[PSUBS-MAILIST] K3000 spherical shell calculations

[Sean T. Stevenson]

I haven't actually used the other tools that are available. I wrote the code from scratch on the basis of the equations provided in the ABS rules.  This has allowed me to to error check and verify all of the calculations, make sure they are consistent with the most recent revision of the rules, as well as learn what's going on "under the hood", so to speak.

The interface that I posted screenshots from was never intended as an operating interface - those controls and indicators were just for testing the spherical shell module, although it worked as a standalone program in this instance. I hope to create a fancier GUI for the main application when (if?) I finish it.

I wrote it in LabVIEW, for no reason other than I am familiar with it from my industrial work, and it's easier to debug than C.

Sean


On April 10, 2014 2:37:02 PM MDT, Hugh Fulton <hc.fulton at gmail.com> wrote:
>Hi Sean,  that is a sexy programme.  Is it a rendition of the one on
>psubs
>with Visual basic or another programme that you have developed?  Love
>this
>stuff.  Regards,  Hugh
>
> 
>
> 
>
> 
>
>From: Personal_Submersibles
>[mailto:personal_submersibles-bounces at psubs.org]
>On Behalf Of Sean T. Stevenson
>Sent: Thursday, 10 April 2014 4:58 p.m.
>To: Personal Submersibles General Discussion
>Subject: Re: [PSUBS-MAILIST] K3000 spherical shell calculations
>
> 
>
>Further to this discussion, additional safety factor or design crush
>depth
>beyond the ABS maximum allowable working pressure may be a moot point
>in
>this example, as the payload capacity (net buoyancy) of the shell in
>question (A516 grade 70, 6' inner diameter) becomes negatively buoyant
>at
>only 1152 m working depth, meaning that if you design for deeper than
>that,
>the shell becomes heavy enough that you need supplemental buoyancy to
>stay
>afloat.  With HY-80, the situation improves significantly, extending
>depth
>to 2347 m before going negative.
>
>
>
>
>
>
>
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-- 
Sent from Kaiten Mail. Please excuse my brevity.
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