Learning Forum

[ApurbaDeka]

Hello All,

I have this simple CAD part ( parallelepiped). I am trying to sweep it with automatic thin/manual thin taking element as solid shell. I am not able to, Ansys gives me the error message as shown in the figure. But I think the part satisfies the source and target but still not able to mesh, I do not know why ! Can anyone help me?

[Keyur Kanade]

Can you please try multizone option. nPlease check geometry in SpaceClaim. nSelect geometry in structure tree --> Use right click --> Select Check Geometry. nThe geometry should be error free to proceed. nIf geometry has any errors, please modify/recreate geometry at those places. nRegards,nKeyurnGuidelines for Posting on Ansys Learning ForumnHow to access ANSYS help linksnn

[ApurbaDeka]

Hi ! I checked the geometry as you said but no any problem found.n I think, multizone will create mesh with solid element. I am interested in solid shell element which can be called only in automatic thin/manual thin sweep option. Please correct me if I am wrong.nnRegards,nApurban

[Aniket Chavan]

Yes, you are correct, only thin sweep creates solsh elements. Have you defined sources correctly in manual thin method? Also, the model looks a bit thick to me for thin meshing:n-AniketnHow to access Ansys Online Help Documentn

[ApurbaDeka]

Hi Aniket! Yes, I tried all possible source selection. I am attaching the CAD file. I let you try to do thin sweep. Please let me know what do you think? Model dimension as follows:nlength: 800 mm and thickness: 60 mm. nI think it qualifies for the solsh element. I will go through the link you sent. Thanks!nn

[ApurbaDeka]

Hello !nThe problem is resolved thanks to your link ! It was failing the third requirement of thin model sweeping - The model must have an obvious "side" that is perpendicular to the source and target; all of the side areas must connect directly from source to target. nIn the model if you notice, the angle between the largest and smallest faces are 90.1 degree in one side and 89.9 degree in other side. So when I create a new body with 90 degree it works.nI have another doubt regarding mesh size in the same problem. If I use mesh size less than equal to 27,8 mm my mesh fails and if I use mesh size more than equal to 27,9 Ansys creates mesh with solsh element. Is the mesh size relate to the thickness and the lenghth of the model? Here thickness :60 mm and length:800 mmnArrayArrayn

[Aniket Chavan]

Ansys staff cannot download images or other files on the student portal, so if you want to reach a larger audience to get answers from, please insert the images inline. Also, yes it will depend on the thickness which size should be used. nSo just checking does increasing sweep num divs help:nn

[ApurbaDeka]

Hello Aniket ! Thanks for the reply. I changed the sweep number division upto 20 ( through gradual increasing and checking) but it does not help. It seems like for a particular thickness, the mesh size is limited to a particular size. n