Last week total RMS app 7 mm/s , after system stop for cleaning than start RMS app 10 mm/sn V direction. than we make rigid support some area under base frame. This fan on the spring. And 1x 2985 rpm onthe other hand I see W/M shape in TWF. 2 pole motor.
doyou say how can we improve vibration vzlue? and what is the 208 hz? Also 208 hz reduce when we add rigit suppurt under base frame.