U.S. DEPARTMENT OF TRANSPORTATION - SaferCar.gov

TP-P572-V-00
CHECK SHEET NO. V6 (Continued)
THORAX WITHOUT ARM IMPACT TEST (S572.196)
(93 mm)
Dummy’s back
against seatback
Figure 51. Impactor position for the SID-IIsD thorax without arm test
__13 Move the legs together so that the knees are touching (see Figure 43).
__14 Position the feet so that they are vertical and as close together as possible, with the heels
touching the surface of the support table (see Figure 44).
__15 Adjust the dummy so that the thoracic lateral plane is 0 1° relative to horizontal (see
Figure 45).
__16 Adjust the dummy so that the thoracic fore/aft plane measures 24.6 2 relative to
horizontal. This measurement can be taken at the top of the shoulder rib mount (see
Figure 46). Once this positioning is complete, the face of the impactor should be
approximately parallel to ( 1), and just touching, the surface of the thorax, when the
pendulum is at its lowest position during travel.
Conduct the Test, Collect Data and Verify Performance
__17 Record the room temperature and humidity in Table V6. Verify that the temperature and
relative humidity meets specification by indicating “Pass” or “Fail” in the far right column
__18 The impactor shall have a mass of 13.97 0.23 kg with a 120.7 mm face diameter, and a
12.7 mm radius.
__19 Mount an accelerometer on the impactor with its sensitive axis in line with the longitudinal
centerline of the test probe.
__20 Release the impactor at an impact speed between 4.2 - 4.4 m/s at the instant of contact
with the dummy.
__21 The data acquisition system should conform to SAE Recommended Practice J211.
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