[PSUBS-MAILIST] conical transitions

[brian]

Would the same apply to a cylinder to sphere transition?  On mine I'm planning on a 1" thick collar welded to the sphere then the cylinder to that .
brian
-----Original Message-----
From: "Hugh Fulton" <hc.fulton at gmail.com>
Sent 1/7/2014 12:45:24 PM
To: "'Personal Submersibles General Discussion'" <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] conical transitionsHi All,  I have been through that problem and you have to have a good sized stiffener there of some sort.  I could not afford the room as an intrusion of internal space.This is the solution and the angle of the additional reinforcing cone is 22.5 degrees being half the 45 degrees of the cone.  This survived an FEA analysis.  The end of the cone is where my window was attached.This was a 48” shell  .  Regards,  Hugh      From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Jon WallaceSent: Wednesday, 8 January 2014 8:10 a.m.To: Personal Submersibles General DiscussionSubject: Re: [PSUBS-MAILIST] conical transitions 
Joe, ABS says stiffened cones are to have their ends bounded by two heavy stiffeners each located as close as possible to the point of cone-to-cylinder transition.
The stiffener is not located on the weld line but as close as possible to it.
JonOn Tuesday, January 7, 2014 5:30:16 AM, Joe Perkel <josephperkel at yahoo.com> wrote:David,
            Is that T ring directly on the weld line, or offset any distance?
            Joe
            Sent from Yahoo Mail for iPad 
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