Re: [PSUBS-MAILIST] Re: Stiffiners on Heads

I am referring to Sean comment on parallel circumferential inner stiffeners. I was visualizing standard T stiffeners. The web should be cut with plasma cutter and also the flange but the flange would have to be rolled into a cone shape. All of this would have to be positioned correctly and each of these circumferential stiffeners would be a different circumferential length. Doable but for me at least, a bit harder to fabricate.

Cliff

From: Jon Wallace <jonw@psubs.org>
To: personal_submersibles@psubs.org
Sent: Mon, November 2, 2009 3:45:31 PM
Subject: Re: [PSUBS-MAILIST] Re: Stiffiners on Heads

Cliff,

Curious about your comment here since it looks like with a beveled edge on the stiffener and a full penetration weld this should not be too difficult. Can you give more context on any fabrication problems one might run into?

Jon

Cliff Redus wrote:
>
>
>
> As to parallel circumferential stiffeners, I did not try this. For sure they would work better than radial but I did not try them in my FEA analysis so I can't comment on their effectiveness or lack thereof. It would not be easy to fabricate this type of inner stiffener.
>

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