ID_NAME
|
=
<id_name_of_dv_shape>
|
Name of the
DV_BEAD definition.
|
ND_GROUP
|
=
<name_of_node_group>
|
Name of the node group (design nodes).
|
INITIAL_DV_FIELD
|
=
<name_of_file>
|
Name of the file with the initial optimization displacements
field to be used for the optimization.
|
Remarks
- Only surface nodes are regarded as being design nodes at
ND_GROUP
.
- Single standing nodes are not regarded as being design nodes at
ND_GROUP
.
- Midside nodes are not considered to be design nodes at
ND_GROUP
. The midside nodes will be placed between
the edge nodes at the end of the design cycle.
- Only nodes at shell elements might be defined as design nodes at
ND_GROUP
.
- The
INITIAL_DV_FIELD
option is only available for
sensitivity-based optimization.
- The file applied at
INITIAL_DV_FIELD
that contains the initial
optimization displacements field must be located in the start directory of the
optimization job.
The format of the
file must be ONF (Optimization Neutral File). The initial optimization
displacements field is extracted from the data block 730 with the title
DISP_OPT.
- When using optimization displacements of a previous optimization
run for the new optimization, it is recommended that you rename the file
BEAD_XXX.onf (for example, to
INITIAL_OPT_DISPL.onf
). Otherwise name conflicts
with the running optimization (with newly generated optimization displacements
files BEAD_XXX.onf) might lead to confusion in the post-processing.
INITIAL_DV_FIELD
for bead optimization means
initial optimization displacements.
Examples
DV_BEAD
ID_NAME = my_dv_bead
ND_GROUP = design_node_grp
END_