Detection of cracks in impeller for high speed machines
Detection of cracks in impeller for high speed machines
(OP)
How can one detect a crack on impeller for high speed machines, running on journal bearings. Machines are monitored by Bently Nevada DM2000 system.





RE: Detection of cracks in impeller for high speed machines
RE: Detection of cracks in impeller for high speed machines
<nbucska@pcperipherals.com>
RE: Detection of cracks in impeller for high speed machines
So far as I know it is not a common, robust, technique.
Cheers
Greg Locock
RE: Detection of cracks in impeller for high speed machines
Having said all that I will warn you that I have seen impeller and turbine disk cracks, that never caused a significant change in vibration characteristics until the machine failed. Not pretty.
If you suspect impeller cracks, nothing beats a direct inspection of the rotor.
RE: Detection of cracks in impeller for high speed machines
bye
RE: Detection of cracks in impeller for high speed machines
Cheers
Greg Locock
RE: Detection of cracks in impeller for high speed machines
You can find more info by typing 'Peak Vue' at your search box.
Good Luck
Rich (Diplsplash)