Hi,
I am having nozzle in angle with vessel centreline(skewed nozzle).
Can anybody specify how to specify its axial,longitudinal and circumferencial axis for determining loads and moments.
I think we need to check in local element forces and X axis is always axial(correct me if I am wrong) how to determine other two axis (longitudinal and circumferencial).




Regards,
Manny

The vesselmanufactor give allowable loads axial, longutudinal and circuferencial. Then its easy to refer global restraint loads X,Y,Z.
If you have local allowable loads then take local force,moments an the node. Look the definition local coordinatesystem in Caesar.

When you have a nozzle that comes out at an angle that does not fall along the X or Z axis system, I usually make a copy of the model file and then rotate the whole model so that the nozzle fall on an principal axis. This will then give you forces/moments at your nozzle that are then easy to compare to a load table.

Caesar is just a giant, fancy calculator. Let it do the work of crunching numbers for you (in this case, rotating and transforming the coordinate system) so that you can use your brainpower to do the analysis on the data provided.