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How can I calculate the spring coefficient (k) of leaf spring in Adams/Car?

canpolatb20
I've created a leaf spring using "Leaf Spring Editor". However, I've been struggling to draw its Load/Deflection diagram. For that purpose, which parameters should I use in x-axis and y-axis in the postprocessor interface?
 
For instance, I've been choosing "lfl_seat_leaf_spr_XFORM.Z" for x-axis and "lfl_axle_bush_leaf_spr.FZ" for y-axis but I am not sure that is the correct way to determine its vertical spring coefficient.
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    You can assemble the leafspring with a rigid axle suspension subsystem, and then simulate a parallel wheel travel event using suspension testrig. Use rigid tires (extremely high stiffness) Then plot "Wheel load vertical force" vs "Wheel travel" plot for any side (left or right). This should be near the stiffness of the leaf spring.
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    You can assemble the leafspring with a rigid axle suspension subsystem, and then simulate a parallel wheel travel event using suspension testrig. Use rigid tires (extremely high stiffness) Then plot "Wheel load vertical force" vs "Wheel travel" plot for any side (left or right). This should be near the stiffness of the leaf spring.
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