II. How To Use ATILA

1.2 Circular Disk (1)
GEOMETRY/DRAWING


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

and (2D Calcualtion)


  • Difference from the rectangular plate is how to treat the center portion in meshing (Quadrilateral element cannot be made in the center)

GEOMETRY/DRAWING

Create Surface Simple structure list

Geometry -> Create -> Object -> Circle -> Enter a center for the circle -> 0,0 -> Enter a normal for the circle -> Positive Z -> OK -> Enter a radius for the circle -> 25 -> Enter

Remember that Point = Black color, Line = Blue color, Surface = Magenta, Volume = Cyan.

Create the Center Quadrilateral Element - To obtain the better Meshing

Geometry -> Delete -> Surface -> Select the surface (click the magenta circle) -> Escape

Geometry -> Create -> Line -> Enter points to define line -> 5,0; 0,5; -5,0; 0,-5 and finally 5,0, successivly -> Create point procedure -> JOIN -> Escape

Geometry -> Edit -> Divide -> Num Divisions -> Select line to divide -> If you click the line, the line color change to Red -> Enter Value Window -> Enter "4" -> You will find 4 points with black color

Geometry -> Create -> Line -> Enter points to define line -> Click with Thick Cross Cursor successivly -> Create point procedure -> JOIN -> Escape

Geometry -> Create -> NURBS Surface -> Automatic -> Enter Value Window -> Enter number "4" -> You will create 5 new surfaces

Create Volumes Copy mode

Utilities -> Copy -> Surfaces -> Second point z=1.0 -> Do Extrude Surfaces -> Select
After selecting the circle (click on the magenta color circle line) -> Finish

When you select the surface (click on the Magenta line), the surface color Magneta changes to Red!

If Extrude is chosen, the 4 side-surfaces are also assigned. If you do not choose Extrude, two separate surfaces are created.

Geometry -> Create -> Volume -> Automatic 6-sided volumes

When you make the volume, you will find 5 Cyan color volumes.

View the Structure - Use Trackball and Shift

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