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Using tribodiagnostics in predictive maintenance in company practice
Trost, Daniel ; Nahodil, Petr (referee) ; Hammer, Miloš (advisor)
The thesis deals with the use of tribodiagnostics in predictive maintenance in corporate practice. It is generally dealt with maintenance, then tribodiagnostics in the company Škoda Auto a.s. Used offline and online diagnostic tools are described. Emphasis is placed on verifying the functionality of the newly purchased online filter unit. The experimental part is focused on detailed analysis of the above, including comparison of measurement results offline and online diagnostics. There is also an economic evaluation of savings obtained by operation the online filter unit. In conclusion, the tribodiagnostics recommendations are given for Škoda Auto a.s.
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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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Quality assessment of shotgun barrel bore
Vespalec, Vítězslav ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
The diploma thesis deals with the issue of a quality assessment of a bore of shotgun barrels. There are mentioned both definitions of a quality shotgun barrel and also a quality of shotgun barrel bore. In conclusion, there are presented particular proposals for evaluation of parameters of surface texture of forged shotgun barrel blanks.
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Barrel Rifling Machine Designe and Function Analysis
Loutocký, Petr ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
This master’s thesis is devoted to rifling technologies of the barrel bore of fire and gas arms. In cooperation with the company Winston Production, s.r.o. also enters into operation issues of selected manufacturing machine Zs 151 for barrel rifling. It contains an analysis of legislative demands on the technical documentation, description of the construction and function of machinery and materials for the creation of local operating safety rules for its operation. The part of work is also 3D model of the machine created in software SolidWorks.
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Quality Assessment of Stainless Corrugated Tube
Vychopeň, Petr ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
Stainless corrugated tubes are used in many applications, mainly in automotive industry, distribution of various media, ventilation etc. The first part of the thesis is focused on description of the corrugated tube, identification of differences between corrugated pipe and hose, recommended materials for production and characterization of main technical parameters. The general production process of stainless corrugated tubes and the most common tests of mechanical properties are described. The second part of the thesis is focused on the comparison of the level of quality of the selected raw materials and evaluates the impact of partially degraded tools on the surface texture of the corrugated tube. The last part presents the results of measurements and practical recommendations.
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Thermodiagnostics – contact and contact-free temperature measurements
Mikula, Martin ; Jankových, Róbert (referee) ; Hammer, Miloš (advisor)
This thesis is concerned with thermodiagnostics in industrial practise, which is very important for the assessment of technical condition of object on the basis of temperature, in today's time. It includes summary of contact and contact-free methods and their principle, advantages and disadvantages for aplication in industrial practise. Because of thesis it was carried out measurement in company Daikin Device Czech republic with the use of contact thermometer and two available thermocameras for solving of topical tasks relating to production.
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Reliability of Power Oil Transformers
Ertl, Jakub ; Szabó,, Radek (referee) ; Kratochvíl, Petr (referee) ; Hammer, Miloš (advisor)
The doctoral thesis deals with design of non-invasive methods for estimated reliability analysis of power oil transformers. Such procedures also solve two-state and multistate reliability problems together with applying of gained reliability characteristics in planning further operation of these non-rotating electrical machines. Reliability module for diagnostic system, which is developed at the training workplace, is designed in conclusion of this thesis. All the above procedures were verified on data obtained from diagnostic measurements of ten power oil transformers operating in different power plants in the Czech Republic.
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Progress Prediction of Diagnostic Quantities
Akhmadishina, Alina ; Hammer, Miloš (referee) ; Ertl, Jakub (advisor)
The work deals with the analysis of time series of diagnostic quantities measured in power oil transformers. The first part includes power oil transformers and the description of diagnostic variables that are measured inside these non-rotating electrical machines. The next section introduces the decomposition model of time series including analysis of all its components. The last part deals with the predictions of the likely survival time of power oil transformers operating in different power plants in the Czech Republic.
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