[SciPy-user] Bicycle Wheel Precession
Fri Apr 27 12:10:19 CDT 2007
The wheel's rotation looks too slow, and the effect you're seeing would then
be nutation, which I think is normal given your initial conditions.
Reference: Goldstein's Classical Mechanics, p 217-219.
2007/4/26, Ryan Krauss <email@example.com>:
> I am trying to teach my dynamics students about teh precession of a
> bicycle wheel like in this video:
> If the x axis is along the axle of the wheel and the z axis points up,
> I think the motion can be modeled using the following ode:
> def NewtonEuler(x,t,M,I):
> return dxdt
> I use this function along with integrate.odeint in the attached file,
> but the surprising thing is that wz is sinusoidal rather than nearly
> constant. Experimentally, I see nearly constant precession.
> Can anyone help me find what is wrong with my approach?
> SciPy-user mailing list
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