Unsteady - Modal Coupling
 

Hello,

I’ve been trying to run the FSI unsteady simulation using modal coupling method in FINE/Turbo (version 12.1). I used fct(time) to impose the generalized displacement for the mode shape. However, I got this message when I started the solver:

“! Error in the number of points for displacement profile, nData = 0”

What does this message exactly mean? I’ve given enough points for the displacement though.

I did run the same model using NLH method. There wasn’t any problem with that. The idea is to compare the two runs (unsteady and NLH). On a separate question, I’m also wondering if it is possible to change IBPA in unsteady mode in a same way as Harmonic mode.

Thank you.

Hey Ko_Shine,

did you solve the problem? I have the same problem and couldn't figure out how to fix it.

Best regards,
AndrijaG

Hi,

Yeah I solved that problem more than one year ago. In my case, there were two groups of patches that were coupled sharing the same mode shape file. I needed to group them together as a single patch.

I hope it helps!

Hey Ko_Shine,

thanks for your fast response. I'll try to fix it with that hint. Thank you!