Manufacturing Conditions and Geometrical Restrictions
For sizing with
SIMULIA Tosca Structure,
it is possible to define constraints (DVCON_SIZING
)
that have a direct influence on the individual design variables
(DV_SIZING).
This allows the manufacturing restrictions or geometrical design aspects to be
taken into consideration in the sizing optimization.
The different restrictions are listed below:
Frozen area
Element fixing by
exclusion from the optimization group.
Element fixing by
freezing elements (CHECK_TYPE = FROZEN).
Shell thickness control
Upper and lower bounds
for shell thicknesses (CHECK_TYPE = THICKNESS_BOUNDS).
Clustering of element
areas with the same shell thickness (CHECK_TYPE = CLUSTER)
Symmetry control
Area linking (
LINK_SIZING
)
Symmetry restriction (
LINK_SIZING)
Member size control
Minimum cluster width
control (CHECK_TYPE = MIN_CLUSTER_WIDTH)
Maximum member size
control (CHECK_TYPE = MAX_MEMBER)