Select Input Variables

Select and review the input variables to include in the Optimization.

Input variables should be independent of each other. Selection of input variables may not be unique. In Figure 1, either r_i and r_o or r_i and t can be selected as input variables.

Figure 1. Example: Input Variable Definition

Note: The selection of input variables affects the Optimization process.

For a larger search space and increased flexibility in the solution, you need to use as many independent input variables as possible. For computational affordability, you need to identify and only include the most important input variables.

It is recommended that you use as many independent input variables as possible to promote a large search space and increased flexibility. However, for computational affordability you should only include the most important input variables.

1. Go to the Select Input Variables step for the Optimization.
2. In the work area, Active column, select the checkboxes for the input variables to include in the Optimization.
   By default all of the input variables that you defined in the study Setup are active.
3. Optional: Edit input variable properties as needed, such as the lower bounds, nominal value, and upper bounds.