II. How To Use ATILA

4.2 Ring-Dot Type Transformer (1)
GEOMETRY/DRAWING MATERIAL ASSIGNMENT


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


  • Transformer with higher k and step-up voltage ratio
  • Refresh the way how to treat the center portion of the circle in meshing

GEOMETRY/DRAWING

Create Circles
Surface : Geometry -> Create -> Object -> Circle -> Enter Center -> 0, 0 -> Normal to Z -> Radius -> 10, 6 and 5 respectively

Then Geometry -> Delete -> Surfaces

Create Electrode Surface
Geometry -> Edit -> Divide -> Num Divisions -> Select three circle lines -> Number of Division -> 4

Create Center Portion Area
Geometry -> Create -> Lines -> Enter Point-> 2,0 -> 0,2 -> -2,0 -> 0,-2 -> 2,0 -> Joint -> Escape

Segment the Surfaces
Geometry -> Create -> Lines -> Choose the Points -> Finally you obtain the 4-sided rectangles for all areas

Create the Surfaces
Geometry -> Create -> NURBS Surfaces by Automatic -> Enter Number of Lines -> 4

Create Volumes
Utilities -> Copy -> Surfaces -> Extrude Surfaces by 1 mm -> Select
Geometry -> Create -> Volume -> Automatic 6-sided volumes -> 13 Volumes appear in blue lines

MATERIAL ASSIGMENT
Piezoelectric Materials

Data -> Materials -> Piezoelectric -> PZT8 -> Assign -> Pick all Volumes
Click Draw -> All materials -> Check the material is assigned as PZT4