I am trying to perform a numerical analysis on a morphing (folding) winglet and would like to know if there is a "best" tool to perform the analysis. I am currently familiar with Natran Aeroelastic Analysis.
In order to make good analysis , I would suggest to use FSI method (CFD-CSD) , i mean fluid structure interaction , You may find it in CFX-Ansys - Feel free to discuss the required steps to complete your work.
You might contact NASA's Aeroelasticity Branch next to Langley AFB. They would be able to help recommend a tailored approach to help with your project.