Hi all,

I am working on 4 no. of heat exchanger package connected through bellow on shell side & direct pipe spool piece on tube side.
In order to qualify nozzle loads for direct pipe spool piece nozzle, we need to remove or provide the bolted arrangement of fixed & sliding saddle say with 3mm gap. Client agrees with our this proposal ..however, client ask to insert a spring washer in between the bolted fixed & sliding saddles of heat exchanger.

Now, how to model this in CAESAR II?

Also, what preload value we need to include for washer in CAESAR II?

Please provide your expert opinion on this

thanks