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Title 49Subtitle BChapter VPart 572 → Subpart T


Title 49: Transportation
PART 572—ANTHROPOMORPHIC TEST DEVICES


Subpart T—Hybrid III 10-Year-Old Child Test Dummy (HIII-10C)


Contents
§572.170   Incorporation by reference.
§572.171   General description.
§572.172   Head assembly and test procedure.
§572.173   Neck assembly and test procedure.
§572.174   Thorax assembly and test procedure.
§572.175   Upper and lower torso assemblies and torso flexion test procedure.
§572.176   Knees and knee impact test procedure.
§572.177   Test conditions and instrumentation.
Appendix—Figures to Subpart T of Part 572

Source: 77 FR 11667, Feb. 27, 2012, unless otherwise noted.

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§572.170   Incorporation by reference.

(a) Certain material is incorporated by reference (IBR) into this part with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this section, NHTSA must publish notice of change in the Federal Register and the material must be available to the public. All approved material is available for inspection at the Department of Transportation, Docket Operations, Room W12-140, telephone 202-366-9826, and is available from the sources listed below. The material is available in electronic format through Regulations.gov, call 1-877-378-5457 or go to www.regulations.gov. It is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030 or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html.

(b) NHTSA Technical Information Services, 1200 New Jersey Ave., SE., Washington, DC 20590, telephone 202-366-5965.

(1) A parts/drawing list entitled, “Parts/Drawing List, Part 572 Subpart T, Hybrid III 10 Year Old Child Test Dummy (HIII-10C), March, 2015,” IBR approved for §572.171.

(2) A drawings and inspection package entitled, “Parts List and Drawings, Part 572 Subpart T, Hybrid III 10 Year Old Child Crash Dummy (HIII-10C), March 2015,” IBR approved for §572.171, including:

(i) Drawing No. 420-0000, Complete Assembly HIII 10-year-old, IBR approved for §§572.171, 572.172, 572.173, 572.174, 572.176, and 572.177.

(ii) Drawing No. 420-1000, Head Assembly, IBR approved for §572.171, §572.172, §572.173, and §572.177.

(iii) Drawing No. 420-2000, Neck Assembly, IBR approved for §§572.171, 572.173, and 572.177.

(iv) Drawing No. 420-3000, Upper Torso Assembly, IBR approved for §§572.171, 572.174, 572.175, and 572.177.

(v) Drawing No. 420-4000, Lower Torso Assembly, IBR approved for §§572.171, 572.174, 572.175, and 572.177.

(vi) Drawing No. 420-5000-1, Complete Leg Assembly—left, IBR approved for §§572.171, 572.176, and 572.177.

(vii) Drawing No. 420-5000-2, Complete Leg Assembly—right, IBR approved for §§572.171, 572.176, and 572.177.

(viii) Drawing No. 420-7000-1, Complete Arm Assembly—left, IBR approved for §572.171, and,

(ix) Drawing No. 420-7000-2, Complete Arm Assembly—right, IBR approved for §572.171.

(3) A procedures manual entitled “Procedures for Assembly, Disassembly, and Inspection (PADI) of the Hybrid III 10 Year Old Child Test Dummy (HIII-10C), March 2015”; IBR approved for §§572.171 and 572.177.

(c) SAE International, 400 Commonwealth Drive, Warrendale, PA 15096, call 1-877-606-7323.

(1) SAE Recommended Practice J211/1, Rev. Mar 95, “Instrumentation for Impact Tests—Part 1—Electronic Instrumentation,” IBR approved for §572.177.

(2) SAE Information Report J1733 of 1994-12, “Sign Convention for Vehicle Crash Testing,” December 1994, IBR approved for §572.177.

[77 FR 11667, Feb. 27, 2012, as amended at 80 FR 35860, June 23, 2015]

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§572.171   General description.

(a) The Hybrid III 10-year-old Child Test Dummy (HIII-10C) is defined by drawings and specifications containing the following materials:

(1) The parts enlisted in “Parts/Drawing List, Part 572 Subpart T, Hybrid III 10 Year Old Child Test Dummy (HIII-10C), March, 2015” (incorporated by reference, see §572.170),

(2) The engineering drawings and specifications contained in “Parts List and Drawings, Part 572 Subpart T, Hybrid III 10 Year Old Child Crash Dummy (HIII-10C), March 2015,” which includes the engineering drawings and specifications described in Drawing 420-0000, the titles of the assemblies of which are listed in Table A, and,

(3) A manual entitled “Procedures for Assembly, Disassembly, and Inspection (PADI) of the Hybrid III 10 Year Old Child Test Dummy (HIII-10C), March 2015.”

Table A

Component assemblyDrawing No.
(i) Head Assembly420-1000
(ii) Neck Assembly420-2000
(iii) Upper Torso Assembly420-3000
(iv) Lower Torso Assembly420-4000
(v) Complete Leg Assembly—left420-5000-1
(vi) Complete Leg Assembly—right420-5000-2
(vii) Complete Arm Assembly—left420-7000-1
(viii) Complete Arm Assembly—right420-7000-2

(b) The structural properties of the dummy are such that the dummy conforms to this Subpart in every respect before use in any test.

[77 FR 11667, Feb. 27, 2012, as amended at 80 FR 35860, June 23, 2015]

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§572.172   Head assembly and test procedure.

(a) The head assembly for this test consists of the complete head (drawing 420-1000), a six-axis neck transducer (drawing SA572-S11, included in drawing 420-0000), or its structural replacement (drawing 420-383X), and 3 accelerometers (drawing SA572-S4, included in drawing 420-0000) (all incorporated by reference, see §572.170).

(b) When the head assembly is dropped from a height of 376.0 ±1.0 mm (14.8 ±0.04 in) in accordance with paragraph (c) of this section, the peak resultant acceleration at the location of the accelerometers at the head CG may not be less than 250 G or more than 300 G. The resultant acceleration vs. time history curve shall be unimodal; oscillations occurring after the main pulse must be less than 10 percent of the peak resultant acceleration. The lateral acceleration shall not exceed 15 G (zero to peak).

(c) Head test procedure. The test procedure for the head is as follows:

(1) Soak the head assembly in a controlled environment at any temperature between 18.9 and 25.6 °C (66 and 78 °F) and a relative humidity from 10 to 70 percent for at least four hours prior to a test.

(2) Prior to the test, clean the impact surface of the skin and the impact plate surface with isopropyl alcohol, trichloroethane, or an equivalent. The skin of the head must be clean and dry for testing.

(3) Suspend and orient the head assembly as shown in Figure T1. The lowest point on the forehead must be 376.0 ±1.0 mm (14.8 ±0.04 in) from the impact surface. The 1.57 mm (0.062 in) diameter holes located on either side of the dummy's head shall be used to ensure that the head is level with respect to the impact surface.

(4) Drop the head assembly from the specified height by means that ensure a smooth, instant release onto a rigidly supported flat horizontal steel plate which is 50.8 mm (2 in) thick and 610 mm (24 in) square. The impact surface shall be clean, dry and have a micro finish of not less than 203.2 × 10−6 mm (8 micro inches) (RMS) and not more than 2032.0 × 10−6 mm (80 micro inches) (RMS).

(5) Allow at least 2 hours between successive tests on the same head.

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§572.173   Neck assembly and test procedure.

(a) The neck assembly for the purposes of this test consists of the assembly of components shown in drawing 420-2000 (incorporated by reference, see §572.170).

(b) When the head-neck assembly consisting of the head (drawing 420-1000), neck (drawing 420-2000), six-channel neck transducer (SA572-S11, included in drawing 420-0000), lower neck bracket assembly (drawing 420-2070), and either three uniaxial accelerometers (drawing SA572-S4, included in drawing 420-0000) or their mass equivalent installed in the head assembly as specified in drawing 420-1000 (all incorporated by reference, see §572.170), is tested according to the test procedure in paragraph (c) of this section, it shall have the following characteristics:

(1) Flexion. (i) Plane D, referenced in Figure T2, shall rotate in the direction of preimpact flight with respect to the pendulum's longitudinal centerline between 76 degrees and 90 degrees. During the time interval while the rotation is within the specified corridor, the peak moment, measured by the neck transducer (drawing SA572-S11, included in drawing 420-0000) (incorporated by reference, see §572.170), about the occipital condyles may not be less than 50 N-m (36.9 ft-lbf) and not more than 62 N-m (45.7 ft-lbf). The positive moment shall decay for the first time to 10 N-m (7.4 ft-lbf) between 86 ms and 105 ms after time zero.

(ii) The moment shall be calculated by the following formula: Moment (N-m) = My − (0.01778) × (FX).

(iii) My is the moment about the y-axis in Newton-meters, FX is the shear force measured by the neck transducer (drawing SA572-S11) in Newtons, and 0.01778 is the distance in meters from the load center of the neck transducer to the occipital condyle.

(2) Extension. (i) Plane D, referenced in Figure T3, shall rotate in the direction of preimpact flight with respect to the pendulum's longitudinal centerline between 96 degrees and 115 degrees. During the time interval while the rotation is within the specified corridor, the peak moment, measured by the neck transducer (drawing SA572-S11, included in drawing 420-0000) (incorporated by reference, see §572.170), about the occipital condyles may not be more than −37 N-m (−27.3 ft-lbf) and not less than −46 N-m (−33.9 ft-lbf). The positive moment shall decay for the first time to −10 N-m (−7.4 ft-lbf) between 100 ms and 116 ms after time zero.

(ii) The moment shall be calculated by the following formula: Moment (N-m) = My − (0.01778) × (FX).

(iii) My is the moment about the y-axis in Newton-meters, FX is the shear force measured by the neck transducer (drawing SA572-S11, included in drawing 420-0000) (incorporated by reference, see §572.170) in Newtons, and 0.01778 is the distance in meters from the load center of the neck transducer to the occipital condyle.

(3) Time zero is defined as the time of initial contact between the pendulum striker plate and the honeycomb material. All data channels shall be at the zero level at this time.

(c) Test procedure. The test procedure for the neck assembly is as follows:

(1) Soak the neck assembly in a controlled environment at any temperature between 20.6 and 22.2 °C (69 and 72 °F) and a relative humidity between 10 and 70 percent for at least four hours prior to a test.

(2) Torque the hex nut (drawing 420-2000, part 9000130) on the neck cable (drawing 420-2060) (both incorporated by reference, see §572.170) to 0.9 ±0.2 N-m (8 ±2 in-lbf) before each test on the same neck.

(3) Mount the head-neck assembly, defined in paragraph (b) of this section, on the pendulum described in Figure 22 of 49 CFR part 572 so that the leading edge of the lower neck bracket coincides with the leading edge of the pendulum as shown in Figure T2 for flexion tests and Figure T3 for extension tests.

(4)(i) Release the pendulum and allow it to fall freely from a height to achieve an impact velocity of 6.1 ±0.12 m/s (20.0 ±0.4 ft/s) for flexion tests and 5.03 ±0.12 m/s (16.50 ±0.40 ft/s) for extension tests, measured by an accelerometer mounted on the pendulum as shown in Figure T2 at the instant of contact with the honeycomb.

(ii) Stop the pendulum from the initial velocity with an acceleration vs. time pulse that meets the velocity change as specified below. Integrate the pendulum acceleration data channel to obtain the velocity vs. time curve:

Table B—Pendulum Pulse

Time
(ms)
Flexion Extension
M/sft/sm/sft/s
101.64-2.045.38-6.691.49-1.894.89-6.20
203.04-4.049.97-13.252.88-3.689.45-12.07
304.45-5.6514.60-18.534.20-5.2013.78-17.06

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§572.174   Thorax assembly and test procedure.

(a) The thorax consists of the part of the torso assembly designated as the upper torso (drawing 420-3000) (incorporated by reference, see §572.170).

(b) When the anterior surface of the thorax of a completely assembled dummy (drawing 420-0000) (incorporated by reference, see §572.170) is impacted by a test probe conforming to section 572.177 at 6.00 ±0.12 m/s (22.0 ±0.4 ft/s) according to the test procedure in paragraph (c) of this section:

(1) Maximum sternum displacement (compression) relative to the spine, measured with chest deflection transducer (drawing SA572-T4, included in drawing 420-0000) (incorporated by reference, see §572.170), must be not less than 37 mm (1.46 in) and not more than 46 mm (1.81 in). Within this specified compression corridor, the peak force, measured by the impact probe as defined in section 572.177 and calculated in accordance with paragraph (b)(3) of this section, shall not be less than 2.0 kN (450 lbf) and not more than 2.45 kN (551 lbf). The peak force after 20 mm (0.79 in.) of sternum displacement but before reaching the minimum required 37 mm (1.46 in.) sternum displacement limit shall not exceed 2.52 kN (567 lbf).

(2) The internal hysteresis of the ribcage in each impact as determined by the plot of force vs. deflection in paragraph (a)(1) of this section shall be not less than 69 percent but not more than 85 percent. The hysteresis shall be calculated by determining the ratio of the area between the loading (from time zero to maximum deflection) and unloading portions (from maximum deflection to zero force) of the force deflection curve to the area under the loading portion of the curve.

(3) The force shall be calculated by the product of the impactor mass and its measured deceleration.

(c) Test Procedure. The test procedure for the thorax assembly is as follows:

(1) The dummy is clothed in a form fitting cotton stretch above-the-elbow sleeved shirt and above-the-knees pants. The weight of the shirt and pants shall not exceed 0.14 kg (0.30 lb) each.

(2) Torque the lumbar cable (drawing 420-4130) (incorporated by reference, see §572.170) to 0.9 ±0.2 N-m (8 ±2 in-lbf) and set the lumbar adjustment angle to 12 degrees. Set the neck angle to 16 degrees.

(3) Soak the dummy in a controlled environment at any temperature between 20.6 and 22.2 °C (69 and 72 °F) and a relative humidity between 10 and 70 percent for at least four hours prior to a test.

(4) Seat and orient the dummy on a seating surface without back support as shown in Figure T4, with the limbs extended horizontally and forward, parallel to the midsagittal plane, the midsagittal plane vertical within ±1 degree and the ribs level in the anterior-posterior and lateral directions within ±0.5 degrees.

(5) Establish the impact point at the chest midsagittal plane so that the impact point of the longitudinal centerline of the probe coincides with the midsagittal plane of the dummy within ±2.5 mm (0.1 in) and is 12.7 ±1.1 mm (0.5 ±0.04 in) below the horizontal-peripheral centerline of the No. 3 rib and is within 0.5 degrees of a horizontal line in the dummy's midsagittal plane.

(6) Impact the thorax with the test probe so that at the moment of contact the probe's longitudinal centerline falls within 2 degrees of a horizontal line in the dummy's midsagittal plane.

(7) Guide the test probe during impact so that there is no significant lateral, vertical, or rotational movement.

(8) No suspension hardware, suspension cables, or any other attachments to the probe, including the velocity vane, shall make contact with the dummy during the test.

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§572.175   Upper and lower torso assemblies and torso flexion test procedure.

(a) The test objective is to determine the stiffness of the molded lumbar assembly (drawing 420-4100), abdominal insert (drawing 420-4300), and chest flesh assembly (drawing 420-3560) on resistance to articulation between the upper torso assembly (drawing 420-3000) and lower torso assembly (drawing 420-4000) (all incorporated by reference, see §572.170).

(b) When the upper torso assembly of a seated dummy is subjected to a force continuously applied at the head to neck pivot pin level through a rigidly attached adaptor bracket as shown in Figure T5 according to the test procedure set out in paragraph (c) of this section:

(1) The lumbar spine-abdomen-chest flesh assembly shall flex by an amount that permits the upper torso assembly to translate in angular motion relative to the vertical transverse plane 35 ±0.5 degrees at which time the force applied must be not less than 180 N (40.5 lbf) and not more than 250 N (56.2 lbf).

(2) Upon removal of the force, the torso assembly must return to within 8 degrees of its initial position.

(c) Test Procedure. The test procedure for the upper/lower torso assembly is as follows:

(1) Torque the lumbar cable (drawing 420-4130) (incorporated by reference, see §572.170) to 0.9 ±0.2 N-m (8 ±2 in-lbf) and set the lumbar adjustment angle to 12 degrees. Set the neck angle to 16 degrees.

(2) Soak the dummy in a controlled environment at any temperature between 20.6 and 22.2 °C (69 and 72 °F) and a relative humidity between 10 and 70 percent for at least four hours prior to a test.

(3) Assemble the complete dummy (with or without the legs below the femurs) and attach to the fixture in a seated posture as shown in Figure T5.

(4) Secure the pelvis to the fixture at the pelvis instrument cavity rear face by threading four 14 -inch cap screws into the available threaded attachment holes. Tighten the mountings so that the test material is rigidly affixed to the test fixture and the pelvic-lumbar joining surface is 18 degrees from horizontal and the legs are parallel with the test fixture.

(5) Attach the loading adaptor bracket to the spine of the dummy as shown in Figure T5.

(6) Inspect and adjust, if necessary, the seating of the abdominal insert within the pelvis cavity and with respect to the chest flesh, assuring that the chest flesh provides uniform fit and overlap with respect to the outside surface of the pelvis flesh.

(7) Flex the dummy's upper torso three times between the vertical and until the torso reference frame, as shown in Figure T5, reaches 30 degrees from the vertical transverse plane. Bring the torso to vertical orientation and wait for 30 minutes before conducting the test. During the 30-minute waiting period, the dummy's upper torso shall be externally supported at or near its vertical orientation to prevent it from drooping.

(8) Remove all external support and wait two minutes. Measure the initial orientation angle of the torso reference plane of the seated, unsupported dummy as shown in Figure T5. The initial orientation angle may not exceed 20 degrees.

(9) Attach the pull cable and the load cell as shown in Figure T5.

(10) Apply a tension force in the midsagittal plane to the pull cable as shown in Figure T5 at any upper torso deflection rate between 0.5 and 1.5 degrees per second, until the angle reference plane is at 35 ±0.5 degrees of flexion relative to the vertical transverse plane.

(11) Continue to apply a force sufficient to maintain 35 ±0.5 degrees of flexion for 10 seconds, and record the highest applied force during the 10-second period.

(12) Release all force at the attachment bracket as rapidly as possible, and measure the return angle with respect to the initial angle reference plane as defined in paragraph (c)(7) of this section three minutes after the release.

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§572.176   Knees and knee impact test procedure.

(a) The knee assembly for the purpose of this test is the part of the leg assembly shown in drawing 420-5000 (incorporated by reference, see §572.170).

(b) When the knee assembly, consisting of lower upper leg assembly (420-5200), femur load transducer (SA572-S10, included in drawing 420-0000) or its structural replacement (420-5121), lower leg assembly (420-5300), ankle assembly (420-5400), and foot molded assembly (420-5500) (all incorporated by reference, see §572.170) is tested according to the test procedure in subsection (c) of this section:

(1) The peak resistance force as measured with the test probe-mounted accelerometer must not be less than 2.6 kN (585 lbf) and not more than 3.2 kN (719 lbf).

(2) The force shall be calculated by the product of the impactor mass and its deceleration.

(c) Test Procedure. The test procedure for the knee assembly is as follows:

(1) Soak the knee assembly in a controlled environment at any temperature between 20.6 and 22.2 °C (69 and 72 °F) and a relative humidity between 10 and 70 percent for at least four hours prior to a test.

(2) Mount the test material and secure it to a rigid test fixture as shown in Figure T6. No part of the foot or tibia may contact any exterior surface.

(3) Align the test probe so that throughout its stroke and at contact with the knee it is within 2 degrees of horizontal and collinear with the longitudinal centerline of the femur.

(4) Guide the pendulum so that there is no significant lateral, vertical, or rotational movement at the time of initial contact between the impactor and the knee.

(5) The test probe velocity at the time of contact shall be 2.1 ±0.03 m/s (6.9 ±0.1 ft/s).

(6) No suspension hardware, suspension cables, or any other attachments to the probe, including the velocity vane, shall make contact with the dummy during the test.

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§572.177   Test conditions and instrumentation.

(a) The following test equipment and instrumentation is needed for qualification as set forth in this subpart:

(1) The test probe for thoracic impacts is of rigid metallic construction, concentric in shape, and symmetric about its longitudinal axis. It has a mass of 6.89 ±0.05 kg (15.2 ±0.1 lb) and a minimum mass moment of inertia of 2040 kg-cm2 (1.81 lbf-in-sec2) in yaw and pitch about the CG. One-third ( 13 ) of the weight of the suspension cables and their attachments to the impact probe is included in the calculation of mass, and such components may not exceed five percent of the total weight of the test probe. The impacting end of the probe, perpendicular to and concentric with the longitudinal axis, is at least 25.4 mm (1.0 in) long, and has a flat, continuous, and non-deformable 121 ±0.25 mm (4.76 ±0.01 in) diameter face with a maximum edge radius of 12.7 mm (0.5 in). The probe's end opposite to the impact face has provisions for mounting of an accelerometer with its sensitive axis collinear with the longitudinal axis of the probe. No concentric portions of the impact probe may exceed the diameter of the impact face. The impact probe has a free air resonant frequency of not less than 1000 Hz, which may be determined using the procedure listed in the PADI (incorporated by reference, see §572.170).

(2) The test probe for knee impacts is of rigid metallic construction, concentric in shape, and symmetric about its longitudinal axis. It has a mass of 1.91 ±0.05 kg (4.21 ±0.1 lb) and a minimum mass moment of inertia of 140 kg-cm2 (0.124 lbf-in-sec2) in yaw and pitch about the CG. One third ( 13 ) of the weight of the suspension cables and their attachments to the impact probe may be included in the calculation of mass, and such components may not exceed five percent of the total weight of the test probe. The impacting end of the probe, perpendicular to and concentric with the longitudinal axis, is at least 12.5 mm (0.5 in) long, and has a flat, continuous, and non-deformable 76.2 ±0.2 mm (3.00 ±0.01 in) diameter face with a maximum edge radius of 12.7 mm (0.5 in). The probe's end opposite to the impact face has provisions for mounting an accelerometer with its sensitive axis collinear with the longitudinal axis of the probe. No concentric portions of the impact probe may exceed the diameter of the impact face. The impact probe has a free air resonant frequency of not less than 1000 Hz, which may be determined using the procedure listed in the PADI (incorporated by reference, see §572.170).

(3) Head accelerometers have dimensions, response characteristics, and sensitive mass locations specified in drawing SA572-S4 (included in drawing 420-0000) and are mounted in the head as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(4) The upper neck force and moment transducer has the dimensions, response characteristics, and sensitive axis locations specified in drawing SA572-S11 (included in drawing 420-0000) and is mounted in the head-neck assembly as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(5) The chest deflection transducer has the dimensions and response characteristics specified in drawing SA572-S50 (included in drawing 420-0000) and is mounted to the upper torso assembly as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(b) The following instrumentation may be required for installation in the dummy for compliance testing. If so, it is installed during qualification procedures as described in this subpart:

(1) The thorax CG accelerometers have the dimensions, response characteristics, and sensitive mass locations specified in drawing SA572-S4 (included in drawing 420-0000) (incorporated by reference, see §572.170) and are mounted in the torso assembly in a triaxial configuration within the spine box instrumentation cavity.

(2) The lower neck force and moment transducer has the dimensions, response characteristics, and sensitive axis locations specified in drawing SA572-S40 (included in drawing 420-0000) and is mounted to the neck assembly by replacing the lower neck mounting bracket 420-2070 as shown in drawing 420-2000 (all incorporated by reference, see §572.170).

(3) The clavicle force transducers have the dimensions, response characteristics, and sensitive axis locations specified in drawing SA572-S41 (included in drawing 420-0000) and are mounted in the shoulder assembly as shown in drawing 420-3800 (both incorporated by reference, see §572.170).

(4) The IR-Tracc chest deflection transducers have the dimensions and response characteristics specified in drawing SA572-S43 (included in drawing 420-0000) and are mounted to the spine box assembly as shown in drawing 420-8000 (both incorporated by reference, see §572.170).

(5) The spine and sternum accelerometers have the dimensions, response characteristics, and sensitive mass locations specified in drawing SA572-S4 (included in drawing 420-0000) and are mounted in the torso assembly in uniaxial fore-and-aft oriented configuration arranged as corresponding pairs in two locations each on the sternum and at the spine box of the upper torso assembly as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(6) The lumbar spine force-moment transducer has the dimensions, response characteristics, and sensitive axis locations specified in drawing SA572-S12 (included in drawing 420-0000) and is mounted in the lower torso assembly as shown in drawing 420-4000 (both incorporated by reference, see §572.170).

(7) The iliac force transducers have the dimensions and response characteristics specified in drawing SA572-S13 L and R (included in drawing 420-0000) and are mounted in the lower torso assembly as shown in drawing 420-4000 (both incorporated by reference, see §572.170).

(8) The pelvis accelerometers have the dimensions, response characteristics, and sensitive mass locations specified in drawing SA572-S4 (included in drawing 420-0000) and are mounted in the torso assembly in triaxial configuration in the pelvis bone as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(9) The femur force and moment transducers (SA572-S10, included in drawing 420-0000) have the dimensions, response characteristics, and sensitive axis locations specified in the appropriate drawing and are mounted in the upper leg assembly, replacing the femur load cell simulator (drawing 420-5121) as shown in drawing 420-5100 (all incorporated by reference, see §572.170).

(10) The tilt sensors have the dimensions and response characteristics specified in drawing SA572-S42 (included in drawing 420-0000) and are mounted to the head, thorax, and pelvis assemblies as shown in drawing 420-0000 (both incorporated by reference, see §572.170), sheet 2 of 6.

(c) The outputs of transducers installed in the dummy and in the test equipment specified by this part are to be recorded in individual data channels that conform to SAE Recommended Practice J211 (incorporated by reference, see §572.170) except as noted, with channel frequency classes as follows:

(1) Pendulum acceleration, CFC 180,

(2) Pendulum D-plane rotation (if transducer is used), CFC 60,

(3) Torso flexion pulling force (if transducer is used), CFC 60,

(4) Head acceleration, CFC 1000,

(5) Neck forces, upper and lower, CFC 1000,

(6) Neck moments, upper and lower, CFC 600,

(7) Thorax CG acceleration, CFC 180,

(8) Sternum deflection, Class 600,

(9) Sternum and rib accelerations, Class 1000,

(10) Spine accelerations, CFC 180,

(11) Lumbar forces, CFC 1000,

(12) Lumbar moments, CFC 600,

(13) Shoulder forces, CFC 180,

(14) Pelvis accelerations, CFC 1000,

(15) Iliac forces, CFC 180,

(16) Femur and tibia forces, CFC 600,

(17) Femur and tibia moments, CFC 600.

(18) Thorax probe acceleration, CFC 180,

(19) Knee probe acceleration, CFC 600.

(d) Coordinate signs for instrumentation polarity are to conform to SAE Information Report J1733 (incorporated by reference, see §572.170).

(e) The mountings for sensing devices have no resonant frequency less than 3 times the frequency range of the applicable channel class.

(f) Limb joints are set at one G, barely restraining the weight of the limb when it is extended horizontally. The force needed to move a limb segment is not to exceed 2G throughout the range of limb motion.

(g) Performance tests of the same component, segment, assembly, or fully assembled dummy are separated in time by not less than 30 minutes unless otherwise noted.

(h) Surfaces of dummy components may not be painted except as specified in this subpart or in drawings subtended by this subpart.

[77 FR 11667, Feb. 27, 2012, as amended at 80 FR 35860, June 23, 2015]

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Appendix—Figures to Subpart T of Part 572

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