and equipment. The introduction describes the basic description and division of bearings with the recommended methods of their basic operation. The following chapters then deal with the individual sources of damage, diagnostics of individual damages, or examine in more detail the accompanying phenomena of bearing damage. In the first practical part of the work, damaged bearings are physically analyzed and their diagnostics is performed on an electron microscope. The second part of the work deals with vibrodiagnostics and the use of appropriate methods to determine the condition of the rolling bearing and then the location of the source of vibration at error frequencies.
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Proactive system maintenance machines in engineering practice
Morcinková, Lenka ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
This bachelor thesis concerns the technical diagnostics and maintenance of machine tools. The first part of it deals with this topic theoretically, the practical part focuses on the application of specific measures. Bachelor thesis includes vibrodiagnostic measurement of the lathe, suggestion of the proactive maintenance system and other activities that could help with the development of maintenance management in company SMC Industrial Automation CZ s.r.o.
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Condition Monitoring analysis for use by Key Performance Indicators (KPI)
Kelbl, Jan ; Staněk, Kamil (referee) ; Ježek, Michal (advisor)
This bachelor’s thesis deals with secondary Condition Monitoring data analysis to measure Key Performance Indicators (KPIs). First part of the thesis contains a research necessary to understand the problematics of condition monitoring technology and Key Performance Indicators. Also, the theoretical part includes a research on suitable data analysis software. The practical part of the thesis deals with choosing a data analysis software, data processing and data analysis and Key Performance Indicators measurement. Then visualizations are made and trends are measured. Based on the results from the practical part, a recommendation in matter of KPIs is made for the company, which provided the data, on which this bachelor’s thesis was realized.
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