Reply To: Question Regarding Simulated Voltage in Coupled Field Modal

[Erik Kostson]

 

 

 

 

Hi

The absolute values of the deformation/voltages (which are huge as you can see) of the modal analysis mode shape results do not mean anything as these are scaled eigenvectors/modes.

Only the frequency and the over all mode shape is of interest but not as said the exact and absolute magnitude. displacement/voltage values.

Hope that is clear. If not see here for some more discussions:

https://innovationspace.ansys.com/forum/forums/topic/natural-frequencies-anslysis/
https://innovationspace.ansys.com/forum/forums/topic/unrealistically-large-deformation-modal-analysis

I would suggest a course from ais on modal analysis where this also explained.

The displacement/stress results and voltages are of interest and can be looked at, once and when applying a force in a coupled field harmonic analysis.

See also our tutorials on this (coupled field harmonic):

In the help manual for the: Mechanical Technology Showcase: Example Problems Chapter 39: Wire Bonding Ultrasonic Transducer 

Erik