Keyword type: step
This procedure is used to calculate a feasible direction for an optimization calculation. It must be preceded by one or more *SENSITIVITY steps and the design variables must be of type coordinate. The sensitivities calculated in the sensitivity steps can be used as an objective or as constraints. The feasible direction step calculates the resulting constrained sensitivity. There are no parameters for this keyword.
Example: *FEASIBLE DIRECTION
defines a feasible direction step.
Example files: opt1, opt3.