Cylinder with a hollow cylinder inside

Altair Forum User

Hello,

I'm trying to mesh a larger cylinder with a smaller hollow cylinder inside; they have different orientations (as seen in the attachment). To create the geometry, I use boolean to subtract the smaller cylinder from the larger one. Then I use 3D -> solid map to mesh the geometry, but it fails with an error: 'Solid must have a single boundary, found 2.' I'm thinking if that means two boundaries are caused by the outer surface and inner surface of the larger cylinder. I would like to ask what might be a better way to mesh such geometry.

 

Thank you very much,

 

Ryan

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Altair Forum User

if you want to use Solid Map mesh then 1st of all in the visualization tool bar->geometric color mode-> switch to 'Mappable', now using solid edit operations you have to split that component multiple times such that each piece has opposite faces. if u successfully split a piece with opposite faces, it will turn into Transparent, meaning that it is ready to be automatically meshed using Solid map mesh option.  

 

split it into equal half along the length of the inner cylinder and again split that inner cylinder away from the outer. i guess it will turn into mappable sections and u can auto mesh it using solid map. after that reflect all the elements and give connectivity. i hope it will help u..