II. How To Use ATILA

1.2 Circular Disk (3)
BOUNDARY CONDITIONS


PROBLEM - 3D Circular Plate, kp Mode, PZT4 = 50mm f x 1mm t


BOUNDARY CONDITIONS

Potential

Data -> Conditions -> Surfaces -> Potential 0.0 (or Ground in ATILA 5.2.4 or higher version) -> Assign -> Potential 1.0 -> Assign

Since the gap between the top and bottom surfaces is narrow, you had better use the high magnification as shown below.
Focus-in and Focus-out

To check the assignment -> Draw -> Color
(As shown below, the color seems to be better than [All conditions -> Include local axes] in some case)

 

Polarization

Data -> Conditions -> Volumes -> Geometry -> Polarization (Cartesian) -> Define Polarization (P1)

We take the P1 downward along z [Local axis (0, 0, -1)]

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

Polarization/Local Axis

Choose 3PointsXZ -> Enter locl axes 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 the volume -> Finish

To check the assignment -> Draw -> All the conditions -> Include Local axes

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