First, it is necessary to define variables and responses. Among the responses, one will be defined as the objective function. The others can be used in limiting constraints.
The goal of an optimization study is to find the solution of a problem of the following type:
Minimize (Objective Function) 

Subject to: 
Inequality Constraint 1 < Limit 1 Inequality Constraint 2 < Limit 2 ... Equality Constraint 1 = Value 1 Equality Constraint 2 = Value 2 

With: 
minimum1 < design variable 1 < maximum1 minimum2 < design variable 2 < maximum2 ... 
•  Variables are model characteristics which vary during the analysis. 
•  Responses are results which are extracted at the end of each computation and stored for postprocessing. 
•  The goal of a parametric study is to discover the influence of variables modifications on the model responses. 
To define variables and responses:
1.  From the Menu Bar, select Process, then Study, then Optimization, then Edit Parameters. 
A new notebook page appears.
2.  Go to the Variables or Responses page. 
Just after the variables and responses are defined, it is necessary to also define the version of RADIOSS to be used, the number of processors, and how the computations should be submitted.
To define the computational options:
1.  From the Menu Bar, select Process, then Study, then Optimization, then RADIOSS Computational Options. 
The following window appears:
2.  Select an Execution Mode. 
3.  Select the RADIOSS version to use. 
4.  Enter the Number of Processors to use. 
5.  Click the Ok button. 
Performing a task consists of defining an optimization problem and solving it. Before creating a new task, design variables and responses on the model should have been defined. Also, the RADIOSS computational options should have been defined.
1.  From the Menu Bar of HyperCrash, select Process, then Study, then Optimization, then New Optimization Study. 
The following window appears.
2.  Enter a Task Name and click Ok. 
A directory named MOPT_TASK_D00RootName_TaskName is created, and all the necessary files are copied into it. The DSS / MOPT module with which the problem definition, resolution and postprocessing are going to be performed is then run.
The next step is the definition of an optimization problem.
1.  From the Menu Bar of HyperCrash, select Process, then Study, then Optimization, then Open Optimization Study. 
The following window appears.
2.  Select a task, and click Ok. 
The optimization study module with which the problem definition, resolution, and postprocessing are going to be performed is then run.
Create Variables in a Property
Create Variables in a Material
Create Variables in a Loadcase
Create Variables in a Connection
Create Translation/Scaling/Rotation Variables
Modify a Variable or a Response
Delete a Variable or a Response