Multidisciplinary Objectives (Minmax and Maxmin Formulations)

This section deals with multidisciplinary objective functions.

It is possible to minimize the maximum term or to maximize the minimum term referenced in the objective function. In such cases the value of the objective function is generated with a maximum or a minimum function over a set of terms defined by Design Responses.

If the maximum objective term should be minimized, the definition is as follows:

OBJ_FUNC
 ID_NAME = ...
 DRESP = ...
 DRESP = ...
 ...
 TARGET = MINMAX
END_

If the minimum objective term should be maximized, the definition is as follows:

OBJ_FUNC
 ID_NAME = ...
 DRESP = ...
 DRESP = ...
 ...
 TARGET = MAXMIN
END_

In both cases the DRESP definitions are referring to the desired design responses for the objective function using the ID name of the defined responses. The defined responses that should be minimized or maximized have to be valid design responses.