Adding a spring to the model

User: "Ovunc"
Altair Community Member
Updated by Ovunc

Hello, 

I have a sandwich assembly. One of these layers is the spring. This sandwich structure is fastened together with bolts. The simplified form is below. During the assembly phase, the spring is mounted under pressure.

How do I add this spring to the model? But I want to add it in 3D, not as a spring element.

image

Thank you. 

Best Regards, 

Ovunc

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    User: "RobinsonFerrari"
    Altair Employee
    Accepted Answer
    Updated by RobinsonFerrari

    Hello @Robinson Ferrari

    Do you have any advice on topic?

    Thank you so much. 

     

    Best Regards, 

    Ovunc

    Hi Ovunc,

    I'm sorry for the delay, I was on vacation.

    1 - Please take a look at the file attached as an example. You don't need to inform the path, just keep the .h3d file in the same folder.

    2 - The .blk file was used only as an example. It's a text file, in your case you will use the .h3d file.

    3 - For using CNTNLSUB you need to use nonlinear even for load step 1. However, you can define the continuation from load step 1 for the other subcases (for example, subcase continuing from subcase 1 and subcase 3 continuing from subcase 1 as well).

    Please, take a look at this session from our documentation for INISTRS: https://2022.help.altair.com/2022/hwsolvers/os/topics/solvers/os/inistrs_bulk_r.htm?zoom_highlight=INISTRS

    I would like to recommend our OptiStruct Non-Linear training, it's free. You will have access to all OptiStruct non-linear capabilities, including INISTRS, CNTNLSUB, and so on.

    Thank you very much,