Hi,

I have to introduce a vessel's nozzle stiffness into the stress analysis software. I am using CAESAR II 4.50. I have radial displacement stiffness and longitudinal and circumferential rotational displacement stiffness. The problem is that I don't know how to model this in CAESAR. I have put a restraint X(1,1,1) type as the radial displacement restraint (with the given stiffness), but I don't know how to model the other two. In fact, is that assumption correct?

Advanced thanks