Lug on elliptical head
Lug on elliptical head
(OP)
Hi people, I'm having troubles in modelling a lifting lug that is placed on a 2:1 elliptical head (see attached image). My questiona are:
Is it possible to model this geometry in Compress?
What does ASME Code say about this?
Is there some way to calculate stresses by hand for this case without applying FEA?
Can you suggest another way to place the lugs? I don't have space on the top of the vessel.
Thank you very much!
Is it possible to model this geometry in Compress?
What does ASME Code say about this?
Is there some way to calculate stresses by hand for this case without applying FEA?
Can you suggest another way to place the lugs? I don't have space on the top of the vessel.
Thank you very much!





RE: Lug on elliptical head
RE: Lug on elliptical head
Have you considered using QTY(4) lift lugs on the shell? Orient them at 45° and 315° directly across from each other in pairs and design appropriately. This should result in standard lift lug calculations and WRC 107 analysis to analyze the shell stress.
RE: Lug on elliptical head
If it is indeed a small vessel , perhaps it could be lifted by slings encircling the vessel but hard-up against the saddles.
IMHO, four lifting lugs on a tiny vessel is a bit of overkill
MJCronin
Sr. Process Engineer