RE: [PSUBS-MAILIST] FEA

[Tim Reilly <TimR@cclengineering.com>]

Thanks

Tim R.

-----Original Message-----
From: Warren Greenway [mailto:opensourcesub@yahoo.com]
Sent: Thursday, March 20, 2003 10:00 AM
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] FEA


Someone, I believe it was Steve...Anyhow, someone
posted
a link to free FEA software. Contact Autodesk, I
believe
they had some limited FEA plugins that are intended to
sell you on the full featured versions. And remember
that the problems Ford is having with blocks, heads,
and
transmission cases cracking wide open is due to a
reliance on FEA. FEA gives you a figure to work with,
but please assume that it is very generous and over
build.

Warren.

--- Tim Reilly <TimR@cclengineering.com> wrote:
> Is there a cheap program or share ware program that
> I can get to do this.
> 
> The cad programs I currently use are Autodesk
> Inventor 5.0 and Autocad 2002
> 
> Thanks again 
> 
> Tim R.
> 
> -----Original Message-----
> From: jbarlow@bjservices.ca
> [mailto:jbarlow@bjservices.ca]
> Sent: Thursday, March 20, 2003 8:12 AM
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] FEA
> 
> 
> 
> Finite Element Analysis.
>       A virtual model of an object is "built" in a
> computer and the program
> breaks it down into a finite number (but very large
> number) of pieces
> (elements) which have the applied material
> properties and interact with
> their neighbours.  An operator then applies a load
> and (mostly pressure in
> this case) the program will spit out the stress that
> each area of the model
> in under.
> The reality of the answer relies on the way the
> model is built up, the
> correct placement and magnitude of the applied loads
> by the operator.  You
> can get orders of magnitude difference between
> answers by slightly changing
> the applied loads and the method of model
> construction.
> 
> 
> Jay.
> 
> 
> 
> 
>  
> 
>                       Tim Reilly
> 
>                       <TimR@cclengineering.com>     
>    To:
> "'personal_submersibles@psubs.org'"
> <personal_submersibles@psubs.org>
> 
>                       Sent by:                      
>    cc:
> 
>                       owner-personal_submersible    
>    Subject:
> [PSUBS-MAILIST] FEA
> 
>                       s@psubs.org
> 
>  
> 
>  
> 
>                       20/03/2003 08:53 AM
> 
>                       Please respond to
> 
>                       personal_submersibles
> 
>  
> 
>  
> 
> 
> 
> 
> 
> Please forgive my ignorance, but what is FEA as
> refered in this message?
> 
> Thanks
> 
> Tim R.
> 
> -----Original Message-----
> From: Warren Greenway
> [mailto:opensourcesub@yahoo.com]
> Sent: Wednesday, March 19, 2003 9:57 PM
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] OSS Pressure Hull,
> DoubleEndcap
> 
> 
> You rock. Thanks for the rendering, that is cool.
> A detailed 2D drawing would be great. It is Cosmos
> FEA that is really giving me the headaches. I have
> to rebuild all of the hull as a series of swept
> features to run the FEA. Not a huge deal, but I have
> been insanely pressed for time. I am working on it,
> though. I think this hull has the potential to give
> you high speed, if you want it. Hey, Pierre, you
> have any luck with FEA on this?
> 
> 
> 
> 
> 


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