Constant thickness topology optimization

Chris84
Chris84 New Altair Community Member
edited October 2020 in Community Q&A

I set up a 2D topology optimization and mostly for faster computation I'd like Optistruct to only vary between the full thickness and 0 for each element. How can I implement that?

And how do I get a usable CAD file out of the 2D result?

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Answers

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited August 2020

    there's no guarantee that your design will be discrete (0 or 1). You can try increasing DISCRETE value in OptiParam panel.

     

    You can use OSSMOOTH panel to trasnform yor shell results into surfaces and save a CAD.

  • Chris84
    Chris84 New Altair Community Member
    edited August 2020

    Thanks, tried that discrete value, but I was hoping to also reduce the computational effort with only 1 or 0 for the thickness

    I tried to figure out using the OSSmooth panel for my surface model optimization, but the iges or step file I get as a result only gives me the surface I started out with. I can't use that in CAD

  • Adriano_Koga
    Adriano_Koga
    Altair Employee
    edited August 2020

    If you have different densities in the end, them OSSMOOTH should work well.

    Make sure you've disabled 'autobead'.

    In the topology, you should point a valid threshold and you should be good to go.

    There are a few tutorials for that in help.

  • Chris84
    Chris84 New Altair Community Member
    edited August 2020

    I did some trial and error and got what I was hoping for in the end. Thanks for your help!

    Also found a good (German) Youtube tutorial by Manuel Ramsaier, that also used a 2D mesh

     

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