Adams Basic Package > Adams Insight > Tutorials and Examples > Using Adams Insight with Adams Car > Working with Results

Working with Results

Overview

This chapter guides you through reviewing the results of your analysis, fitting your data to a polynomial to determine which factors most affect model performance, and publishing results to an HTML or SYLK file.
The sections in this chapter are:

Reviewing Results

After Adams Car completes the trials defined in your design matrix, you return to Adams Insight interface to view the results.
To view your simulation results:
■In the treeview, under Design, select Work Space.
Simulation results from Adams Car appear in the design matrix as shown in Figure 16.
Figure 16 Design Matrix After Running Trials in Adams Car

Fitting Results

Now that Adams Car has completed the trials defined in your design matrix, you can use Adams Insight to fit your results to a polynomial or a response surface. The purpose of fitting your results is to establish a relationship between the factors and responses that you selected for the design matrix. Fitting results includes a multiple regression. You will be able to investigate the parts of the regression in the Summary, located in the treeview under Analysis, after completing the following steps. For more information on this topic, refer to the Adams Insight online help.
Note:  
The material in the following sections includes statistical terms related to DOEs. For explanations of these terms, refer to the Adams Insight online help.
To fit your results:
1. From the Adams Insight toolbar, select the Fit results tool . You can also select the Tools menu, and then select Fit New Model.
The Model Properties Summary window appears. Here, you can enter information on your model.
2. In the Regression column, select the response, e_001_achassis_gs_full_sys_Understeer_grad.
3. In the Display column, select the type of results you want to view. For example, Figure 17 shows an example of the Fit table.
Figure 17 Results Table with Fit for Regression
For definitions of the items in the results tables, refer to the online help.
The tables also provide you with a color code that indicates the soundness of your results:
Green indicates that all fit criteria meet or exceed highest fitting thresholds
Yellow indicates that the fit criterion may bear investigation
Red indicates that the fit criterion should be investigated
To refine the fit:
Here is a suggested list of steps that you can use to view and improve the fit:
1. Check R2 and interpret the ANOVA table.
♦Verify residuals
♦Remove outliers, if any
♦Remove terms, if necessary
2. Check R2 and interpret the ANOVA table.
♦Transform response, if necessary
♦Change model order, if needed
3. Check R2 and interpret the ANOVA table.

Publishing Results

Adams Insight lets you save your files as either HTML or SYLK files. Once saved, you can use either a browser or spreadsheet program, such as Excel, to modify factors and see the effect on responses without performing full simulations.
To publish your results:
1. In the treeview, under Analysis, select Model_01, go to the Adams Insight toolbar, and then select the Export to Web, slk, etc. tool . You can also select the Tools menu, point to Export, and then select HTML Format.
The Save dialog box appears and prompts you to save your results as xxx.htm, where xxx is the name of your file.
2. Enter a name for your file and specify the path where you would like it to reside, and then select Save.
Adams Insight saves your file in the directory that you specified.
3. Continue with the next section, Modifying Values Using a Web Browser, to learn how to view and use the results in the HTML file.

Modifying Values Using a Web Browser

Using the HTML page that you saved (see 1. through 3.), you can modify the input factor values of your experiment and see the changes instantly reflected in the column that lists estimated responses. To learn more about making modifications to your experiment using an HTML or SYLK page, refer to the online help.
To modify your factors in an HTML page:
1. In a Web browser, open the HTML page you created for your experiment. Make sure the browser you use is enabled to read JavaScript.
The results of your experiment appear as shown next.
Figure 18 HTML Page
2. Change the value for the factor achassis_gs_front_suspension_beamx_sta_diameter from 36 to 39, and then select Update.
3. If you use the plus or minus buttons to modify values, the responses change dynamically.
The estimated responses adjust to reflect the new factor values. Notice that the value for both responses variables reflect a change.
4. You can continue to vary the factor values and investigate how changes to them affect your responses. To learn more about analyzing the results of your experiment and publishing your results to HTML or SYLK pages, refer to the Adams Insight online help.

Additional Information on the Web Page

In addition to the basic factor and response information that appears when you first open the HTML file in your Web browser, you can view response statistics and response effects as a function of each factor. To view this information, use the check boxes below the list of factors. The check boxes are:
■Contributions - This check box appears if you specified a non-zero tolerance for any factor. When present and selected, this check box displays the Tolerance Contributions table that provides the percent contribution of each factor to the tolerance of each response.
■Stats - Displays R2, R2 adjusted, P, and R/V statistics for each response.
■Effects - For each response, displays effects caused by varying each factor from its minimum to maximum value.
■Nonscalar - Displays composite responses in addition to the scalar responses.
■Plots- Opens a new window that displays a plot for each response.
■Info - This button displays a separate window that provides summary information about the DOE parameters for the current page. It also provides Web environment information that is valuable if you need to contact Adams technical support.
For more information on the controls and information provided by the HTML page, refer to the Adams Insight online help.