Restraint stiffness

[DSB123]

Hi All,
I was just wondering what people think is the best way to introduce a restraint stiffness value into an ANSYS structural model.

Say we have a structure that is modelled as being fixed in the X and Z directions translationally at certain locations. However on closer investigation we need to introduce some flexibility of the X translational restraint. What is the best method of doing this?

 

[Drej]

Try attaching spring elements at the constrained points, with an appropriate spring stiffness matching that which represents this flexibility you require.


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[johnbridge231]

Normally, the horizontal springs that provide a restraint have the half stiffness of the vertical ones. As a rule of thumb!

Analysis and Design of arbitrary cross sections
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