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Vibration diagnostics of bearings
Navrátil, Pavel ; Mazal, Pavel (referee) ; Klapka, Milan (advisor)
This bachelor’s thesis introduces the basic principles of vibrodiagnostic methods and their importance for individual fase of bearing’s damage. The selected methods studied are: acoustic emission, SPM (shock pulse method), SEE (spectral emission energy), envelope method, High frequency emission, Crest factor, Kurtosis factor and special method for slow-motion machines Adash Compressed Time.
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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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Pump design
Mizera, Ladislav ; Svozil, Jan (referee) ; Klas, Roman (advisor)
This thesis considers the characteristic of hydrodynamic pumps. It describes the activity of these pumps and it shows the particular characteristic curves. Then the hydrodynamic pumps are divided and described. The biggest attention is attended to the vertical multistage centrifugal pump and shaft seal.
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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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Description of tool systems in machine tools
Popela, Martin ; Foller, Bronislav (referee) ; Blecha, Petr (advisor)
This bachelor thesis is specialized on characteristic and theoretical description of three principal parts of cutting machine with major effect for machining process – spindle, mandrel and cutting tool. These parts are characterized and described with schemes and examples. Explanation of components function and running.
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Footbridge
Smělíková, Petra ; Puchner, Josef (referee) ; Sýkora, Karel (advisor)
The topic of my Bachelor's thesis is a static assessment of a bearing structure of a current footbridge which is also used for cycling. It is placed in Kunovice near Uherské Hradiště. The length of span is 28 meters. Its construction is solved as space framework with through-span. Main beam is truss structure with upper saddle flange. The height of beam in the middle of the span is 2.5 meters and above supports is 1.5 meters. The calculation is done either by hand or using calculation program Scia Engineer 2012.0.
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Modelling of servo-fluid bearings
Houfek, Lubomír
In the paper is presented analysis of inflow and outflow in hydraulic coupling elements in rotor systems. The models of squeeze film damper and hydraulic bearing are developed now. For solutions is used control volume method. There are presented two models of boundary conditions - in segment and in volume. Three locations of eccentricity are solved - centered shaft position, 50
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