Development of a Component Head Injury Criteria (HIC ... - FAA
Development of a Component Head Injury Criteria (HIC ... - FAA
Development of a Component Head Injury Criteria (HIC ... - FAA
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The input pulse for all the simulations used the standard triangular Federal Aviation<br />
Administration (<strong>FAA</strong>) 16-g, 180-ms pulse as shown in figure 27. Figure 28 shows the<br />
MADYMO lap belt properties, while figure 29 shows the properties <strong>of</strong> the seat cushion.<br />
Acc'g'<br />
18<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0<br />
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2<br />
Time(Sec)<br />
Figure 27. MADYMO Simulation Input Pulse<br />
600<br />
500<br />
Force (N)<br />
400<br />
300<br />
200<br />
Hysteresis model = "1"<br />
Hysteresis slope= 1.00000E+06<br />
100<br />
load<br />
unload<br />
0<br />
0 0.01 0.02 0.03 0.04 0.05<br />
Displacement (m)<br />
Figure 28. MADYMO Lap Belt Load Deflection Properties<br />
Force (N)<br />
p<br />
2000<br />
load<br />
1800<br />
unload<br />
1600<br />
1400<br />
Hysteresis Model="1"<br />
1200<br />
Hysteresis slope = 6.00000E+06<br />
1000<br />
800<br />
600<br />
400<br />
200<br />
0<br />
0 0.002 0.004 0.006 0.008 0.01 0.012 0.014<br />
Displacement (m)<br />
Figure 29. Seat Cushion Load Deflection Properties<br />
20