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Order Analysis
Honc, Lukáš
This article deals with order analysis. The main purpose is design and realization of own library for online order analysis as a toolkit for LabVIEW. Library contains methods for order analysis including basic functions for processing vibration and tacho signal and functions for tach-less analysis of vibration signal.
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Online diagnostics of machine tool MCV 754
Rázgová, Benedikta ; Huzlík, Rostislav (referee) ; Zuth, Daniel (advisor)
This master’s thesis deals with online diagnostics of the machine tool and marginal analysis of surface texture. The first part of the thesis deals with problems theoretically, there are described the machine tools, maintenance, methods of technical diagnostics, specifically online vibrodiagnostic systems and an overview of profile and area parameters. In the practical part, two test samples created under ideal and degraded conditions. In the practical part, two signal processing processes under ideal and degraded conditions are compared using signal analysis from an online vibrodiagnostic system and surface texture analysis. Part of the work is the evaluation of the performed analyzes and recommendations for practice.
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Use of Vibrodiagnostics in Forensic Engineering
Záleská, Veronika ; Bradáč, Albert (referee) ; Panáček, Vladimír (advisor)
This thesis deals with the measurement and evaluation of vibration on selected parts of car. Part of the work is devoted to the theory of vibration and noise, which includes, among others, presentations of common disorders of machine parts in terms of vibration. In the practical part of the work were performed out measurements described here and the results analyzed. Last part is in short devoted to the possibilities of using a similar measurement in forensic engineering.
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Principles of maintenance of the TPM method
Zahradníček, Lukáš ; Hammer, Miloš (referee) ; Řezníčková, Hana (advisor)
This master thesis concerns modern method of TPM used in the production companies for maintenance of machinery. In the theoretical part, general maintenance is first described, as well as the TPM method. There is also described the technical diagnostics, which was emphasized in the practical part in terms of the use of vibrodiagnostics in predictive maintenance. In the practical part there is presented the proposal for introduction of the TPM method at the SMC Industrial Automation s.r.o. in Vyškov.
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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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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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Vibration analysis using a mobile phone accelerometer
Robek, Tomáš ; Huzlík, Rostislav (referee) ; Zuth, Daniel (advisor)
The bachelor thesis deals with the question whether or not measurements of vibrations can be taken with a mobile phone. For that purpose I made an experiment to compare data measured with a mobile phone and data measured with professional gauging equipment. I also focused on finding the most commonly used accelometer in mobile phones as well as on finding and comparing suitable mobile apps for recording vibrations with mobile phones.
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Diagnostic system of paper machine
Škrobánek, Martin ; Jankových, Róbert (referee) ; Zuth, Daniel (advisor)
This master thesis deals with the technical diagnostics, focusing mainly on vibration diagnostics. This problematice is described in the first part of this work on a theoretical level. The next part describes the paper machine, diagnostic system and the measuring points are classified into databases. The practical part of this work consists of a proposal for the methodology of vibration diagnostics for a paper machine, the procedure for measuring and evaluating the measured values. Part of the work is also a practical example of the measurement of the central cylinder, on which the procedure is tested, and the compilation of new limit values.
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