Comparing Results from Multiple Studies/Physical Tests

Did you know that you can compare data between multiple studies by using functionality in COSMOS called COMPARE TEST DATA?

Let us take an example of a model with multiple studies defined. We are interested in comparing the stress and displacement results at a specific strain gauge location (located by a vertex shown in the figure).

You can access the compare test data tool by right clicking on the part/assembly name as shown.

In the Compare pop-up window, the user is required to select the vertex where the data is to be studied by clicking the “ADD” button. The user can select the type of quantity to be studied there as well (stress, displacement etc.).In the bottom portion of this window, the user can select which studies are to be compared. Once the user selects the “COMPARE” button, COSMOS would list out the results by comparing the different quantities against the selected studies.

Upon assigning the vertex/vertices where the result quantity is to be studied, as well as the studies in the bottom panel which are used in the comparison, the values are computed. These results are shown in the adjoining figure. Note that the percentage deviation from the first study in the list is also indicated in the columns. This helps estimate the error/eccentricity in results when comparing multiple “what-if” scenarios.