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Lagrangian for Flywheel System:

Find the Lagrangian for the system shown in the figure below. The particle $m_2$ moves on a vertical axis and the whole system rotates about this axis with a constant angular velocity $\Omega$.


\begin{pspicture}(5,0)(5,10)
\psline(5,0)(5,10)
\par\psline(5.2,1)(8,5)
\pslin...
...scurve{<->}(4.7,9.3)(5,9.1)(5.3,9.3)
\rput(5.5,9.1){$\phi$}
\par\end{pspicture}

From the Lagrangian, find the equations of motion. That is a pretty disgusting differential equation to solve, as far as I can see. Do you know any tricks?

Following the ``Hamiltonian-recipe'', find the Hamiltonian and the equations of motion. The $\dot{\theta}$ equation isn't to bad, but $p_{\theta}$ isn't so pretty.





Matt Heavner 2002-10-03