Topology optimization sensitivity

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

I would like to perform topology optimization with one dimension minimization as an objective (e.g dimension in x direction). I wonder if there is any possibility to do this in Optistruct? Maybe there is some way to directly deliver topological sensitivity of the objective to solver.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2018

    Hi @curky

     

    Could you please let us know more about the model and analysis?

     

    Is it 3D or 2D?

     

    What are the constraints and objective, etc...

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2018

    At this moment this is only a concept so I don't have a specific model.

    For a purpose let's consider a 2D rectangular design space. it is supported on the two lower corners, and loaded over entire lower edge (like a bridge). I would like to minimize the height of this bridge under stress constraint. At this moment there is no possibility to set the height of current iteration as a response thus it can't be used as a n objective.

    I can estimate corresponding sensitivity by myself, by I don't know if it is possible to tell Optistruct to use it.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2018
    Altair Forum User said:

    For a purpose let's consider a 2D rectangular design space. it is supported on the two lower corners, and loaded over entire lower edge (like a bridge). I would like to minimize the height of this bridge under stress constraint. At this moment there is no possibility to set the height of current iteration as a response thus it can't be used as a n objective.

    I can estimate corresponding sensitivity by myself, by I don't know if it is possible to tell Optistruct to use it.

    How about using Shape optimization to change the height (changing the shape)?

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