Will trade a whole CD full of cad files for an FEA on this 30 mm wide steel
ring.

The 40 mm dia. steel rollers exert a force of 2000 pounds or 900 Kg radially
outward. I also would like the contact stresses as well if possible.

The Rockwell hardness is C64.

BTW does anybody know of any affordable FEA software?

Paul Lamar ...No rotor no motor.

Ben wrote:
> Paul,
>
> I will need more information about the material.
>
> Do you have a yield, tensile?


-----------------------------------------------
4340 lets see what the book says at Rc 64.

560 MPa yeild or 81,000 psi. Figure the modulas of elasticity at 30 million.

I could be a little off here and there.

Paul Lamar ...No rotor no motor.

Paul,
I have been looking for FEA software since last Summer when I acquired
the SQ2000 project with the top cut off.  The whole CAD/CAM scenario is
changing almost monthly.  Here is the lowest cost stuff I've found.

Since you have a Linux system, you may want to check out the open source
package called Calculix.  I have not finished setting up my Linux box,
so, I haven't tried it yet.  This is the most promising package I've
found.  Here are some links:  http://www.calculix.de  and
http://www.calculix.de/fw05lat.html.

Also there is a Yahoo group devoted to Calculix:
http://groups.yahoo.com/group/calculix/.

Here is a site with some FEA calculators that run from the web:
http://engineering.ipfox.com/

The demo version of  VisualFEA may be all you need for the 2-D planetary
set analysis:  http://www.visualfea.com/index.html

If you are a student you may be able to get this one for free:
http://fea.5thn.com/.  It is designed to integrate seamlessly with
DesignCAD and TurboCAD, but, it will probably work with standard file
formats from other CAD programs.

Aubrey


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