Dan Ruggirello wrote:

Howdy Paul,
Couldn't resist getting this model going.  Here are some results.  I

constrained the 6 engine

mount locations in XYZ and applied a 360lb load in the Y direction 20

inches away.  These results

are von-Mises stress.   Max stress is really artificial since it is

where the nodes are

constrained and can generally be ignored for the plate.  Max stress I

would estimate at about

16ksi, therefore, lots of low stressed material in this load case as you

can see.

Per MIL-HDBK-5, Ftu=42ksi and Fty=38ksi for 6061-T651 plate.

This model is really just a test to make sure it is working and it looks

good so far.  Next step

could be to somehow constrain the ears appropriately.  Hmmm.


Got any displacement data from the test?

Dan

That is just too COOL Dan!!! Looks like we should taper the ribs.
NEAT!!!

Thanks a bunch for doing this.

Jerry, do you remember how far it deflected when you put the 600 foot
pounds bending load on the motor plate?

Paul Lamar

Dan's quick & dirty FEM confirms my gut feel for where the max stress
occures.  Max right next to the body of the gear housing and very little out
near the edges.  Thanks for the sanity check Dan.

Tracy Crook

 
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