Condition Assessment of Highly-loaded Low-speed Bearings Using Acoustic Emission Monitoring
A Feasibility Study
B. Scheeren (TU Delft - Ship and Offshore Structures)
L. Pahlavan (TU Delft - Ship and Offshore Structures)
Miroslaw Lech Kaminski (TU Delft - Ship Hydromechanics and Structures)
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Abstract
In the present study, feasibility of implementing an acoustic emission (AE) system for condition monitoring of highly-loaded and low-speed roller bearings has been quantitatively investigated. To evaluate the transmission of damage-induced AE signals inside the bearing and their detectability on the accessible surfaces, stress wave propagation through the complex geometry and interfaces of a representative offshore bearing has been studied experimentally. The results suggest that in the investigated frequency ranges, the AE signals that pass through the bearing rollers and their interface with the inner and outer raceways can potentially remain of sufficient strength to be detected for condition assessment of these bearings.