Comparative analysis of various procedures of vibration diagnostics for providing an effective and reliable prediction of rolling element bearing failures
Thesis supervisor: József Zoltán Szabó
co-supervisor: Ferenc Dömötör
Location of studies (in Hungarian): Óbuda University - Donát Bánki Faculty of Mechanical and Safety Engeneering - 1081 Budapest, Népszínház str. 8. Abbreviation of location of studies: ÓEBGK
Description of the research topic:
Maintenance services and mechanical diagnostic assume an increasing significance in each area of industry. The relevance of the subject is confirmed by the increasing complication of manufacturing equipment and the high maintenance costs associated with it. Maintenance costs can only be reduced by the application of advanced diagnostic methods.
In the operation of rolling bearings it is essential to know, analyse and follow the formation and development of bearing failures. The most effective way to do this is to use vibration diagnostics.
Vibration measurement can show up mechanical problems and harmful effects acting on the parts throughout the operating lifetime of the machine. Identifying and eliminating these can significantly extend the lifetime of the machine, and forecasting faults can assure continuity of production.
The available diagnostic measurement methods (low, medium and high frequency testing) and evaluation techniques (time signal analysis, spectrum analysis, waterfall chart, correlation function-based signal analysis, etc.) nowadays enable the evaluation and analysis of information content based on experiments. As a result, we can draw conclusions about the life of rolling bearings.
Research purposes:
Research Goals:
1. To work out of an optimum combination of various methods, available for measuring vibration of rolling element bearings in order to provide a reliable and effective prediction of the premature failure.
2. Design and construction of test equipment (or upgrading of the available laboratory machine) for the research of the vibrations of rolling bearings.
3. Performing experimental tests in the laboratory, using various methods and various test rigs that are available for the research.
4. Draw the conclusions by comparing experimental results (trends, time signals, vibration spectra, waterfall charts, Palograms, etc.).
Required language skills: english intermediate (B2) Further requirements: Prior studies in the field of condition monitoring of rotating machinery
Number of students who can be accepted: 1
Deadline for application: 2022-01-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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