Control Card value on Thermal Analysis

RodrigoFST_22268
RodrigoFST_22268 New Altair Community Member
edited October 2020 in Community Q&A

Hi there,

 

I'm doing a thermal analysis using OptiStruct. I have 32 constrained nodes that require a diferent temperature value. However this value comes from a linear interpolation between the two end nodes (one has a 0ºC temperature and the other 4,5ºC temperature). Is there any way I can use a linear function for the nodes in Card Edit?

 

<?xml version="1.0" encoding="UTF-8"?>Captura de Ecr (13).png

<?xml version="1.0" encoding="UTF-8"?>Captura de Ecr (14).png

<?xml version="1.0" encoding="UTF-8"?>Captura de Ecr (17).png

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Answers

  • Mario_21478
    Mario_21478 Altair Community Member
    edited May 2018

    Hello,

     

    Try to use the following way:

     

    • Create the load on start and end of line (see picture 1)
    • Switch to 'nodes' as target type
    • Switch to 'linear interpolation' for type of load (default is constant value)
    • Select the nodes between start and end for 'nodes' (e.g. by path)
    • Select the start and end load for 'loads'
    • Press create, a linear interpolation is done and loads are created (see picture 2)

     

    Best Regards,

    Mario

     

     

    <?xml version="1.0" encoding="UTF-8"?>image.thumb.png.7adae6ea9d2921ba18031260204d9f5d.png

     

    <?xml version="1.0" encoding="UTF-8"?>image.thumb.png.8a2f982b7d384d409b4ae9bb3d82e6b0.png

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    If you are OK without SPCs you can use TEMPERATURE panel to create temperature entries with linear interpolation, 

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

  • RodrigoFST_22268
    RodrigoFST_22268 New Altair Community Member
    edited May 2018

    My question is: If I use the temperature instead of the SPC does the solver outputs the same results?

    Thanks for the help!

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Hi @RodrigoFST

     

    Sorry for a late reply, do you mean using temp as load type in same steady-state heat transfer analysis type?

  • RodrigoFST_22268
    RodrigoFST_22268 New Altair Community Member
    edited May 2018

    Prakash Pagadala 

     

    Yeah, that is my question!

     

    Thanks

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2018

    Hi RodrigoFST,

    Altair Forum User said:

    My question is: If I use the temperature instead of the SPC does the solver outputs the same results?

    Thanks for the help!

    You'll get different results.

     

    Thank you

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