[python] Re: Wheel size and centrifugal force

Hello Tim,
You are right: I remember, that we had that subject some years ago und we came to the conclusion that the gyroscopic effect has no big influence in pythons. The websites that might be interesting are: 

http://www.gyroscopes.org/math.asp
http://hyperphysics.phy-astr.gsu.edu/hbase/mechanics/bicycle.html

Cheers,
Jürgen.


On 08.09.2007 04:40, 25hz wrote:

I remember the whole centrifugal force point came up a while back and
 someone even managed to find a website that allowed you to enter a
bunch of parameters and calculate the force generated by a rotating
mass (wheel).  It turns out that the highest forces are
felt/generated when all three rotational axis intersect.  The
centrifugal force effect really drops off fast when you remove one of
the pivot axis and drops off even faster the further you move it from
the point the other axis intersect.  In the case of the pythons, the
pivot is the "yaw" axis, the axle is the rotational axis, and the
front tire's contact patch with the ground is the roll axis. It's fine to spin a wheel and feel the centrifugal effect, but when you 
add the actual dynamics of the python's frame design, there's very
little effect left at all.  The same rule applies to normal diamond
frame bikes.  The mass of a spinning object has far more effect than
the size/diameter.


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