II. How To Use ATILA

4.2 Ring-Dot Type Transformer (2)
BOUNDARY CONDITIONS MESHING


PROBLEM - Ring-Dot Type Transformer with PZT8, INPUT: Ring = 20 mm outer f - 12 mm inner f x 1 mm t, OUTPUT: Dot = 10 mm x 1 mm t


BOUNDARY CONDITIONS
Polarization/Local Axes

Data -> Conditions -> Volumes -> Geometry -> Polarization (Cartesian) -> Define Polarization (P1) (0,0,1) direction

Choose 3PointsXZ -> Center (0,0,0) -> Define X axis by putting (1,0,0) -> Then define Z axis by putting (0,0,1) -> Escape

Assign Polarization (Local-Axes P1) -> Choose all the PZT volumes -> Finish

Potential

Data -> Conditions -> Surfaces -> Potential 0.0 (or Ground in ATILA 5.2.4 or higher version) -> Assign the bottom (Ring and Dot) 9 surfaces of the PZT

Forced Potential 1.0 -> Assign the top Ring 4 surfaces

Finally, Floating -> Assign the top Dot 5 surfaces

MESHING

Mapped Mesh

Meshing -> Structured -> Volumes -> Select all volumes -> Then Cancel the further process
Meshing -> Structured -> Lines -> Enter number to divide line -> Choose "1" for the lines -> Generate

Use the higher number such as 2 for the higher accurate calculation.