Engineering Solutions

Dequations panel

Dequations panel

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Dequations panel

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The Dequations panel allows you to create user-defined functions for responses and design properties.

hmtoggle_plus1greyCreate User-Defined Functions
1.In the Dequations panel, enter a name for the dequation definition (max. 8 characters) in dequation = .
2.Enter the function or functions in the edit equation: field. The functions must follow these guidelines:
•Each dequation definition may consist of one or more equations, which are separated by semicolons ( ; ).  A semicolon must not follow the last equation.
•The first equation must take the following form:

dequation-1

•Subsequent equations may reference the resultant variables of the previous equations in the following manner:

dequation-2

•Constants may be specified as integers or in a floating-point format.  A floating-point number can be in a format of either normal decimal-point format (3.90) or scientific notation (2.0E-3.0).
•Only alphanumeric characters may be used in variable names. (i.e., You may not use underscores, monetary symbols, punctuation symbols, or mathematical operators in variable names.)
•See DEQATN in the OptiStruct online help for more information on defining dequations.
3.Click create.
hmtoggle_plus1greyUpdate User-Defined Functions
1.In the Dequations panel, double click dequation = and select a function to update.
2.Enter the function or functions in the edit equation: field. The functions must follow these guidelines:
•Each dequation definition may consist of one or more equations, which are separated by semicolons ( ; ).  A semicolon must not follow the last equation.
•The first equation must take the following form:

dequation-1

•Subsequent equations may reference the resultant variables of the previous equations in the following manner:

dequation-2

•Constants may be specified as integers or in a floating-point format.  A floating-point number can be in a format of either normal decimal-point format (3.90) or scientific notation (2.0E-3.0).
•Only alphanumeric characters may be used in variable names. (i.e., You may not use underscores, monetary symbols, punctuation symbols, or mathematical operators in variable names.)
•See DEQATN in the OptiStruct online help for more information on defining dequations.
3.Click update.
4.Click return.
hmtoggle_plus1greyReview User-Defined Functions
1.In the Dequations panel, click review.
2.Select the function to be reviewed.
3.Click return.

 

See Also:

DEQATN in the OptiStruct online help