I have received the following stiffness information of a nozzle:

Circumferential Force=5000 N/mm
Radial Force=6666 N/mm
Vertical Force=5555 N/mm

Longitudinal Moment= 11000 Nm/deg
Torsional Moment= 620000 Nm/deg
Circumferrencial Moment= 7700 Nm/deg

The nozzle axis is in Z-direction.

Please guide on how to model it in CsII.

You declare the nozzle in Restraint Field and for each DOF (X, Y, Z, RX, RY, RZ) you insert the appropiate stiffness.

Regards,

I am clear about how to set the force stiffnesses, what I am not sure is about the moment stiffnesses.

Longitudinal moment I beleive it to be set in Rz restraint but ahat about
the Torsional & circumferencial moment stiffnesses?

Thanks

Torsional Moment is the one that creates torque in the nozzle. Z is the nozzle axis Hence Rz = Torsional Moment.
The centerline axis of the equipments is vertical, so Ry= Circumferrencial moment. And the third one Rx = Longitudinal moment. I hope this helps you.

Regards.

Radial and rotational stiffnes values look ok, but the translational stiffness, vertical and circumferential seem to be really low.

Worth a check ?

Thanks for all the replies.