Different Lattice Types

Altair Forum User

Hi,

Does anyone know what is the difference between different lattice types( type 1, 2 , 3 and 4) in lattice optimization by Optistruct? And how can I get their properties after optimization?

 

Thank you,

Altair Forum User

Hi @smare104

 

Maybe this pictures can help you /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'> 

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Altair Forum User

Thank you very much @Prakash Pagadala. It was really helpful.

 

Regards,

Soraya

Altair Forum User

@Prakash Pagadala I am using the student version of Altair and I did the lattice optimization for a beam. I ran the optimization 4 times by using different lattice types in each trial. At the end I am getting the same  results for any type of lattice. It means the lattice part in the optimized beam is the same for all cases. I was wondering if you know why this is happening? 

 

Thank you,

 

Altair Forum User

Hi @smare104

 

What type of elements are available in your model. Type of element will affect the lattice type. 

Altair Forum User

Hi @Prakash Pagadala thank you for the reply. I used tetra elements. I changed my mesh elements to Quad I could get different lattice types in final result.

So does it mean I should use quad elements to get different lattice types?

 

Thanks,

Soraya

Altair Forum User

Hi Soraya,

 

With tetra you may not get different lattice types. I prefer HEXAs over tetras.