Investigation on the Effect of Improper Lubrication on the Performance of Rolling Element Bearings, M.Sc. Thesis Sharif University of Technology ; Behzad, Mehdi (Supervisor) ; Hoviattalab, Maryam (Supervisor)
Abstract
In this project, the effect of improper lubrication on vibrational behavior of rolling element bearings is investigated. Different lubrication conditions were deliberately produced using three oils with different viscosity grades on a bearing at different loads and speeds. The acceleration of bearing vibrations were measured, then analyzed by means of squared envelope analysis, a special case of cyclostationary analysis. The results and their comparison showed that decrease in lubricant’s viscosity grade can lead to an increase in magnitude of cyclic frequencies equal to cage frequency and its harmonics. This observation can be helpful in detection of lubricant degradation and in...
Cataloging briefInvestigation on the Effect of Improper Lubrication on the Performance of Rolling Element Bearings, M.Sc. Thesis Sharif University of Technology ; Behzad, Mehdi (Supervisor) ; Hoviattalab, Maryam (Supervisor)
Abstract
In this project, the effect of improper lubrication on vibrational behavior of rolling element bearings is investigated. Different lubrication conditions were deliberately produced using three oils with different viscosity grades on a bearing at different loads and speeds. The acceleration of bearing vibrations were measured, then analyzed by means of squared envelope analysis, a special case of cyclostationary analysis. The results and their comparison showed that decrease in lubricant’s viscosity grade can lead to an increase in magnitude of cyclic frequencies equal to cage frequency and its harmonics. This observation can be helpful in detection of lubricant degradation and in...
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