[python] Re: gyro forces
- From: "daryl bender" <darylbender@xxxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Wed, 19 Oct 2005 10:51:45 -0400
Hi
I'm deep into trying to figure out javascript across multi-frame html
windows (stirring up a choppy sea of nuerons) and then I get this email
(25Hz) about the esoteric topic of the mathematics of gyroscopic precession
(& now have the perfect storm in my head). ;-)
First let me say that my completely *subjective opinion* is that gyro forces
may help here but they likely won't be a solution. I think the frontal
forces at speed will override them. Gyro forces may slow things but with a
negative trail they can't *fix* them. Again, completely *subjective
opinion*.
I agree 100% with what you said except that mathematically the 3 axis always
go through the wheel but they see a projection of the forces we apply, as it
were. Only semantics.
If you want to see counter-steering spin the wheel in your hands with your
arms arranged like a normal fork. Now, say, quickly push forward with the
right arm and backward with the left (like a left turn). You'll notice an
immediate wheel lean to the right (like a right turn). i.e. push left for a
hard right and vise versa.
As I said before if I spin the wheel and do a python style pivot I get a
similar albeit much gentler effect. My problem is without getting on a
python I'm having trouble visualizing the exact physical//dynamic sensation
this would produce but it would seem to imply a somewhat similar experience
to a normal bike (counter steering etc applies). That's why I suspect it
adds what I would call, for lack of a better term, a neutral stability.
Improves things but not at the same rate as the underlying instability
increases. I think the solution lies in increasing the down force
proportionately or by getting to the negative trail.
Feel free to convince me otherwise as they are only subjective opinions and
as such I'm not married to them. It's a gut feel kind of thing (he says with
the perfect storm going on in his head).
Daryl - Oh here's a whacky thought, change your pivot angle dynamically as
your speed increases. Maybe something like rod ends on hydraulic pistons
that are in some way tied in with speed sensing. Maybe electronically or
more practically with a lever for the operator which would be used in the
course of riding like changing gears. Gad! I'm now visualizing bouncing
Pythons like Mexican "low-riders". Man, mixing Javascript and the mathmatics
of gyroscopes is bad for you!!! ;-D
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