Vessel Skirt Design
Vessel Skirt Design
(OP)
I'm having trouble to define the required thickness of a vertical vessel skirt. I didn't find anything at ASME VIII Div I and the analisys seems to be very complicated without a FEM program.
The stress analisys is easy and can be made considering the bending moment and compressible loads. My problem is to deal with the buckling which seems to be the limitating factor.
Can anybody help me?
Thanks.
The stress analisys is easy and can be made considering the bending moment and compressible loads. My problem is to deal with the buckling which seems to be the limitating factor.
Can anybody help me?
Thanks.





RE: Vessel Skirt Design
You're on the right track. Though Section VIII does not deal with support design, it is common to determine the compressive stress due to weight and bending and use Section VIII allowable longitudinal compressive stresses as the acceptance criteria. See VIII-1 UG-23(b).
jt
RE: Vessel Skirt Design
So, those allowable longitudinal compressive stresses already take into consideration the possibility of buckling. Isn't it?
RE: Vessel Skirt Design
RE: Vessel Skirt Design
Yes, buckling is considered in the allowable compressive stress charts.
jt
RE: Vessel Skirt Design
Andy
RE: Vessel Skirt Design
Isthill, I'll download this book. Thanks.
RE: Vessel Skirt Design
You will find it does a very good job for you and you can add additional loads where you wish.
They have a thread going here somewhere.
Regards,
Allen
Sindel & Associates
www.consulting.awsindel.org
RE: Vessel Skirt Design
PS if I designed more than a vessel a decade these days, I would of course have a computer based design program.