1D springs in Mechanical Event Simulation

[9msl1]

Hello

I was using 1D springs (applied to surfaces) in my modal frequency analysis.  When I tried to run a mechanical event simulation the 1D springs disappeared.  I tried to readd them but for some reason MES (runned out of AutoDesk Multiphysics) doesn't have these components.

In my previous model I Has a spring constant of 1.06E6 dyn/cm in the xy axis and a 0.8E7 dyn/cm in the z axis for a particuar surface.

Therefore how to I create individual 1D spring constants in MES?

Thanks

[AstroJohnPE]

You need to draw lines (on a new part number) and define the elements as truss elements. The stiffness of a truss equals cross sectional area times modulus of elasticity divided by the length of the element (k = A * E / L). Since you control all 3 of these values, you can obtain any stiffness needed.

Then put a contraint on the free end of the truss element.