The following files were used in this problem:
- xducer2d.dat -- Input file for the 2D analysis. 
- xducer2d.cdb -- Common database file for the 2D mesh (called by xducer2d.dat). 
- xducer3d.dat -- Input file for the 3D analysis. 
- xducer3d.cdb -- Common database file for the 3D mesh (called by xducer3d.dat).