Adapt a 2D mesh to a geometry via Hypermorph

Altair Forum User

I have two files, a geometry file (.step, solid) and a 2D mesh file (.stl). I want to fit the existing mesh to the geometry, because I want to be able to choose elements via surfaces. So I tried to map the elements to the geometry via 'Hypermorph --> map to geom'. I selected 'map to surfaces' (.step file) and 'map elements' (.stl file). I tried all options for the orientation, but non of these

resulted in accapteble solutions. The goal is to achieve a mesh, which is orientated ot the surfaces of the .step file, but without remeshing it.

 

I attached both files and the hm.

Unable to find an attachment - read this blog

Rahul Rajan_21763

Hi,

If you want mesh should associated with geometry then use automesh option to generate 2d mesh or organize each surfaces in to different component collector and then mesh it.

I see your shared files contains Hm file have mesh with splitted surfaces, stl file with mesh & stp with geometry.Still your query is not clear to me.

Regards

Rahul R

Altair Forum User

Hi,

I have a similar problem. For my project I got a complex 3D mesh as an Ansys File (.inp). Also I have the coresponding geometry, but with slightly larger dimensions, as an .iges file. I have imported both in Hypermesh and now I want to fit the mesh onto the geometry without needing to remesh the whole thing. The map to geometry tool should be ideal for this task. I can select 'map to surface' (and klick on the .iges-geometry) and 'map elements' and select the elements from the mesh. Also I tried to create a domain on the geometry file and selected 'map to surface' and 'map domain'. 

This process is also shown in this video on youtube I found: 

Basically I want to do the same thing, but with a more complex mesh. When I tried it, it always resulted in a distorted and warped mesh. It looks like I chose a wrong option in the 'method' drop-down menue. I tried 'fit to target', 'normal to geom' and 'along vector'. I was not sure what to use as vector for this, so I tried some of the coordinate axis. But nothing of this worked. 

 

I cant attach files because they may be confidential but they would look basically the same as the ones from ahenkes1. What is the right process to map the mesh onto the geometry?

 

regards

 

 

Rahul Rajan_21763

If you have similar model then definitely it should work.Even if you can post screenshot of your model it would be easy for one to comment?

 

Regards

Rahul R