Hi all,
I am comparing two FRFs acquired on a cantilever with two different holding systems. I am comparing in receptance format so that I can find out the compliance (or stiffness) of holding system.
System A shows lower amplitude than System B on receptance plot, indicating that System A holding stiffness is better than that of System B.
But I also noticed that the cantilever natural frequency is lower while holding with System A. How can this be explained ? I am expecting an increase in natural frequency as well (due to increased stiffness). What does the change in natural frequency indicate in terms of holding system effectiveness ?
I am attaching the FRF picture here.
Thank you and Merry Christmas !!
Geoff
I am comparing two FRFs acquired on a cantilever with two different holding systems. I am comparing in receptance format so that I can find out the compliance (or stiffness) of holding system.
System A shows lower amplitude than System B on receptance plot, indicating that System A holding stiffness is better than that of System B.
But I also noticed that the cantilever natural frequency is lower while holding with System A. How can this be explained ? I am expecting an increase in natural frequency as well (due to increased stiffness). What does the change in natural frequency indicate in terms of holding system effectiveness ?
I am attaching the FRF picture here.
Thank you and Merry Christmas !!
Geoff