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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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Modern approaches in the maintenance field
Pšenková, Tereza ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
This master thesis deals with position of the maintenance in the company structure and with modern management approaches. One of the highest levels of maintenance is the proactive maintenance, which is using the technical diagnostics to find out the causes of failures. The most inportant in case of machines are vibrodiagnostics and thermodiagnostics, which are going to be applied on the motors in company Bosch Diesel s.r.o.
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Vibration diagnosis of machines during routine tests
Kohutek, Tomáš ; Hammer, Miloš (referee) ; Nahodil, Petr (advisor)
This master thesis deals with the vibration diagnostics of machine vibrations during unit tests in industrial company Siemens Electric Machines s.r.o Drásov. In the master thesis is elaborated a design of the diagnostic system which contains selected methods of vibration diagnostics, methology, procedure of measurement and evaluation of measured values. The part of master thesis is also a practical example of measurement on which the mentioned system is tested.
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Methods of analysis of vibration signals
Sivera, David ; Hájek, Vítězslav (referee) ; Janda, Marcel (advisor)
The aim of the thesis is to focus on the different methods of analysis of vibration signals. Focusing on the physical fundamentals of vibrations and a description of their origin in an electrical machine. Describe the vibration sources from mechanical across the electromagnetic to the aerodynamic. Defining the current defects of electric machines and sensors suitable for the measurement of vibrations in an electric machines. Introduction to the methods of analysis of vibration signals in the time and frequency domain. Then using some of these methods for the analysis of vibration signals measured asynchronous motors with different manufacturer defined production defect. The conclusion is composed from the comparison between measured and analyzed results.
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Proactive machine maintenance system
Semotam, Petr ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
This bachelor thesis concerns issues of proactive maintenance, which is focused on machine tools. The most common failures and the most widespread methods of diagnostics of machine tools are described in the thesis. There are also described the procedure of Failure mode, effects and criticality analysis FMEA/FMECA, its possible development in the future with demonstrative presentation of application this analysis on CNC automatic lathe. Subsequently, in the practical part there has been chosen, described and appraised diagnostic of vibrations. Prior to the end the process in field of solving of establishment systems of maintenance has been recommended for SMC Industrial Automation CZ LLC Vyškov.
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Modification of Company Information System
Pakostová, Petra ; Záděra, David (referee) ; Koch, Miloš (advisor)
The content of this thesis is the analysis of a proposal to improve the company's information system that manufactures and sells diagnostic equipment. The work will include the creation of a new corporate website and electronic shop, without which nowadays is no longer a manufacturing company can do. The practical part will focus on the selection of open-source systems that will be used when creating the website and in creating e-shop. Of the various options will be selected the most suitable for subsequent comparison and implementation.
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Electrical machines fault simulator
Krátký, Michal ; Krbal, Michal (referee) ; Šlezingr, Jan (advisor)
The goal of this bachelor’s thesis is the laboratory task focused on vibrodiagnostics of rotating electrical machines. The thesis is divided into theoretical and practical part. The theoretical part is made of information related to rotating electrical machine mainly its faults and technical diagnostics. Besides that the vibrodiagnostics is involved into the theoretical part as well. The practical part deals with the design of laboratory task focused on vibrodiagnostics of rotating electrical machines. There is shown how vibrations influence the machine during the operation. There is used asynchronous machine 1LA7080 and vibrometer MV-5L and noncontact tachometer UNI-T UT372 for this experiment. The second task is the starting current diagnostics. The starting current ofthe engine with the rotor asymmetry 1LA7080 and rotor symmetry 1LA7090 is going to be analyzed here. On these engines will be shown, how current flicks affectthe magnetic field of the engine in the air gap.
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Machine tools diagnostics in corporate practice
Dresler, Tomáš ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
This thesis is concerned with machine tools diagnostics in corporate practice. In thesis is described technical diagnostics and description of chosen methods of technical diagnostics. Within the framework of thesis was realized measurement of machine tools in company stoba Precizní Technika ltd and its evaluation. Based on the results was suggested recommendations for machine tools diagnostics in company.
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Proactive machine maintenance system
Kasalová, Aneta ; Řezníčková, Hana (referee) ; Hammer, Miloš (advisor)
This diploma thesis deals with the maintenance and diagnostic failure conditions for machine tools. It is focused on the selection of appropriate methods of technical diagnostic state for machine tools in company SMC Vyškov. As part of the system design and proactive maintenance measurement methodology machine tools.
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