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*OBJECTIVE

Keyword type: step

With *OBJECTIVE one can define the objective functions in a sensitivity analysis. Right now the following objectives are allowed for TYPE=COORDINATE design variables:

and for TYPE=ORIENTATION design variables:


First line:

Repeat this line if needed.

The objective functions SHAPEENERGY, MASS and DISPLACEMENT require a *STATIC step before the *SENSITIVITY step, the objective function EIGENFREQUENCY requires a *FREQUENCY step immediately preceding the *SENSITIVITY step. Therefore, the {SHAPEENERGY, MASS, DISPLACEMENT} objective functions and the {EIGENFREQUENCY} objective function are mutually exclusive within one and the same *SENSITIVITY step.

Example:

*OBJECTIVE
2,10,33

defines the nodes 2, 10 and 33 to be design variables.


Example files: sensitivity_I.


next up previous contents
Next: *ORIENTATION Up: Input deck format Previous: *NSET   Contents
guido dhondt 2016-07-31