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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><p dir="ltr">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.</p>
<p dir="ltr">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.</p>
<p dir="ltr">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.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On April 10, 2014 2:37:02 PM MDT, Hugh Fulton <hc.fulton@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">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<p></p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><p> </p></span></p><div><p class="MsoNormal"><span lang="EN-NZ" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><p> </p></span></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><p> </p></span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Sean T. Stevenson<br /><b>Sent:</b> Thursday, 10 April 2014 4:58 p.m.<br /><b>To:</b> Personal Submersibles General Discussion<br /><b>Subject:</b> Re: [PSUBS-MAILIST] K3000 spherical shell calculations<p></p></span></p></div></div><p class="MsoNormal"></p><p> </p><p class="MsoNormal">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.<br /><br /><br /><img width="950" height="725" id="_x0000_i1025" src="content://com.kaitenmail.attachmentprovider/95768b08-e429-4c54-bd53-00c61aa2e171/35/RAW" /><br /><br /><img width="950" height="725" id="_x0000_i1026" src="content://com.kaitenmail.attachmentprovider/95768b08-e429-4c54-bd53-00c61aa2e171/36/RAW" /><br /><br /><br />__________ Information from ESET NOD32 Antivirus, version of virus signature database 9658 (20140410) __________<br /><br />The message was checked by ESET NOD32 Antivirus.<br /><br /><a href="http://www.eset.com">http://www.eset.com</a></p><p></p></div> <br /><br />__________ Information from ESET NOD32 Antivirus, version of virus signature database 9658 (20140410) __________<br /><br />The message was checked by ESET NOD32 Antivirus.<br /><br /><a href="http://www.eset.com">http://www.eset.com</a><br /> <p style="margin-top: 2.5em; margin-bottom: 1em; border-bottom: 1px solid #000"></p><pre class="k9mail"><hr /><br
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