Torsion spring

emkrishna
emkrishna Altair Community Member
edited October 2020 in Community Q&A

i want to model a torsion spring, which create torsion in only cloclwise and freed in other direction, how to c

reate

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Answers

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited August 2020

    Assuming that you're using OptiStruct you can create a spring CBUSH and associate a PBUSH property.

    Imsode the PBUSH you are able to add a nonlinear curve (TABLED1) in the PBUSHT field for the rotational DOF.

    The TABLED1 you can create a force x displacement curve and add a stopper in CCW.

    Please take a look at OptiStruct documentation and look after PBUSH/PBUSHT

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited August 2020

    By the way, this is a nonlinear model, so you need to run a nonlinear static loadcase.

  • Adriano A. Koga
    Adriano A. Koga
    Altair Employee
    edited August 2020

    Here an example, using PBUSH1D. It is considering translational DOF, but the isea is the same.

    Unable to find an attachment - read this blog

  • emkrishna
    emkrishna Altair Community Member
    edited August 2020

     

     

    thank you sir

     

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