[PSUBS-MAILIST] 1-ATM design

[Alec Smyth via Personal_Submersibles]

Hi Peter,

Welcome, and I wish I'd had that assignment in college! The blue cells are
calculated, but for that to happen you need to populate the white ones. For
example on your first screen shot, the material properties in column D have
not been entered.


Best,

Alec

On Sat, Aug 20, 2016 at 6:16 AM, Petar Topljak via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hi everyone,
>
> My name is Petar and I am coming from Rijeka, Croatia.  I am designing
> 1-ATM one man submersible as a project for one of my subjects at my
> university.
>
> The idea is to design a pressure hull that can safely whitstand pressure
> at 150 meters. Procedure is to design submersible according to ABS (or ASME
> or any else classification company) rules, create model using 3d modelling
> software and do a finite element analysis of the model.
>
> The problems I ran into are in using the spreadsheet, as there are some
> parameters that are not defined in the ABS rules, or I am not able to find
> them or understand them due to my english skills, + we use metric system,
> so changing creates additional problems.
>
>
> I understand the classic questions asked about the lobes and coefficients
> (eta), but i had issues with Tw, Lw Lf and tf parametres - "mail3
> stiffener.png" am I doing it right ?
>
> I am also sending you screenshots of my sheet, so you can check it if you
> like and alert me for any possible mistakes.
>
> Thank You in advance, Petar
>
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