Curve cleanup
Curve cleanup
(OP)
Hello!
New to FEMAP and I'm having a problem with very small redundant curves, after editing my surfaces. I tried different commands like Geometry-Midsurface-Cleanup or Mesh-Geometry Preparation, in order to clean these redundant curves, but couldn't solve it.
The weird is that if I select all the curves and then delete, won't delete them. But if I select each one manually, then they can be deleted. But I cannot do that manually for the whole model.
I'm sending you a small example as attachment. Any help is appreciated
New to FEMAP and I'm having a problem with very small redundant curves, after editing my surfaces. I tried different commands like Geometry-Midsurface-Cleanup or Mesh-Geometry Preparation, in order to clean these redundant curves, but couldn't solve it.
The weird is that if I select all the curves and then delete, won't delete them. But if I select each one manually, then they can be deleted. But I cannot do that manually for the whole model.

I'm sending you a small example as attachment. Any help is appreciated





RE: Curve cleanup
You have to use the Geometry / Surface / Non-Manifold add. this is a powerful tool when creating midsurfaces. it will "merge" all duplicated curves and create a general body. Free-edges will be highlighted in yellow and then when you mesh your model you can be sure that all interfaces between sheets will be merged automatically.
Go to the Femap help under :
3.3.3.14 Geometry, Surface, NonManifold Add...
...is the only command in FEMAP which allows you to create “Non-Manifold Solid Geometry”, an option in the Parasolid modeling kernel which creates “General Bodies” as opposed to regular solids (FEMAP solids) and sheet solids (FEMAP surfaces). The command allows you to Boolean Add sheet solids to one another, as well as add “sheet solids” to Parasolid “solids”. The “Non-Manifold Add Tolerance” may be adjusted in an attempt to have more solids and sheet solids combined into as few “general bodies” as possible. (see the help to learn more...)
hope this helps,
SN
RE: Curve cleanup
RE: Curve cleanup
While using the command Non-Manifold add is there any option to control which points must remain stable?
RE: Curve cleanup
I don't understand what do you mean by stable points?
If it is about some free edges you want to keep...you can merge them all and then use the mesh / connect / Unzip ...to disconnect the elements you want.
The unzip command allows you to choose between :
- None : a second node is created.
- Rigid elements: you can create directly RBE2 with two coincident nodes at this location
- Spring damper (CBUSH)
- DOF Spring elements
...
Regards,
SN
RE: Curve cleanup
RE: Curve cleanup
You have to prepare the mid-surfaces before using this command. You can use the "mid-surface automatic" or the "mid-surface extend" commands...
Then you can use the non_manifold add.
Regards,
SN
RE: Curve cleanup
RE: Curve cleanup
Seif Eddine Naffoussi, Stress Engineer
www.Innovamech.com
33650 Martillac – France
RE: Curve cleanup
RE: Curve cleanup
Seif Eddine Naffoussi, Stress Engineer
www.Innovamech.com
33650 Martillac – France
RE: Curve cleanup
RE: Curve cleanup
Because since you add all solids to a general body you could not do some tasks anymore and you have to go back using Recover non-manifold add...
Regards,
SN
Seif Eddine Naffoussi, Stress Engineer
www.Innovamech.com
33650 Martillac – France
RE: Curve cleanup
RE: Curve cleanup
Seif Eddine Naffoussi, Stress Engineer
www.Innovamech.com
33650 Martillac – France