Mechanical APDL Basic Analysis Guide - Ansys

For more information, see Initial State (p. 87).
2.5.14. Applying Loads Using TABLE Type Array Parameters
To apply loads using TABLE parameters, you use the appropriate loading commands or menu paths for your
analysis. However, instead of specifying an actual value for a particular load, you specify the name of a table
array parameter. Not all boundary conditions support tabular loads; please refer to the documentation on
the specific loads you are working with to determine if tabular loads are supported.
Note
When defining loads via commands, you must enclose the table name in % symbols: %tabname%.
For example, to specify a table of convection values, you would issue a command similar to the
following:
SF,all,conv,%sycnv%,tbulk
If your data cannot be conveniently expressed as a table, you may want to use function boundary conditions.
See Using the Function Tool (p. 75).
If working interactively, you can define a new table at the time you apply the loads by selecting the "new
table" option. You will be asked to define the table through a series of dialog boxes. You can also define a
table before you apply loads by choosing the menu path Utility Menu> Parameters> Array Parameters>
Define/Edit, or by using the *DIM command. Tabular loads can be defined in both the global Cartesian
(default) or a local coordinate system you define with the LOCAL command (only Cartesian, spherical and
cylindrical coordinate systems are valid). If working in batch mode, you need to define the table before issuing
any of the loading commands.
For more information on defining table array parameters (both interactively and via command), see TABLE
Type Array Parameters of the ANSYS Parametric Design Language Guide.
2.5.14.1. Defining Primary Variables
When you define the table array parameter, you can define various primary variables, depending on the
type of analysis you are doing. Table 2.11: Boundary Condition Type and Corresponding Primary Variable (p. 49)
lists boundary conditions and their associated primary variables for supported types of analyses. Additional
primary variables are available using function boundary conditions. See Using the Function Editor (p. 76) for
more information. Primary variables are shown as the valid labels used by the *DIM command. You can
apply tabular loads according to a local coordinate system defined via LOCAL, and specified in *DIM.
When defining the tables, the primary variables must be in ascending order in the table indices (as in any
table array).
Table 2.11 Boundary Condition Type and Corresponding Primary Variable
Boundary Condition
Thermal Analyses
Fixed Temperature
Heat Flow
Film Coefficient (Convection)
Primary Variable
TIME, X, Y, Z
TIME, X, Y, Z, TEMP
TIME, X, Y, Z, TEMP, VELO-
CITY
2.5.14. Applying Loads Using TABLE Type Array Parameters
Command [1]
D,,(TEMP, TBOT, TE2, TE3, . . ., TTOP)
F,,(HEAT, HBOT, HE2, HE3, . . ., HTOP)
SF,,CONV
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