However, after going through a full freeze-thaw cycle, some deterioration in load bearing characteristics was encountered.
Based on the results obtained in this study, the natural frequency of mode 3 is a good indicator of the deterioration in elastic bearing support conditions while mode 1 is the most sensitive to changes in support conditions.
This study attempts to explore the possibility of estimation of linear and non-linear stiffness parameters of rolling element bearings in rotor systems experiencing harmonic excitation from unknown imbalance as well as random excitation from a variety of sources, primarily the progressive random deterioration of the bearing surfaces and subsurfaces.
Furthermore, expansion joints may allow water, salt, and deicing chemicals to penetrate them, causing extensive deterioration to the bearings, substructure, and superstructure.
In this study, the dynamic parameters, namely natural frequencies and mode shapes are used to detect the deterioration of the elastic bearing supports of a simply supported bridge girder.
"Kepler's reaction wheel #4 continues to exhibit signs of elevated friction levels and occasional torque spikes that appear to indicate a deterioration of the wheel bearing," Hunter wrote in Monday's update.
During operation bearings undergo progressive surface and subsurface deterioration.
A modelling and experimental study is presented into the deterioration to the load-bearing performance of fibre metal laminates (FML) when exposed to fire, and compared to the constituent materials (monolithic metal and composite).
In order to confirm and verify the observations, further tests were conducted on a different beam with more deterioration levels in the elastic bearing stiffness.
It is essential to conduct systematic research on the deterioration law of the lateral bearing behaviour of RC pipe piles in marine environments.
