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HS-1715: Simple Stochastic Study

HS-1715: Simple Stochastic Study

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HS-1715: Simple Stochastic Study

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This tutorial demonstrates how to run a stochastic study on simple functions defined using a Templex template.

The base input template defines two input variables, DV1 and DV2, labeled X and Y, respectively.  The objective of the study is to investigate the two random variables X, Y forming the two functions X+Y and 1/X + 1/Y – 2.

Before running this tutorial, you must complete tutorial Simple Optimization Study - HS-1710 or you can import the archive file HS-1710.hstx, available in <hst.zip>/HS-1715/.

hmtoggle_plus1greyStep 1: Run a Stochastic Study
1.In the Explorer, right-click and select Add Approach from the context menu.
2.In the HyperStudy - Add dialog, select Stochastic and click OK.
3.Go to the Specifications step.
4.In the work area, set the Mode to Latin Hypercube.
5.In the Settings tab, change the Number of runs to 50.

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6.Click Apply.
7.Go to the Evaluate step.
8.Click Evaluate Tasks. HyperStudy executes 50 runs and extracts the results.
9.Go to the Post processing step.

 
hmtoggle_plus1greyStep 2: Post-Process the Results of the Stochastic Study

In the Post processing step of a Stochastic approach, you can access additional tools to review results.

1.Click the Distribution tab.
2.Using the Channel selector, select Response 1.

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3.Click the Reliability tab.
4.Click Add Reliability.
5.In the HyperStudy - Add dialog, add two reliabilities.
6.Define reliability 1.
a.Set Response to Response1 (r_1).
b.Set Bound Type to <= (less than or equal to).
7.Define reliability 2.
a.Set Response to Response2 (r_2).
b.Set Bound Type to <= (less than or equal to).
8.Study the effects of bounds on the reliability by entering different values in the Bound Value column.
•For reliability 1, enter 1.050. The reliability value of Response_1 to be less than 1.05 is 48%.
•For reliability 2, enter 1.830. The reliability value of Response_2 to be less than ... is ...%.

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