>
> Paul,
> I know of two programs that are free and appear to be
> fairly simple to use. One is called "Framework" and can
> be found here: http://home.wanadoo.nl/wolsink/
snips....
> Aubrey
I down loaded this one but the input is metric.
Looks pretty good. The user interface is a bit strange
but typical of foreign programs. It is amazing how
the programmers native language (Dutch) affects the look and
feel of a program's user interface.
I got hung up by this.
I need a few numbers in metric.
Density of steel? Kg/Meter^3
1 lb/ft³ EQUALS 16.018463374 kg/m³
Modulus of elasticity of steel? Kn/Meter^2
1 lbf/in² (psi) EQUALS 6894.757293168 N/m²
(I think this is the right one.)
From:
http://www.processassociates.com/process/convert/cf_all.htm
Poisson ratio but as I recall that is dimensionless
and as I recall it is 3 but I could very well be wrong.
Poisson ratio is probably about .28
see
http://tinyurl.com/5rfs7
amd
http://tinyurl.com/jt87j
Here is a dxf of my test space frame.
The program loads and reads this file OK.
Paul Lamar ...No rotor no motor.
--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
Custom Cables for your rotary installation -
http://www.roblinphoto.com/shop/
Steel density in english units is .3 pound per cubic inch.
Modulas of elasticity is 30,000,000 something or other
in the english system. I think it is inches per inch
deflection per psi of force or something like that.
One never really knows as the units are rarely mentioned.
--
Paul Lamar ...No rotor no motor.
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