Objectives 

1.      Set up COMSOL for the FE implementation of the GWSh characterizing mechanical vibration of an L-shaped membrane.

2.      Generate the first ten eigenvalues and eigenmodes for the base mesh.

3.      Via a mesh refinement study, estimate the mesh necessary to predict the highest natural frequency to engineering accuracy.

4.      Modify the membrane design by introducing a fillet in the concave corner and characterize the effect of fillet radius on the smallest and fourth vibration eigenmode.