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Download Chapter 2 EXECUTIVE CONTROL COMMANDS
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User’s Reference Manual
3.4
SUBSTRUCTURE CONTROL COMMAND DESCRIPTIONS
The remainder of this chapter provides you with a description of the Substructure Control commands including their syntax and examples of their use. All Substructure Control commands are
entered in free-field format. In presenting the general formats for each command and its options,
the following conventions are used:
❒
Many Substructure Control commands contain keywords. All keywords are shown in
capitalized computer type such as: ALTER. All such keywords must be entered exactly as
they are specified, subject only to the exception that they may be abbreviated by their first
four characters.
❒
Some commands contain parentheses. These must be entered if an option requiring them is
selected.
❒
Lower case italicized computer type, such as comp_name, indicates that you must provide
a specific data value.
❒
Braces { } enclose a list of two or more options from which you may select one.
❒
Brackets [ ] indicate that the enclosed keywords and parameters may be omitted when you
use the command.
❒
When a choice is to be made from a list, the default choice is presented in boldface type as
CHOICE1
in the following: CHOICE2
DEFAULT
❒
The special symbol ♦ indicates a required subcommand.
❒
A single command line may not exceed 72 characters. However, you may continue a
command by ending the current record with a comma and continuing to the next record.
Additionally, command options have a valid data range and, in some cases, a default value. The
following table defines the data range specifications found in this chapter.
Data Range
Specifier
Meaning
Integer
The data must be an integer number in the range of indicated values.
Real
The data must be a real number in the range of indicated values.
Character
The data must be a string of characters beginning with a letter.
Keyword
The data must be a character string matching the first four or more
unique characters of a keyword option.
Name
The data must be a character string providing a substructure name.
UAI/NASTRAN
SUBSTRUCTURE CONTROL COMMANDS 3-7
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SUBS
