Add and Configure the DOE Adapter

Configure the Design of Experiments (DOE) by defining the ranges of interest for the input parameters (the beam's width, height, and length), the output parameters of interest (maximum stress, maximum deflection, and mass), and the number of simulations or experiments that will be run.

This task shows you how to:

Add the DOE Adapter

  1. Scroll the action bar to the right to display the process adapters in the secondary area.
  2. From the Flow section of the action bar, click DOE and move the cursor over the process flow diagram.
  3. Drop the adapter in the Drop here to insert over all box that appears.



    The DOE adapter appears over the physics simulation in the process flow diagram. The diagram describes a simulation process. Each blue box represents a simulation activity inside the simulation process. For example, DOE in the figure below represents a simulation activity.



Configure the DOE Adapter

  1. Double-click the DOE adapter to open the editor.
  2. From the General tab, select Latin Hypercube as the DOE Technique.

    Your choice of DOE technique depends on several factors, including:

    • Parameters you want to study.
    • Number of experiments or trials you can afford to run.
    • Output quantities of interest.
    • Overall goal of the study.

    The DOE Editor displays the advantages and disadvantages of each DOE technique, and more details are provided in the Process Composer guide. The Latin Hypercube technique is suitable for this simple example. Latin Hypercube allows many points and combinations to be studied, as long as the number of design points is greater than the number of input parameters.

  3. Enter 4 as the Number of points.
    The DOE adapter will run four simulations while varying the dimensions of the beam. The combination of data points that will be studied is a function of the selected DOE technique.
  4. From the Factors tab, select all three input parameters to be varied.
  5. Enter the lower and upper limits for the range of each input parameter as shown in the table below:

    Parameter Lower Upper Relation
    Height -50 50 %
    Length 0 50 %
    Width -50 50 %

    The values that you enter are a percentage of the baseline—the original dimensions of the beam geometry. For example, the original width was 30 mm, and the DOE will explore widths between 15 and 45 mm.

  6. From the Design Matrix tab, observe the combination of the geometry dimensions to be tested during the four runs.

    The DOE uses a random seed to generate the values in the design matrix. As a result, the values will change each time you configure the DOE. To produce repeatable results, you can select a fixed seed from the General tab.

  7. From the Responses tab, select all three output parameters as DOE responses to be monitored.
  8. Click OK.
  9. Save your work.