DL, LINE, AREA, Lab, Value1, Value2
Defines DOF constraints on lines.
LINELine at which constraints are to be specified. If
ALL, apply to all selected lines [LSEL]. If LINE = P, graphical picking is enabled and all remaining
command fields are ignored (valid only in the GUI). A component name
may also be substituted for LINE.
AREAArea containing line. The normal to the symmetry or antisymmetry surface is assumed to lie on this area. Defaults to the lowest numbered selected area containing the line number.
LabSymmetry label (see 2):
SYMM | — | Generate symmetry constraints. |
ASYM | — | Generate antisymmetry constraints. |
ANSYS DOF labels (see 3):
UX | — | Displacement in X direction. |
UY | — | Displacement in Y direction. |
UZ | — | Displacement in Z direction. |
ROTX | — | Rotation about X axis. |
ROTY | — | Rotation about Y axis. |
ROTZ | — | Rotation about Z axis. |
HDSP | — | Hydrostatic pressure. |
WARP | — | Warping magnitude. |
TEMP, TBOT, TE2, TE3, . . ., TTOP | — | Temperature |
VOLT | — | Electric scalar potential. |
AZ | — | Magnetic vector potential in Z direction. |
CONC | — | Concentration. |
ALL | — | Applies all appropriate DOF labels except HDSP. |
Value1Value of DOF (real part) or table name reference on
the line. Valid for all DOF labels. To specify a table, enclose
the table name in % signs (e.g., DL,LINE,AREA,TEMP,%tabname%). Use the *DIM command to define a table.
Value2For VOLT DOFs:
Actual value of the imaginary component of the degree of freedom.
You can transfer constraints from lines to nodes with the DTRAN or SBCTRAN commands. See the DK command for information about generating other constraints at lines.
Symmetry and antisymmetry constraints are generated as described on the DSYM command.
Setting Lab = VOLT and Value1 = 0 applies the J-normal
boundary condition (current density vector (J) flows normal to the
line). No input is required for the J-parallel condition because
it is the natural boundary condition.
Tabular boundary
conditions (Value1 = %tabname%) are available only for the following degree
of freedom labels: Electric (VOLT), Structural (UX, UY, UZ, ROTX,
ROTY, ROTZ), Acoustic (PRES, UX, UY, UZ), and temperature (TEMP, TBOT,
TE2, TE3, . . ., TTOP).
Constraints specified by the DL command can conflict with other specified constraints. See Resolution of Conflicting Constraint Specifications in the Basic Analysis Guide for details.