Optimization Responses

Optimization response entities define and store model responses for optimization problems.

Optimization responses do not have a display state in the modeling window.

Nastran Cards

Card Description
DRESP1 Defines a set of structural responses that is used in the design either as constraints or as an objective.
Note: Generic response
DRESP2 Defines equation responses that are used in the design, either as constraints or as an objective.
Note: Function response

OptiStruct Cards

Card Description
DRESP1 A response or a set of responses that are the result of a design analysis iteration. These responses can be used as a design objective or as design constraints.
Note: Bulk Data Entry
DRESP2 When a desired response is not directly available from OptiStruct, it may be calculated using DRESP2. This response can be a functional combination of any set of responses resulting from the design analysis iteration. Responses defined in this manner can be used as design objectives or constraints. The DRESP2 card identifies the equation to use for the response relationship and the input values to evaluate the response function.
Note: Bulk Data Entry
DRESP3 When a desired response is not available from OptiStruct, either directly or via equations, it may be calculated through external user-supplied functions implemented in shared/dynamic libraries or external files. The DRESP3 card identifies the external function to be called and defines the parameters to be transferred to that function.
Note: Bulk Data Entry
DSYSID Defines responses and their target values for a system identification problem.
Note: Bulk Data Entry
MODEWEIGHT Defines a multiplier for computed eigenvalues that are to be used in the calculation of the "weighted reciprocal eigenvalue" and "combined compliance index" optimization responses.
Note: Subcase Information Entry
PSD STRAIN
PSD STRESS
RMS STRAIN
RMS STRESS
WEIGHT Defines a multiplier for computed eigenvalues that are to be used in the calculation of the "weighted reciprocal eigenvalue" and "combined compliance index" optimization responses.
Note: Subcase Information Entry

Radioss Cards

Card Description
DRESSP1 Defines a response (mass, displacement, stress, velocity, and so on) or a set of responses.
DRESP2 Design Response via Equations for Design Optimization.