FRF Optimization

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

I'm trying to optimize a 'building'.  SPCD are applied as an acceleration at the base of the structure.  

 

Responses:

volumefrac

frf displacement - dof1 @ top of structure @ 3.2Hz

 

dconstraint

displacement constraint - 0.015 (analysis shows displacement = 0.01752 @ 3.2Hz

 

objective

min (volumefrac)

 

optimization

the optimized shape does not look right.  by eliminating the element densities, the entire model disappears.  I'm not sure if i am doing something wrong?

 

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    Hi,

    Could you try segregating model in to design and non design region (constraint  location)?

    Its recommended practice for topology optimization.

     

    Regards

    Rahul R

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2016

    I am allowing the entire model to be a designable region. 

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    Try with manufacturing constraints for topology optimization. 

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