Computed vs. Predicted

Study the change in each of the variables/responses and the accuracy of the predicted compared to the computed result.

The accuracy of the starting point and the approximate optimum points after the first iteration can be illustrated, e.g. for the response HIC you may find:

LS-OPT Viewer

Restart the LS-OPT Viewer and select under Optimization the item History.
From the left side of the window select Responses → HIC.
For Value to Plot select Value.
If you want to see the accurate values, simply click nearby the red points. There appears a table, which states all the computed and predicted data, e.g. computed HIC vs. predicted HIC.

→ You can find out the appropriate values for the predicted (black) and the computed (red points) results. More iterations may lead to a better predictive capability.

comp.vs.pred_view1.png

(Note the range of the values when assessing the accuracy)

comp.vs.pred_view2.png

lsopt_output File

Open the lsopt_output file with a text editor.
Search in the file for "Evaluating Starting Design" and scroll a bit more forward.
You may find both the initial values of HIC, computed vs. predicted.
Search now in the file for "F I N A L".
The final values of HIC (computed and predicted) after one iteration are available.

comp.vs.pred_file1.png

comp.vs.pred_file2.png

With the same procedure you may find the other values of the variables and the responses:

	Start		First Iteration
	Predicted	Computed	Predicted	Computed
thood		1		1.548
tbumper		3		5
MASS	0.4103	0.4103	0.6569	0.6569
Intrusion	577.3	575.7	550	550.5
HIC	74.57	68.02	38.63	126.5
Max. Constr. Violation	27.27	25.68	1.162e-4	0.4658