Cone to Cylinder - Line of Support
Cone to Cylinder - Line of Support
(OP)
Hi
When designing a cone bottom vessel for external pressure, in which case would we design the cone ends as line of support and which case we should not? Should the bottom cone attaching to the cylinder always be line of support? Please advise.
Thanks
When designing a cone bottom vessel for external pressure, in which case would we design the cone ends as line of support and which case we should not? Should the bottom cone attaching to the cylinder always be line of support? Please advise.
Thanks





RE: Cone to Cylinder - Line of Support
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Cone to Cylinder - Line of Support
RE: Cone to Cylinder - Line of Support
If not a line of support, required cone thickness is not less than required thickness of attached cylinder. If a line of support, required cone thickness is calculated by the procedure in UG-33(f)(1). If the cone half apex angle exceeds 60 deg, see (f)(2).
In either case (line of support or not) rules of Apx 1-8 must be met. Additionally, if not a line of support a stiffening ring is required on the attached cylinder(s), so as to define the length "L" per UG-28. See UG-28 for definitions of lines-of-support.
The advantage to considering the junction a line-of-support is that no stiffening may be required on the attached cylinder(s) if Apx 1-8 is satisfied without one.
If the vessel is also subject to internal pressure rules of Apx 1-5 must be followed as well.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand