Document ID: chunk:federal_register_of_legislation:F2005L03992:body:0:p28
Version: federal_register_of_legislation:F2005L03992
Segment Type: other
Provision Reference: 
Character Range: 73100–76339

impact velocity of 4.3  0.1 m/s.
    5.7.6. The impact direction is perpendicular to the anterior-posterior axis of the dummy and the axis of the impactor coincides with the axis of the upper arm pivot.
    5.7.7. The peak acceleration of the impactor, filtered using CFC 180, should be between 7.5 and 10.5 g.
    5.8. Arms
    5.8.1. No dynamic certification procedure is defined for the arms.
    5.9. Thorax
    5.9.1. Each rib module is certified separately.
    5.9.2. The rib module is positioned vertically in a drop test rig and the rib cylinder is clamped rigidly onto the rig.
    5.9.3. The impactor is a free fall mass of 7.8 - 0.0/+ 0.1 kg with a flat face and a diameter of 150  2 mm.
    5.9.4. The centre line of the impactor should be aligned with the centre line of the rib's piston.
    5.9.5. The impact velocity is 1.0, 2.0, 3.0 and 4.0 m/s respectively.  Impact velocities should not vary from those specified by more than 2 per cent.
    5.9.6. The rib displacement should be measured, for instance using the rib's own displacement transducer.
    5.9.7. The rib certification requirements are shown in table 4 of this annex.
    5.9.8. The performance of the rib module can be adjusted by replacing the tuning spring inside the cylinder with one of a different stiffness.
    Table 4 - Certification requirements for the full rib module
    Impact Velocity (m/s)                                                    Displacement (mm)
                                                                             Minimum                Maximum
    1.0                                                                      10.0                   14.0
    2.0                                                                      23.5                   27.5
    3.0                                                                      36.0                   40.0
    4.0                                                                      46.0                   51.0

    5.10. Lumbar spine
    5.10.1. The lumbar spine is mounted to the special symmetrical certification headform with a mass of 3.9  0.05 kg (see figure 4).
    5.10.2. The headform and lumbar spine are mounted upside-down to the bottom of a neck-bending pendulum allowing a lateral motion of the system.
    5.10.3. The neck-pendulum is equipped with a uniaxial accelerometer mounted at 1,655  5 mm from the pendulum pivot.
    5.10.4. The neck-pendulum should be allowed to fall freely from a height chosen to achieve an impact velocity of 6.05  0.1 m/s measured at the accelerometer location.
    5.10.5. The neck-pendulum is decelerated from impact velocity to zero by an appropriate device, resulting in a deceleration-time history inside the corridor specified in figure 6 of this annex.  All channels have to be recorded using ISO 6487 CFC 1000 filters and filtered digitally using CFC 60.
    5.10.6. The maximum headform flexion angle relative to the pendulum should be 50  5 degrees and should occur between 39 and 53 ms.
    5.10.7. The maximum headform centre of gravity displacements in the lateral and vertical direction should be 104  7 mm and 33  7 mm respectively.
    5.10.8. The performance of the lumbar spine can be adjusted