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Control Card value on Thermal Analysis

User: "RodrigoFST_22268"
RodrigoFST_22268
New Altair Community Member
Updated by unknown

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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    User: "Mario_21478"
    Mario_21478
    Altair Community Member
    Updated by Mario_21478

    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

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    Updated by Altair Forum User

    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

    User: "RodrigoFST_22268"
    RodrigoFST_22268
    New Altair Community Member
    OP
    Updated by unknown

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

    Thanks for the help!

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    Updated by Altair Forum User

    Hi @RodrigoFST

     

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

    User: "RodrigoFST_22268"
    RodrigoFST_22268
    New Altair Community Member
    OP
    Updated by unknown

    Prakash Pagadala 

     

    Yeah, that is my question!

     

    Thanks

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    Updated by Altair Forum User

    Hi RodrigoFST,

    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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