INNER FILL
The functions in the INNER FILL dialogue
are used for filling interior holes and missing geometry on the outer boundary
of the product geometry such as windows, wheel houses, tail light lamps,
shipping holes, access holes, bolt holes, etc. There are four functions
in this menu as shown in Figure
1. CLOSED CURVE (or closed area)
2. OPEN CURVE (or open area)
3. POLYGON
4. AUTO FILL
Figure
CLOSED CURVE
This function fills an inner hole or closed area in a part. The program highlights the inner
boundary as shown in Figure
Figure
At the same time, DYNAFORM displays a
dialog window as shown in Figure
Figure
OPEN CURVE
This function allows the user to fill an
open or cut-out area. Figure
Figure
Figure
1. Select the OPEN CURVE option, and the program will prompt the user to select elements near the expected fill area.
2. Select OK to accept the selected elements and a window will be
displayed as shown in Figure
SELECT NODES
This option allows the user to select a set of
nodes to define the outer boundary of the open curve.
SELECT LINE
This option allows the user to select an existing
line to define the outer boundary of the open curve. After a line is selected,
the program displays the SELECT NODES window and prompts the user:
SELECT
TWO NODES TO SPLIT THE LINE, OR PICK OK TO USE THE ENTIRE LINE
After selecting two nodes, the line segment between the selected nodes
will be used as the boundary to close the open curve.
CREATE LINE
This option allows the user to create a line as the
outer boundary to close the open curve for filling. After a line is
created, the SELECT NODES window will be displayed:
SELECT
TWO NODES TO SPLIT THE LINE, OR PICK OK TO USE THE ENTIRE LINE
After selecting two nodes, the line segment between the selected nodes will
be used to close the open curve.
CREATE SPLINE
Allows the user to create a
spline curve as the outer boundary for fill mesh. After the spline is created, the program will display the
SELECT NODES window and prompt the user with the following message:
SELECT
TWO NODES TO SPLIT THE LINE, OR PICK OK TO USE THE ENTIRE LINE
After selecting two nodes, the spline segment between
the two points will be used.
3. After the curve is defined by any of the above methods to close the region, the program will fill in a set of elements within the region.
POLYGON
This function allows the user to select a set of nodes as the boundary edge to create a mesh to fill the boundary. Once this function is selected, the program will display the SELECT NODE window and prompt the user with the following message:
SELECT A SET OF NODES CONSECUTIVELY AS BOUNDARY EDGE
After a set of nodes is selected, a set of elements is created to fill the inner boundary.
AUTO FILL
Once selected, this function automatically finds and fills all inner holes in the part with elements.
eta/DYNAFORM will create elements as well as surfaces in all filled areas. The user may choose whether or not to display the surfaces. This option is controlled in the DYNAFORM configuration file: DYNAFORMDEFAULT, located in the program installation directory.
Note:
Click UNDO on the OPTION window as in Figure