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Comparison of methods for identification of rolling bearing failures
Kokeš, Miroslav ; Hnidka,, Jakub (referee) ; Klusáček, Stanislav (advisor)
The aim of this master thesis is the comparison of selected methods and parameters for roller bearings diagnostics. Selected statistical parameters are kurtosis, crest factor, and parameter K(t). The other selected methods are envelope analysis, cepstral analysis, and ACEP method. These methods are implemented in LabVIEW software and compared based on noise resistance, computation speed, and overall capability of identifying roller bearing faults.
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Machining of precise holes for bearings
Blecha, Jan ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
This diploma thesis is about machining of exact hole specifications to fit the bearings from the the theoretical overviewof the fiiting. Another purpose is to describe; the overview of machines, the choices in bearings, and the types of gearboxes. Finally, it deals with the different methods of surface finishing, how to produce the holes for the bearings to fit in gearboxes.Finally, it deals with the different methods of surface finishing and how to produce the holes for the bearings to fit in the gearboxes
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Freight Elevator
Málek, Ondřej ; Kozok, Zbigněv (referee) ; Škopán, Miroslav (advisor)
This diploma thesis is dealing with rebuilding of a lift with load 1000 kg into lift with load 1500 kg. This thesis is mainly intent on dimensioning of propulsion and choosing of traction means. The frame cage of a lift is counted by MKP analysis.
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Processes of contact damage bearing materials
Chaloupka, Petr ; Dvořáček, Jiří (referee) ; Hort, Filip (advisor)
The focus of this bachelor’s thesis is treatise on processes of contact failures of bearings and theirs materials analyse type of degradation processes of material, contact fatigue strength and means of metering. In fine of bachelor’s thesis are given development of future tendencies in optimalization of bearings.
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Travelling Crab
Šponar, Pavel ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
Bachelor thesis deals with a project of the travelling mechanism of the travelling crab (electric motor and gear-box) and check calculation for starting. The aim of this work is to design a travelling wheel with save, therefore it is necessary to design the suitable normalized components. The solidity calculations of the travelling wheel, the bearing and shaft ( static and dynamin straining).
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The use of optical methods in the diagnosis of electrical machines
Tobolák, Petr ; Kuchyňková, Hana (referee) ; Janda, Marcel (advisor)
This term describes questions of scanning rotors of asynchronous motors using 3D scanner. At the beginning it deals with a theory of asynchronous motors, defects of these machines and last but not least also questions of 3D scanning. Directly it focuses on a practical processing of measured rotors and their necessary modifications using of a program GEOMAGIC. It includes a diagnostic of deviations of scanning components of rotors with a model created on a program AUTODESK INVENTOR and posiible reasons of their creation.
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Replacement of big diametral bearing at mounting of vertically lathe table
Sklenář, Jaroslav ; Skýpala, Milan (referee) ; Marek, Jiří (advisor)
This dissertation deals with table seating at a vertical lathe made by TOSHULIN, a.s. The target is to design such table seating which would replace the existing seating solution with a cross bearing having better technical and economical parameters. The dissertation includes analysis of some chosen variants of table seating; this analysis has been done from several aspects and it is completed by the subsequent evaluation. After the results of multi criterion analysis have been evaluated, I performed calculation as well as designing of two table seating variants in the practical dissertation part.
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Simulation model of levitation magnet and magnetic bearing
Stuchlý, Karel ; Bárta, Jan (referee) ; Huzlík, Rostislav (advisor)
The aim of this Bachelor thesis is to make a review about konstruction and options of simulation of active magnetic bearing. This active magnetic bearing will be a part of milk pump in food industry. A traditional oil lubricated bearing could devalue a fluid. As a part of the work is carried out a simulation of levitation electromagnet by a computer program ANSYS Simplorer and Maxwell. Consequently, knowledge of this simulation are applied to simulate two-axis magnetic bearing, which is simulated.
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Track Bridge Interaction
Kapounek, Jan ; Kubelka, Jan (referee) ; Plášek, Otto (advisor)
This thesis focuses on the analysis of different approaches to the evaluation of the combined response of bridge structure and continuous welded rail on 5 planned bridges on high-speed railway in the Czech Republic in the stage of Land Use Permission. The output of the analysis of these bridges is the indication and description of problematic points occurring in the methodology as well as the development of recommended steps for the calculation of the combined response of structure and track to variable actions by the method of Complex Analysis for bridges on high-speed lines in the Czech Republic. Based on this recommended procedure, a simple bridge model is created.
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