This example computes the the vibration modes, eigenvalues, and frequencies for
a circular drum or membrane. The membrane is modeled by the unit circle and
assumed to be attached to a rigid frame. The Poisson PDE equation is used with
the Eigenvalue solver to compute the solution.
This model is available as an automated tutorial by selecting Model
Examples and Tutorials… > Classic PDE > Vibrations of a
Circular Membrane from the File menu. Or alternatively, follow
the linked step-by-step instructions.