Increased vibration over time
A few days ago a bearing change was made and gas seal was connected to a centrifugal compressor, however, when the machine starts operating at a constant speed, the vibration values increase on the free and coupling side, it has been observed that the increase In the vibration values it is directly proportional to the temperature of the bearings, it is observed that the increase of the vibration at constant speed stops when the temperature becomes stable.
The temperature of the bearing shoes is within the alarm values, the temperature is normal (85 ° C).
Bearing type: tilting pad
Laser alignment was performed considering the thermal growth specified by the manufacturer The whole axis of interconnection of the machine was changed.
The vibration values of the power turbine are low.
The centrifugal compressor is of the brand Solar turbines and the model is C4021TAU-0155.
I would appreciate your comments on this, attached information on the machine and the graphics obtained in the two starts.
sorry for the poor translation into English