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| Author(s): |
Ricardo Serrato Castillo
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Escola Politécnica (EP/BC) |
| Defense date: | 2006-04-03 |
| Examining board members: |
Linilson Rodrigues Padovese;
Amilton Sinatora;
Daniel Kao Sun Ting
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| Advisor: | Linilson Rodrigues Padovese |
| Abstract | |
Vibration and oil analyses are one of the most popular and more implemented techniques used in programs of condition monitoring of equipments. Integrating these two techniques will significantly improve the overall capability of the condition monitoring program by providing more accurate and reliable information. The integration process necessarily begins by studying the correlation between the two techniques, both qualitatively and quantitatively. This research project studies the correlation between lubrication condition and vibration behavior of an oil-lubricated roller bearing. Several lubrication conditions have been studied: pure oils with different viscosity grades, oils with the presence of solid contamination in different concentration levels and particle sizes, and oils with additives. The vibration behavior was obtained by processing and analyzing of bearing vibration signals for all lubrication conditions and several bearing rotational velocities. Additionally, oil analysis and the evaluation of wear of bearing components were performed, in order to verify the existence of a possible correlation between the different analysis techniques used. The experimental results have determined that is possible to detect and to correlate alterations in the lubrication condition of roller bearings through vibration signal monitoring, using RMS values in different frequency bands. (AU) | |