Static Displacement constraint not working

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

Hello Guys, I am trying to optimise Carbon fibre's square plate with Opti struct as a solver. For optimisation, my objective is to minimise the mass and constraint on the particular node's displacement( which is 25 mm ) in the direction of application of force. When I am running optimisation I got a message 'OPTIMIZATION HAS CONVERGED.
  
 FEASIBLE DESIGN (ALL CONSTRAINTS SATISFIED).' But the displacement of constraint node is 40.32mm. I am not understanding why static displacement constraint is not working in my case. Could you guys please help me?

Thanks for your help.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Hi Sanket,

     

    Looks like the model is not properly constrained. Can you share the complete .out file?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017
    Altair Forum User said:

    Hi Sanket,

     

    Looks like the model is not properly constrained. Can you share the complete .out file?

     

    As per you said I sent you .out file.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Sanket,

     

    Can you share the .fem file, I dont see anything unusual in .out file.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017
    Altair Forum User said:

    Sanket,

     

    Can you share the .fem file, I dont see anything unusual in .out file.

     

    Hello Prakash,

    I sent you .fem and .hm file

    Thanks

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Sanket,

     

    Your optimization results are correct, maybe you should change the setup of optimization.

     

    You have constrained the displacement of node 491 to 25 and this is respected.

    <?xml version="1.0" encoding="UTF-8"?>Sanket.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017
    Altair Forum User said:

    Sanket,

     

    Your optimization results are correct, maybe you should change the setup of optimization.

     

    You have constrained the displacement of node 491 to 25 and this is respected.

    <?xml version="1.0" encoding="UTF-8"?>Sanket.PNG

     

    Hello Prakash,

    Thank You so much for your help. Now I constrained the correct node and got correct results. Thanks

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