II. How To Use ATILA

3.1 Bimorph (2)
BOUNDARY CONDITIONS


PROBLEM - 3D Rectangular Plate, PZT4 = 40mm x 6mm x 1mm x 2 pieces, Cantilever Support


BOUNDARY CONDITIONS
Polarization/Local Axes

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

Choose X and Angle -> Define X axis -> Click two points to define X axis -> Choose the suitable Cartesian P1 direction (z axis) -> Escape

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

Data -> Conditions -> Volumes -> Geometry -> Polarization (Cartesian) -> Define Polarization (P2) (0,0,-1) direction

Assign Polarization (Local-Axes P1 and P2) -> Choose the volume -> Finish

Potential

Data -> Conditions -> Surfaces -> Potential 0.0 (or Ground in ATILA 5.2.4 or higher version) -> Assign the bottom surface-> Forced Potential 1.0 -> Assign the top surface -> Floating -> Assign the center surface

Surface Contraints (Cantilever: One-End Clamp)

Data -> Conditions -> Surfaces -> Surface Constraints -> X, Y and Z components -> Clamped -> Assign left two surfaces

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

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