Learning Forum

[Aathi R]

Hi everyone,

I’m working on my final-year project involving CFD analysis of a Gyroid lattice structure.

I created the lattice in Fusion 360 using the Volumetric Lattice feature. The structure is correct in Fusion, but after importing it into ANSYS DesignModeler/SpaceClaim, it appears as a plain solid block instead of the actual lattice geometry.

I tried STEP, STL, IGES and 3MF, but I’m still facing the issue.

What is the recommended workflow/file format for transferring a Fusion 360 volumetric Gyroid lattice into ANSYS while preserving the lattice geometry? I ultimately need to use it for CFD analysis in ANSYS Fluent.

I’ve attached screenshots of the Fusion 360 model and the imported geometry in ANSYS.

[erko]

Hi

Could you open the file in Discovery , Designmodeler, and other CAD package to see how it looks like (perhaps it is not exported correct from the software you are using, and needs an mesh+ stl conversion and then export : How).
All the best

 

[NickFL]

I am not a Autodesk user, but I imagine they save the volume and then have some Metadata for the solid that says what the internal structure of the solid looks like. That will keep the file size much smaller.  I did find this which may be helpful:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Exported-Volumetric-Lattice-part-from-Fusion-360-doesn-t-contain-Lattice-element.html

Ooops, looks like erko beat me to it.