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Spring Elements > Stiffness parameters

Input or modification of the spring constants Cx, Cy, Cz, CMx, CMy, CMz of Linear Spring Element as well Compression-Only Springs and Tension-Only Springs.

For Compression-only springs the effective spring constant in the XL-direction is Cx for negative forces Fx (spring in compression), and zero for positive Fx.

For Tension-only springs the effective spring constant in the XL-direction is Cx for positive forces Fx (spring in tension), and zero for negative Fx.

Any specified spring constants apart Cx are universally valid for both, compression-only springs as well as Tension-only springs (values Cy, Cz, CMx, CMy, CMz).

SettingDescription
From/To/Step Element series, for which the section properties are input/modified.
Element type Type of the element(s)  (see Structure > Elements > Info )
Aero class / EccType Irrelevant in this context
Cx Cy  Cz Spring stiffness for the displacements in local x, y and z direction.
CMx  CMy  CMz Rotational spring stiffness for rotations around local x, y and z axis.