Velocity/(m/s) 20 16 14 14 12 10 00 Velocity history of a Crash Test Dummy -E-09x+...

Transcribed Image Text:

Velocity/(m/s) 20 16 14 14 12 10 00 Velocity history of a Crash Test Dummy -E-09x+ 6E-07x- 9E-05x + 0.0068x-0.2415x+3.8428x-4.4848 6 y = 6E-40x6-2E-07x5+ 4E-05x4-0.0028x3+0.0975x-1.469x23.417 2 0 20 40 60 -2 none seatbelt Time /(ms) LONGITUDINAL VELOCITY 12 Engine hits barrier Acceleration -Unbelted occupant hits dan -Dash anal 1000 to to to to to 100 110 10 TIME AFTER IMPACT) Figure 3. Velocity history of a dummy in the front passenger seat of a car with various belt restraints, in a 35mph head-on test crash with a fixed barrier. The red, most curve, representing the car's dash panel, has a maximum decelera tion of 27g about 60 milliseconds after impact. 80 100 120 140 Poly. (none) Poly. (seatbelt) V(t) = 6 10-10 +6 2 107+5 +4 105+4 0.0028t + 0.0975t - 1.469t + 23.417 V(t) = 1 10+6 +6 107 +5 9 10-5 +4 + 0.0068t - 0.2145t + 3.8428t - 4.4848 Velocity/(m/s) 20 16 14 14 12 10 00 Velocity history of a Crash Test Dummy -E-09x+ 6E-07x- 9E-05x + 0.0068x-0.2415x+3.8428x-4.4848 6 y = 6E-40x6-2E-07x5+ 4E-05x4-0.0028x3+0.0975x-1.469x23.417 2 0 20 40 60 -2 none seatbelt Time /(ms) LONGITUDINAL VELOCITY 12 Engine hits barrier Acceleration -Unbelted occupant hits dan -Dash anal 1000 to to to to to 100 110 10 TIME AFTER IMPACT) Figure 3. Velocity history of a dummy in the front passenger seat of a car with various belt restraints, in a 35mph head-on test crash with a fixed barrier. The red, most curve, representing the car's dash panel, has a maximum decelera tion of 27g about 60 milliseconds after impact. 80 100 120 140 Poly. (none) Poly. (seatbelt) V(t) = 6 10-10 +6 2 107+5 +4 105+4 0.0028t + 0.0975t - 1.469t + 23.417 V(t) = 1 10+6 +6 107 +5 9 10-5 +4 + 0.0068t - 0.2145t + 3.8428t - 4.4848