Implementation of a Modal tracking algorithm?

[ManuvalUC3M]

Hi,

I am quite new to aeroelastic systems with high number of DOFs. I have spent some time reading the docs and playing around with some examples and they are very well documented, amazing work ;)

My question is: I want to perform an aeroelastic optimization with gemseo and sharpy and I was wondering if some kind of modal tracking algorithm has been implemented or if you recommend any particular scheme to get the trends of the modes evolution with velocity.

Thank you beforehand!!

Manuel V.

[ben-l-p]

I do not believe that there is a mode tracking algorithm implemented in the code. For my own work, I have tried tracking a few modes by finding which points best follow the trajectory of the previous points in the series (in terms of frequency, damping and the eigenvector), however, this was not very robust and still needed some manual post processing.

[ManuvalUC3M]

Thank you!

Regarding the tracking algorithm, I have tried some MAC algorithms, but sometimes they take even longer to run than the simulation itself and as you said they sometimes are not robust at all.

In the end in order to diminish computational cost I am using a KS function together with the boundary
proposed by Ringertz to identify the flutter in my design space (I leave the paper with some detailed info just in case you are interested :) https://doi.org/10.2514/2.2806).