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Design of an experimental rig for testing of internal-combustion engine journal bearings
Bedeč, Csaba ; Repka, Martin (referee) ; Omasta, Milan (advisor)
This thesis deals with the structural design of a test rig for combustion engine bearings with static and dynamic loading capabilities. The first part of thesis summarizes materials, geometries and possible bearing failures, then analyzes existing test rigs. The second part contains different solutions and summarizes these solutions to a final design. The last part contains analysis of possible failure of the test rig and solutions for these problems. The thesis contains drawings prepared for manufacturing and a design report.
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General Solution of Cranktrain Mechanical Losses
Honc, Robert ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
Master’s thesis deals with the description of cranktrain friction and presents and describes experimental cranktrain friction loss evaluations and computational cranktrain friction loss evaluations. The main problem is the creating software solution of selected computational friction loss evaluations that leads to calculation of cranktrain friction losses. Master’s thesis describes chosen computational friction loss methods and the subsequent creation of the software solution. After application on chosen internal combustion engine, it evaluates the results and draws conclusions about functionality of the software solution.
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Diagnosis of mechanical vibrations in asynchronous motor origin
Dostál, Martin ; Dostál, Lukáš (referee) ; Janda, Marcel (advisor)
Every machine needs to be maintained and controlled, if may work reliably during they service life. Big part of service life of expensive machines are those machines in operation. Vibration diagnostics is type of analysis, that doesn’t need removal of rotation machinery. The vibration, that are created by running machinery, are used as source of information about mode of operation. This master’s thesis contains theoretical analysis of vibration diagnostics and vibration measurements of a particular machine. This thesis contains 3D models of bearings and rotor asynchronous machine, which are created by software Autodesk Inventor 2014. Bearings vibration analysis of this models is performed by software Ansys Workbench.
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Bearings for machine spindles
Knápek, Jiří ; Nohál, Libor (referee) ; Galas, Radovan (advisor)
This bachelor’s thesis contains the survey of bearings for machine spindles. Thesis is especially focused on slide, air, magnetic and rolling bearings. Bearings are described with emphasis on their construction, lubrication and arrangements. In the end of this thesis there is a comparison of mentioned kinds of bearings for machine spindles.
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Hodnocení závad vybrané funkční skupiny spalovacích motorů
Baka, Petr
The bachelor work deals with the rating of clink mechanism in combustion engine. The work is divided into three main parts. The first part pays attention to the recent situation of engine construction in today's passenger cars. The second one describes the construction and material composition of each parts of crank mechanism. The last part concentrates not only on the evaluation of the defects which arise on the crank mechanism, but also describes their dividing according to the cause of each defect
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