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RE: [PSUBS-MAILIST] Hydrodynamic Hatch Viewport Arrangement



James,

I wish you luck with your drilling attempt number two. Yes Solidworks can do a lot of different types of finite element analysis in there Office Premium package of which I have.  I've only used there basic Cosmos Express program that only will test one part at a time, for a limited number of things. But it's a fast way to make sure your on the right track and see were the weakest part of the part is. So now that I have the full Cosmos Works, I've got my homework layed out for me. I was planning on doing some finite element analysis of the K-250 CAD assembly model I'm planning to finish this winter.  Having a K-350 CAD assembly model made up as well to test, would be interesting.

Close to the time when I first joined the group, I was playing around with the Cosmos Express program to show the general accordion failure mode of most submarine pressure hulls, and why I believed horizontal weldments to be useful for not only hydrostatic pressure, but collision protection as well.  Here is a link to the short video clip I put together back then.

http://www.youtube.com/watch?v=rhdzRc_tOVY

I have not done any further work FEA type testing since then, so I guess I better get with it.

Regards,
Brent Hartwig



From: james@guernseysubmarine.com
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Hydrodynamic Hatch Viewport Arrangement
Date: Mon, 28 Jan 2008 11:06:57 +0000

Hi All,
 
I think i fixed my viewport.  Well, ive got it back to how it was at the start. 
I heated it, welded it.  Let it cool slowly and filed the weld flat.
 
But im still not sure what will happen when i drill it again.  Will the heat have made it easier to drill?  Not sure.
 
Have a look here. 
 
 
Brent.  I agree that hatch picture looks great.  Does solidworks do finite element analysis as well?
 
Cheers
James