Dear Forum members,
Attached is the FFT profiles of Alternator end and engine end profiles Horizontal, vertical and Axial profiles.
Q1. on engine side at 0.41x /300rpm 50.51mm/s RMS is noted.
Q2. The overall vibration also showing high on vertical on engine end and marine classification societies recommended maximum satisfactory value 18 mm/s RMS.
Appreciate your comments and countermeasures suggestions.