GMarsh
Mechanical
- Sep 30, 2011
- 123
Hi,
I am noticing phase drift in the FRF acquired on a cylindrical thin shell. When I acquire a vibration signal during machining of that structure, the time domain signal also shows a phase drift.
Please find attached snapshot of the FRF and vibration time domain signal.
Can someone suggest what might be possible causes for such phase drift and if possible how to avoid them. I made a survey on this in Google but found no useful info w.r.t my problem.
Thank you.
Regards
Geoff
P.S: Greg had a look at this FRF some weeks back and electricpete recently commented in another thread on phase drift on vibration signal. I am trying to correlate both, if possible.
I am noticing phase drift in the FRF acquired on a cylindrical thin shell. When I acquire a vibration signal during machining of that structure, the time domain signal also shows a phase drift.
Please find attached snapshot of the FRF and vibration time domain signal.
Can someone suggest what might be possible causes for such phase drift and if possible how to avoid them. I made a survey on this in Google but found no useful info w.r.t my problem.
Thank you.
Regards
Geoff
P.S: Greg had a look at this FRF some weeks back and electricpete recently commented in another thread on phase drift on vibration signal. I am trying to correlate both, if possible.
