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i want to model a torsion spring, which create torsion in only cloclwise and freed in other direction, how to c
reate
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
By the way, this is a nonlinear model, so you need to run a nonlinear static loadcase.
Here an example, using PBUSH1D. It is considering translational DOF, but the isea is the same.
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thank you sir
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