Calculate mass of topology optimisation

Tom Southall
Tom Southall Altair Community Member
edited October 1 in Community Q&A

I ran a topology optimisation simulation using OptiStruct where I minimised the compliance of the part. I've opened the part in HyperView and I want to know what the mass is of the optimised solution. How can I do this?

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  • Johan Dahlberg_20306
    Johan Dahlberg_20306
    Altair Employee
    edited October 1 Answer ✓

    Hi Tom
    Normally we recommend a iso-plot value around 0.3 to visualize the remaining structure. The final mass due to the optimisation is printed in the .out file! However, this does not normally corresponds to your final realized design since you might need to add/close/bridge the iso-plot in order to make the part manufacturable!
    To "realize" the part you can either use polynurbs to define a new cad or you can do a shrink wrap mesh around it do capture the features you want to keep!
    In this e-learning (section Topolgy Optimization & Design Interpretation) you can find some more info!
    Altair OS Optimization Basics 2022.2:

    Hope this helps!
    //Johan

Answers

  • Johan Dahlberg_20306
    Johan Dahlberg_20306
    Altair Employee
    edited October 1 Answer ✓

    Hi Tom
    Normally we recommend a iso-plot value around 0.3 to visualize the remaining structure. The final mass due to the optimisation is printed in the .out file! However, this does not normally corresponds to your final realized design since you might need to add/close/bridge the iso-plot in order to make the part manufacturable!
    To "realize" the part you can either use polynurbs to define a new cad or you can do a shrink wrap mesh around it do capture the features you want to keep!
    In this e-learning (section Topolgy Optimization & Design Interpretation) you can find some more info!
    Altair OS Optimization Basics 2022.2:

    Hope this helps!
    //Johan

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