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 usersupplied 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. 