Figures 10 and 11 show the velocity change of the target vehicle and of the OMDB in the 31 NHTSA's OI tests, respectively.
These results contradict the basic biomechanics understanding of injury risk and it raised concerns if there are other issues attributed to this trend that are related to the current test configuration, the OMDB specifications, or may even be the THOR M50 dummy characteristics.
The FMVSS 214 moving deformable barriers (MDB) for side impact was the bases for the current NHTSA's OMDB development.
Grid points were placed on the OMDB face prior to impact along 11 Rows (R1-R11) and 11 Columns (C1-C11) matrix.
Maximum values of the static crush measured on the vehicle and the OMDB matrix points are presented in Figure 18.
1] are the target vehicle and the OMDB masses respectively, and, [[upsilon].
Example of the intrusion or placed on the OMDB deformation contour plot executed on the barrier face at each cell after crash is shown in Figure 19.
The DE of the OMDB for the eight tests was calculated, as described in the previous section, and plotted against mass ration of their corresponding target vehicle to OMDB mass ration as shown in Figure 20.
Equation 7 can be used to calculate the DE of the target vehicle in OI test by subtracting the absorbed energy in the OMDB from total deformed energy.
Figure 21 shows the total system DE energy, the DE of the OMDB, the target vehicle DE, and the vehicle current DE for the 31 NHTSA's OI tests in the selected series, plotted against the target vehicles mass.