meshing irregular solids

ragopesa
Posts: 24
Joined: Thu Jun 08, 2023 12:08 am

meshing irregular solids

Post by ragopesa » Mon Jan 29, 2024 1:08 pm

Dear Stko team,

I hope you are doing well.

I have some issues with making a mesh in irregular solids. Could you please guide me how to do it?. Please find attached an example.

I already can run analysis and so on, but when I change to irregular "figures" the meshing just fail. :shock:

Best,
Salvador
Attachments
test01.zip
(118.42 KiB) Downloaded 210 times
Salvador Ramos

kesavapraba
Posts: 315
Joined: Sat Mar 28, 2020 2:25 pm

Re: meshing irregular solids

Post by kesavapraba » Wed Jan 31, 2024 4:31 pm

Hi, Thank you for your message. It is not clear to us what you mean by "irregular" geometry. Can you please explain it?
:: With best wishes ::
Prabakaran Kesavan

ragopesa
Posts: 24
Joined: Thu Jun 08, 2023 12:08 am

Re: meshing irregular solids

Post by ragopesa » Thu Feb 01, 2024 11:51 am

Hi Kesavapraba !,

Thank you for your reply. I just noticed i upload the wrong example. Please, find attached the correct example.

I will be thoughtful to your reply

All the best,
Salvador
Attachments
example_PSRG02.zip
(971.11 KiB) Downloaded 201 times
Salvador Ramos

kesavapraba
Posts: 315
Joined: Sat Mar 28, 2020 2:25 pm

Re: meshing irregular solids

Post by kesavapraba » Thu Feb 01, 2024 1:36 pm

Hi, It seems there are some issues with geometry (possibility of having very short edges). Have you imported the geometry into STKO? If that is the case, you can export the solid geometry as *.stp file and import into STKO and do merge and then mesh it using unstructured tetrahedron option.
:: With best wishes ::
Prabakaran Kesavan

ragopesa
Posts: 24
Joined: Thu Jun 08, 2023 12:08 am

Re: meshing irregular solids

Post by ragopesa » Thu Feb 01, 2024 4:28 pm

Hi!

Thank you for your quick reply! I did, I imported the geometry. I did your recomendation, but I think the mesh is still wrong.

Could you please guide me?
Attachments
Screenshot 2024-02-01 162657.png
Screenshot 2024-02-01 162657.png (104.25 KiB) Viewed 2174 times
Salvador Ramos

kesavapraba
Posts: 315
Joined: Sat Mar 28, 2020 2:25 pm

Re: meshing irregular solids

Post by kesavapraba » Sat Feb 03, 2024 1:29 pm

Ok, can you please send me the stp file of the geometry? I will try to look at it.
:: With best wishes ::
Prabakaran Kesavan

ragopesa
Posts: 24
Joined: Thu Jun 08, 2023 12:08 am

Re: meshing irregular solids

Post by ragopesa » Mon Feb 05, 2024 12:34 pm

Hi!

Thank you so much for your reply. Please, do find attached the file. I will be thoughtful of your suggestions.

All the best,
Salvador
Attachments
example_PSRG03.7z
(836.02 KiB) Downloaded 186 times
Salvador Ramos

ragopesa
Posts: 24
Joined: Thu Jun 08, 2023 12:08 am

Re: meshing irregular solids

Post by ragopesa » Tue Feb 13, 2024 6:25 pm

Dear Stko team,

Do you have the time to check my file?

Best,
Salvador
Salvador Ramos

kesavapraba
Posts: 315
Joined: Sat Mar 28, 2020 2:25 pm

Re: meshing irregular solids

Post by kesavapraba » Fri Feb 16, 2024 6:58 am

Hi, Sorry I tried my best to figure out the issues in your geometry. I could achieve meshing the top portion only. The geometry of the model is complex, particularly in the lower portion of the model, there can be some short edges that creates the issue. You can recreate the lower portion, add every small geometry in a step-by-step manner and simultaneously check for successful meshing. In this way you can come to know where the issue is.
Attachments
meshing.jpg
meshing.jpg (123.2 KiB) Viewed 1632 times
:: With best wishes ::
Prabakaran Kesavan

STKO Team
Posts: 2297
Joined: Tue Oct 29, 2019 8:45 am

Re: meshing irregular solids

Post by STKO Team » Mon Feb 19, 2024 9:07 am

Also, the main issue with your geometry is that it comes from a STL or Obj (it's clear that it is tringulated). It would be better if you work on a clean geometry

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