Radopt Design Responses

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

I want to optimize energy absorption of a component in a Radioss model using radopt to include a topology optimization,

 

I have two ideas

 1) Set the force vs displacement (area under curve) in a as my responses to monitor.

 2) Set energy of the component as design response? (not sure if possible)

 

Also, optistruct design responses can be used in this radopt optimizations? (static force could be used for my point 1 )

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hi @Gus.Gzz The first option is feasible. I would suggest you check the supported design responses on RADIOSS help for RADIOSS optimization. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2018

    Thanks Prakash,

     

    The design responses I found on RADIOSS help:

     

    DRESP1

    RTYPE

    Response type for an optimization run.

    (Integer > 0)

    = 1: Mass

    = 2: Fraction of mass

    = 3: Volume

    = 4: Fraction of design volume

    = 5: Displacement

    = 6: Stress

    = 7: Strain

    = 8: Internal strain energy

    = 9: Velocity

     

    DRESP2 for equations 

    Function to be applied to the arguments.

    (Integer > 0 or blank)

    = 1: SUM

    = 2: AVG

    = 3: SSQ

    = 4: RSS

    = 5: MAX

    = 6: MIN

    = 7: SUMABS

    = 8: AVGABS

    = 9: MAXABS

    = 10: MINABS

     

    How can I set the feasible point 1) Set the force vs displacement (area under curve) without force response?

    I've heard that you can set the dresp for the force, maybe I'm missing something,

     

    Regards,

     

    GGB

     

    Hi,

     

    Sorry for the typo error. I was supposed to say first is not feasible. 

     

    You can use Strain energy instead. 

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