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Bill I actually haven't done any FEA on the engine
mount [I have the capability just never did it] as the mount was just for
representaion only. Its also a copy of what Paul L advocates as far as mounts
are concerned. It uses the Bill Schertz beam across the front with a rod end
style link to support the back end of the engine. In reading a previous email of
yours I assume your using Inventor? If it helps you, I could do some
FEA stuff for you to give you an idea as to what this style of mount is capable
of.
Of course the standard disclaimer
applies, I'm not an Engineer, I can't/won't stamp any design I publish,
and PROMISE that at some point it will fail, [No
garrentee's at what point/load that is] Users beware, Use at your own risk to
life and limb. ETC Also this program I
use for FEA is to be considered as a guide only! And actual results will
very.
[I hope that doesn't sound to harsh, I just don't
want to be responsible for someone using this info and it creating a
problem]
If you have a better or different idea as to a
design by all means send it along and I'll pass on the results as viewed by the
program.
I use Solidworks for all my design stuff as well as
CosmosExpress for the FEA side of things. I love doing design work
regardless of what side of aviation it involves, and hope I can help in some
way.
Jarrett Johnson
----- Original Message -----
Sent: Sunday, April 10, 2005 10:12 PM
Subject: [FlyRotary] Re: RV10
Cowl
> Since I'm playing around with making my own engine mount, I looked
> carefully at the engine mount in your CAD drawing. I have a couple of
> questions.
>
> 1) Did you do a finite element analysis on
the mount you have drawn?
>
> 2) I don't see anything aside from
the one C channel supporting the engine.
> I don't understand how this
would be able to react the loads.
>
> I'm in the middle of modeling
the standard RV-7 Lycoming Dynafocal mount
> so I can do FEA to determine
what g loads it will withstand and what it's
> vibrational modes are.
When I finish "reverse engineering" the standard
> mount, I'll design my
own RX-8 mount to withstand the same loads.
>
> Any clue what sort
of loads one should expect the engine mount to withstand?
>
> Bill
Dube <LED@Killacycle.com>
>
http://www.killacycle.com/Lights.htm
>
>
>
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